TITLE: Breeding and Selecting Crops for Insect Pest Resistance PUBLICATION DATE: February 1992 ENTRY DATE: September 1995 EXPIRATION DATE: UPDATE FREQUENCY: CONTACT: Jane Gates Alternative Farming Systems Information Center National Agricultural Library Room 304, 10301 Baltimore Ave. Beltsville, MD 20705-2351 Telephone: (301) 504-6559 FAX: (301) 504-6409 DOCUMENT TYPE: text DOCUMENT SIZE: 400k (196 pages) ============================================================== ISSN: 1052-5378 United States Department of Agriculture National Agricultural Library 10301 Baltimore Blvd. Beltsville, Maryland 20705-2351 Breeding and Selecting Crops for Insect Pest Resistance January 1986 - December 1991 QB 92-25 Quick Bibliography SeriesBibliographies in the Quick Bibliography Series of the National Agricultural Library, are intended primarily for current awareness, and as the title of the series implies, are not indepth exhaustive bibliographies on any given subject. However, the citations are a substantial resource for recent investigations on a given topic. They also serve the purpose of bringing the literature of agriculture to the interested user who, in many cases, could not access it by any other means. The bibliographies are derived from computerized on-line searches of the AGRICOLA data base. Timeliness of topic and evidence of extensive interest are the selection criteria. The author/searcher determines the purpose, length, and search strategy of the Quick Bibliography. Information regarding these is available upon request from the author/searcher. Copies of this bibliography may be made or used for distribution without prior approval. The inclusion or omission of a particular publication or citation may not be construed as endorsement or disapproval. To request a copy of a bibliography in this series, send the series title, series number and self-addressed gummed label to: U.S. Department of Agriculture National Agricultural Library Public Services Division, Room 111 Beltsville, Maryland 20705 Document Delivery Information: Read NAL_Document_Delivery_Information to get directions for ordering publications through interlibrary loan. Breeding and Selecting Crops for Insect Pest Resistance January 1986 - December 1991 Quick Bibliography Series: QB 92-25 Updates QB 89-75 496 citations from AGRICOLA Jane Potter Gates Alternative Farming Systems Information Center February 1992National Agricultural Library Cataloging Record: Gates, Jane Potter Breeding and selecting of crops for pest resistance. (Quick bibliography series ; 92-25) 1. CropsžDisease and pest resistancežBibliography. 2. Plant breedingžBibliography. 3. Plant selectionžBibliography. I. Title. aZ5071.N3 no.92-25 AGRICOLA Citations in this bibliography were entered in the AGRICOLA database between January 1979 and the present. SAMPLE CITATIONS Citations in this bibliography are from the National Agricultural Library's AGRICOLA database. An explanation of sample journal article, book, and audiovisual citations appears below. JOURNAL ARTICLE: Article title. Author. Place of publication: Publisher. Journal Title. Date. Volume (Issue). Pages. (NAL Call Number). Example: Morrison, S.B. Denver, Colo.: American School Food Service Association. School foodservice journal. Sept 1987. v. 41 (8). p.48-50. ill. (NAL Call No.: DNAL 389.8.SCH6). BOOK: Title. Author. Place of publication: Publisher, date. Information on pagination, indices, or bibliographies. (NAL Call Number). Example: Exploring careers in dietetics and nutrition. Kane, June Kozak. New York: Rosen Pub. Group, 1987. Includes index. xii, 133 p.: ill.; 22 cm. Bibliography: p. 126. (NAL Call No.: DNAL RM218.K36 1987). AUDIOVISUAL: Title. Author. Place of publication: Publisher, date. Supplemental information such as funding. Media format (i.e., videocassette): Description (sound, color, size). (NAL Call Number). Example: All aboard the nutri-train. Mayo, Cynthia. Richmond, Va.: Richmond Public Schools, 1981. NET funded. Activity packet prepared by Cynthia Mayo. 1 videocassette (30 min.): sd., col.; 3/4 in. + activity packet. (NAL Call No.: DNAL FNCTX364.A425 F&N AV). BREEDING AND SELECTING CROPS FOR INSECT PEST RESISTANCE Search Strategy Set Items Description S1 87215 SH=F200 S2 56337 SH=F821 S3 2288 SH=F200 AND SH=F821 S4 31908 RESISTAN? S5 1750 S3 AND RESISTAN? S6 2461 REGISTRATION S7 1695 S5 NOT REGISTRATION S8 194937 CROP? S9 14747 CORN S10 16717 MAIZE S11 17834 SOYBEAN? S12 31299 WHEAT S13 11237 CEREAL? S14 20777 GRAIN? S15 7596 SORGHUM? S16 1628 MILLET? S17 2743 OATS S18 9705 VEGETABLES S19 1596 SUGARBEETS S20 15412 COTTON S21 795 S7 AND (CROP? OR CORN OR MAIZE OR SOYBEAN? OR WHEAT OR CEREAL? OR GRAIN? OR SORGHUM? OR MILLET? OR OATS OR VEGETABLES OR SUGARBEETS OR COTTON) S22 7617 ALFALFA S23 4386 SUNFLOWER? S24 3903 PEANUT? S25 2817 PEAS S26 5705 BEANS S27 79 S7 AND (ALFALFA OR SUNFLOWER? OR PEANUT OR PEAS OR BEANS) S28 865 S21 OR S27 S29 857 S28 NOT FRUIT? S30 778 S29/ENG S31 507 S30 AND UD=8601:9999 S32 507 S31/TI,DE 1 NAL Call. No.: aS21.R44A7 1983 virus tolerance ratings of maize genotypes grown in Missouri. Wallin, J.R.; Darrah, L.L. Beltsville, Md. : The Service; 1985 Sep. ARS - United States Department of Agriculture, Agricultural Research Service (34): 8 p.; 1985 Sep. Language: English Descriptors: Missouri; Zea mays; Genotypes; Disease resistance; Maize dwarf mosaic virus; Maize chlorotic dwarf virus; Inbred lines; Insect pests; Disease vectors 2 NAL Call. No.: 421 J822 Adult sorghum midge (Diptera: Cecidomyiidae) nonpreference for a resistant hybrid sorghum. Waquil, J.M.; Teetes, G.L.; Peterson, G.C. College Park, Md. : Entomological Society of America; 1986 Apr. Journal of economic entomology v. 79 (2): p. 455-458; 1986 Apr. Includes references. Language: English Descriptors: Texas; Sorghum bicolor; Hybrids; Pest resistance; Contarinia sorghicola; Host parasite relationships; Oviposition 3 NAL Call. No.: SB608.M2I57 1987 Advances in rearing the European corn borer on a Meridic diet. Guthrie, W.D. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 46-59. ill., maps; 1987. Includes references. Language: English Descriptors: Zea mays; Breeding programs; Resistance; Insect pests; Ostrinia nubilalis; Mass rearing; Techniques; Synthetic diets 4 NAL Call. No.: QH442.G445 Agracetus genetically engineers cotton. Fort Lee, N.J. : Technical Insights, Inc; 1987 Jan. Genetic technology news v. 7 (1): p. 2; 1987 Jan. Language: English Descriptors: Gossypium hirsutum; Bacillus thuringiensis; Genetic engineering; Pest resistance 5 NAL Call. No.: 6 W55 Alfalfa fights back: wild and hairy strains courted. Hodgson, P.; Posler, G.L. Madison, Wis. : American Society of Agronomy; 1986 Nov. Crops and soils magazine v. 39 (2): p. 5-6. ill; 1986 Nov. Language: English Descriptors: Medicago sativa; Trichomes; Hymenoptera; Pest resistance; Stickiness; Germplasm releases; Pest control 6 NAL Call. No.: 421 J822 Analysis of resistance in cabbage varieties to damage by Lepidoptera and Thysanoptera. Shelton, A.M.; Hoy, C.W.; North, R.C.; Dickson, M.H.; Barnard, J. College Park, Md. : Entomological Society of America; 1988 Apr. Journal of economic entomology v. 81 (2): p. 634-640; 1988 Apr. Includes references. Language: English Descriptors: New York; Brassica oleracea var. capitata; Varieties; Crop damage; Pest resistance; Artogeia rapae; Plutella xylostella; Thrips tabaci; Trichoplusia ni; Population density; Regression analysis 7 NAL Call. No.: 421 J822 Antibiosis effect of sorghum on the convergent lady beetle (Coleoptera: Coccinellidae), a third-trophic level predator of the greenbug (Homoptera: Aphididae). Rice, M.E.; Wilde, G.E. Lanham, Md. : Entomological Society of America; 1989 Apr. Journal of economic entomology v. 82 (2): p. 570-573; 1989 Apr. Includes references. Language: English Descriptors: Sorghum bicolor; Hybrids; Pest resistance; Schizaphis graminum; Hippodamia convergens; Host parasite relationships; Pest control; Greenhouse experimentation Abstract: The effects of a tri-trophic level (grain sorghum- greenbug-coccinellid) interaction were examined in the laboratory using greenhouse-grown plants. Two resistant sorghum, Sorghum bicolor (L.) Moench, hybrids, Dekalb DK-41Y and DK-59E, which exhibit antibiosis to greenbugs, Schizaphis graminum (Rondani), were tested along with a greenbug-susceptible hybrid, Horizon 101G. Single egg clusters from Hippodamia convergens Guerin females were randomly separated at hatching into two groups. Each group was fed greenbugs from either a resistant or susceptible grain sorghum hybrid. Plant antibiosis reduced larval-pupal survival and increased the amount of time from egg eclosion to pupation in coccinellids that fed on greenbugs from both of the resistant hybrids compared with the susceptible hybrid. Survival to adulthood was 82.9% in the 101G-susceptible treatment and 62.1% for larvae fed greenbugs from resistant KD-41Y. Survival was 91.6% in the susceptible 101G treatment and 86.5% in the resistant DK-59E treatment. Resistant sorghum hybrid DK-59E had a significant treatment-by-sex interaction effect on coccinellid adult weights, with females that consumed greenbugs from the resistant hybrid weighing less, whereas males weighed more when compared with the respective sexes feeding on greenbugs from the susceptible sorghum hybrid. 8 NAL Call. No.: QL461.I57 Antibiosis mechanism of resistance to stem borer, Chilo partellus (Swinhoe) in sorghum. Singh, S.P.; Verma, A.N. Oxford : Pergamon Press; 1988. Insect science and its application v. 9 (5): p. 579-582; 1988. Includes references. Language: English Descriptors: Haryana; Sorghum bicolor; Genotypes; Chilo partellus; Larvae; Plant pests; Pest resistance; Antibiotics; Life cycles; Growth; Mortality 9 NAL Call. No.: 420 IN23 Antibiotic effects of cotton genotypes on Jassid, Amrasca devastans (Distant). Bhat, M.G.; Joshi, A.B.; Singh, M. New Delhi : Entomological Society of India; 1985 Mar. Indian journal of entomology v. 47 (pt.1): p. 1-5; 1985 Mar. Includes references. Language: English Descriptors: Gossypium hirsutum; Gossypium arboreum; Genotypes; Pest resistance; Amrasca devastans; Antibiotics 10 NAL Call. No.: SB608.M2I57 1987 Approaches in the U.S. Corn Belt for the management of maize insects with resistant cultivars. Peters, D.C.; Turpin, F.T. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 253-256; 1987. Includes references. Language: English Descriptors: Corn belt of U.S.A.; Zea mays; Cultivars; Resistance; Insect pests; Pest management; Insect control; Control methods; Yield losses; Prevention; Yield increases 11 NAL Call. No.: SB123.A88 1988 Approaches to insect resistance screening in grain legumes. Rogers, D.J.; Brier, H.B. Wagga Wagga, N.S.W., Australia : Organising Committee, Agricultural Research Institute, 1988? :.; 1988. Ninth Australian Plant Breeding Conference, Wagga Wagga, 27th June-1st July, 1988 / [edited by K.S. McWhirter, R.W. Downes, B.J. Read]. p. 247-248; 1988. Language: English Descriptors: Pulses; Pest resistance; Screening tests 12 NAL Call. No.: 80 F9464 Arthropod resistance in plant introduction accessions of Malus sp. to some arthropod pests of economic importance. Goonewardene, H.F.; Povish, W.R. University Park, Pa. : American Pomological Society; 1988 Jul. Fruit varieties journal v. 42 (3): p. 88-91; 1988 Jul. Includes references. Language: English Descriptors: Malus; Cultivars; Plant breeding; Pest resistance; Resistance to injurious factors; Arthropod pests 13 NAL Call. No.: 421 J822 Association of an endophytic fungus in perennial ryegrass and resistance to the hairy chinch bug (Hemiptera: Lygaeidae). Mathias, J.K.; Ratcliffe, R.H.; Hellman, J.L. Lanham, Md. : Entomological Society of America; 1990 Aug. Journal of economic entomology v. 83 (4): p. 1640-1646; 1990 Aug. Includes references. Language: English Descriptors: Lolium perenne; Cultivars; Crop damage; Pest resistance; Blissus leucopterus; Larvae; Survival; Acremonium; Interactions Abstract: Laboratory tests demonstrated that 'Repell,' a cultivar of perennial ryegrass, Lolium perenne L., infected with the fungal endophyte, Acremonium lolii Latch, Christensen & Samuels, exhibited a high level of insect resistance to the hairy chinch bug, Blissus leucopterus hirtus Montandon. First and third instars and adult hairy chinch bugs reared on endophyte-infected plants had significantly lower survival. On endophyte-free 'Repell,' nymphs and adults resided primarily on the leaf sheath. In contrast, on endophyte-infected 'Repell,' nymphs and adults either avoided the plant or resided only on the endophyte-free leaf blade. Nymphs were able to detect the presence of the endophyte in a choice test and consistently selected endophyte-free 'Repell.' These results support field observations of resistance in association with endophyte-infected ryegrass and suggest that the incorporation of endophytes into ryegrass will lead to significant reductions in hairy chinch bug infestations. 14 NAL Call. No.: aS21.A8U5/ARS Attraction of stem infesting insects to sunflower and implications for host--plant resistance. Brewer, G.J.; Charlet, L.D. Washington, D.C. : The Service; 1990. Reprints - U.S. Department of Agriculture, Agricultural Research Service [355]: p. 16-22; 1990. Includes references. Language: English Descriptors: North Dakota; Helianthus; Hybrids; Lines; Pest resistance; Curculionidae; Cylindrocopturus adspersus; Zygogramma 15 NAL Call. No.: 421 J822 Behavioral and physiological responses of Sogatella furcifera (Homoptera: Delphacidae) to selected resistant and susceptible rice cultivars. Khan, Z.R.; Saxena, R.C. College Park, Md. : Entomological Society of America; 1985 Dec. Journal of economic entomology v. 78 (6): p. 1280-1286. maps; 1985 Dec. Includes references. Language: English Descriptors: Asia; Pacific Islands; Oryza sativa; Cultivars; Pest resistance; Sogatella furcifera; Behavior; Physiology; Crop sensitivity 16 NAL Call. No.: QH540.E32 Behavioral reactions of cereal aphids fed on corn of varying resistance. Vereshchagina, A.B.; Gandrabur, S.I. New York, N.Y. : Consultants Bureau; 1988 Nov. The Soviet journal of ecology v. 19 (2): p. 98-101; 1988 Nov. Translated from: Ekologiia, (2), 1988, p. 35-39. (QH540.E3). Includes references. Language: English; Russian Descriptors: Zea mays; Rhopalosiphum maidis; Rhopalosiphum padi; Pest resistance; Varieties; Varietal susceptibility; Feeding behavior; Population density 17 NAL Call. No.: 421 EN895 Behavioral responses of female adult Trichoplusia ni to volatiles from soybeans versus a preferred host, lima bean. Liu, S.H.; Norris, D.M.; Marti, E. Dordrecht : Kluwer Academic Publishers; 1988 Nov. Entomologia experimentalis et applicata v. 49 (1/2): p. 99-109; 1988 Nov. Includes references. Language: English Descriptors: Glycine max; Phaseolus lunatus; Cultivars; Pest resistance; Volatile compounds; Chemical composition; Trichoplusia ni; Animal behavior; Responses; Insect attractants; Insect repellents; Insect traps 18 NAL Call. No.: SB599.C8 Bemisia tabaci (Homoptera: Aleyrodidae): populations on different cotton varieties and cotton stickiness in Israel. Butler, G.D. Jr; Rimon, D.; Henneberry, T.J. Guildford, Eng. : Butterworths; 1988 Feb. Crop protection v. 7 (1): p. 43-47; 1988 Feb. Includes references. Language: English Descriptors: Israel; Gossypium hirsutum; Cultivars; Pest resistance; Bemisia tabaci; Dry farming; Irrigated farming 19 NAL Call. No.: A00033 Big success in gene-engineered cotton. San Francisco, Calif. : Deborah J. Mysiewicz; 1990 Oct31. BioEngineering news v. 11 (44): p. 4-5; 1990 Oct31. Language: English Descriptors: Gossypium hirsutum; Bacillus thuringiensis; Pest resistance; Lepidoptera; Usda; Field tests 20 NAL Call. No.: 421 EN895 Biochemical basis of winter wheat resistance to the grain aphid, Sitobion avenae. Ciepiela, A. Dordrecht : Kluwer Academic Publishers; 1989 Jul. Entomologia experimentalis et applicata v. 51 (3): p. 269-275; 1989 Jul. Includes references. Language: English Descriptors: Poland; Triticum; Winter wheat; Cultivars; Free amino acids; Protein content; Pest resistance; Sitobion avenae 21 NAL Call. No.: SB608.M2I57 1987 Biochemical methodologies and approaches for determining the basis of maize resistance to insects. Reese, J.C.; Waiss, A.C. Jr; Legacion, D.M. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 244-252; 1987. Includes references. Language: English Descriptors: Zea mays; Resistance; Insect pests; Resistance mechanisms; Biochemistry; Techniques; Allelochemicals; Antibiosis; Genotypes; Bioassays 22 NAL Call. No.: 421 J822 Biological effects of developing sorghum panicles in a meridic diet on fall armyworm (Lepidoptera: Noctuidae) development. Wiseman, B.R.; Pitre, H.N.; Fales, S.L.; Duncan, R.R. College Park, Md. : Entomological Society of America; 1986 Dec. Journal of economic entomology v. 79 (6): p. 1637-1640; 1986 Dec. Includes references. Language: English Descriptors: Georgia; Sorghum bicolor; Genotypes; Spodoptera frugiperda; Pest resistance; Panicles; Tannins; Developmental stages; Larvae; Development 23 NAL Call. No.: 421 C16 Biology of Telenomus chloropus (Hymenoptera: Scelionidae) from eggs of Nezara viridula (Hemiptera: Pentatomidae) reared on resistant and susceptible soybean genotypes. Orr, D.B.; Boethel, D.J.; Jones, W.A. Ottawa : Entomological Society of Canada; 1985 Sep. The Canadian entomologist v. 117 (9): p. 1137-1142; 1985 Sep. Includes references. Language: English Descriptors: Glycine max; Genotypes; Pest resistance; Susceptibility; Nezara viridula; Parasites of insect pests; Telenomus; Ova 24 NAL Call. No.: 421 J822 Blister beetles on glandless cotton. Maxwell, F.G.; Lafever, H.N.; Jenkins, J.N. Lanham, Md. : Entomological Society of America; 1965 Aug. Journal of economic entomology v. 58 (4): p. 792-793. ill; 1965 Aug. Includes references. Language: English Descriptors: Mississippi; Gossypium; Lines; Plant glands; Susceptibility; Varietal resistance; Anthonomus grandis; Insect pests 25 NAL Call. No.: 421 J822 Boll weevil (Coleoptera: Curculionidae) nonpreference for primitive cotton. McCarty, J.C. Jr; Jones, J.E. Lanham, Md. : Entomological Society of America; 1989 Feb. Journal of economic entomology v. 82 (1): p. 298-300; 1989 Feb. Includes references. Language: English Descriptors: Louisiana; Gossypium hirsutum; Cultivars; Crop damage; Anthonomus grandis; Oviposition; Field tests; Laboratory tests Abstract: Oviposition resistance-nonpreference of boll weevils, Anthonomus grandis grandis Boheman, was measured on day-neutral (flowering response not sensitive to day-length) lines of primitive cotton, Gossypium hirsutum L. Six of nine lines (T-109DN, T-277-2-6DN, T-330DN, T-759DN, T-763DN, and T-790DN) had significantly less boll weevil oviposition and significantly fewer boll weevil-damaged squares than the susceptible checks, 'Stoneville 213,' and 'Deltapine 41,' or 'Deltapine 61' in both laboratory and field tests. The level of field resistance in these primitive cottons approximated that of the frego- nectariless resistant check, La.81-560FN. These primitive day- neutral-derived lines represent an important level and a previously unexploited source of resistance that can be used readily for germplasm enhancement of upland cotton. Their resistance was not attributed to any morphological trait. 26 NAL Call. No.: 64.8 C883 A boll weevil oviposition suppression factor in cotton. Buford, W.T.; Jenkins, J.N.; Maxwell, F.G. Madison, Wis. : Crop Science Society of America; 1968 Nov. Crop science v. 8 (6): p. 647-649; 1968 Nov. Includes references. Language: English Descriptors: Gossypium hirsutum; Gossypium barbadense; Pest resistance; Anthonomus grandis; Oviposition 27 NAL Call. No.: 100 L936 Bollworm-tobacco budworm resistant cotton. Calhoun, D.S.; Dickson, J.I.; Jones, J.E.; Leonard, B.R.; Burris, E.; Caldwell, W.D.; Moore, S.H.; Aguillard, W. Baton Rouge, La. : The Department; 1990. Report of projects - Louisiana Agricultural Experiment Station, Department of Agronomy. p. 1-10; 1990. Language: English Descriptors: Louisiana; Gossypium; Strain; Testing; Resistance; Helicoverpa; Zea; Heliothis virescens 28 NAL Call. No.: aZ5071.N3 Breeding and selecting crops for insect pest resistance January 1983-March 1989. MacLean, J.T. Beltsville, Md. : The Library; 1989 Jun. Quick bibliography series - U.S. Department of Agriculure, National Agricultural Library (U.S.). (89-75): 30 p.; 1989 Jun. Updates QB 88-21. Bibliography. Language: English Descriptors: Plant breeding; Insect pests; Pest resistance; Bibliographies 29 NAL Call. No.: SB327.A1B5 Breeding beans resistant to bruchids. Harmsen, R.; Bliss, F.A.; Osborn, T.C. Geneva, N.Y. : Bean Improvement Cooperative; 1987. Annual report of the Bean Improvement Cooperative v. 30: p. 44-45; 1987. Includes references. Language: English Descriptors: Phaseolus vulgaris; Breeding aims; Resistance; Acanthoscelides obtectus; Zabrotes subfasciatus; Hybridization; Wild plants; Breeding methods 30 NAL Call. No.: aZ5071.N3 Breeding crops for insect pest resistance, 1979-1987. MacLean, J.T. Beltsville, Md. : The Library; 1988 Feb. Quick bibliography series - National Agricultural Library (U.S.). (88-21): 28 p.; 1988 Feb. Bibliography. Language: English Descriptors: Plant breeding; Insect pests; Pest resistance 31 NAL Call. No.: QL461.I57 Breeding for host plant resistance to maize stem-borers. Mihm, J.A. Oxford, Eng. : Pergamon Press; 1985. Insect science and its application v. 6 (3): p. 369-377. ill; 1985. Includes references. Language: English Descriptors: Zea mays; Insect pests; Pest resistance; Selective breeding; Plant breeding 32 NAL Call. No.: SB123.P55 Breeding for insect resistance in maize. Guthrie, W.D. Portland, Or. : Timber Press; 1989. Plant breeding reviews v. 6: p. 209-243; 1989. Literature review. Includes references. Language: English Descriptors: Zea mays; Breeding aims; Pest resistance; Insect pests; Breeding programs; Breeding methods; Genetics; Greenhouse experimentation; Plant damage; Laboratory rearing 33 NAL Call. No.: SB608.M2I57 1987 Breeding for multiple resistance to temperate, subtropical, and tropical maize insect pests at CIMMYT. Smith, M.E.; Mihm, J.A.; Jewell, D.C. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 222-234; 1987. Includes references. Language: English Descriptors: Mexico; Zea mays; Breeding programs; Selection criteria; Resistance; Insect pests; Temperate Zones; Subtropics; Tropical Zones; Resistance mechanisms; Inheritance; Breeding methods; Germplasm releases; International cooperation; Testing; Evaluation; Varieties; Hybrids 34 NAL Call. No.: SB608.M2I57 1987 Breeding for resistance in maize to southwestern corn borer and fall armyworm. Williams, W.P.; Davis, F.M. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 207-210; 1987. Includes references. Language: English Descriptors: Mississippi; Zea mays; Plant breeding; Selection criteria; Resistance; Diatraea grandiosella; Spodoptera frugiperda; Breeding methods 35 NAL Call. No.: SB608.M2I57 1987 Breeding for resistance to European corn borer. Gracen, V.E. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 203-206; 1987. Includes references. Language: English Descriptors: New York; Zea mays; Breeding methods; Selection; Techniques; Resistance; Ostrinia nubilalis; Diatraea; Species; Disease resistance; Colletotrichum graminicola 36 NAL Call. No.: QL461.I57 Breeding for resistance to shootfly and stem-borer in sorghum. Kishore, P. Oxford, Eng. : Pergamon Press; 1986. Insect science and its application v. 7 (1): p. 117-121; 1986. Includes references. Language: English Descriptors: Sorghum; Chilo partellus; Atherigona soccata; Pest resistance; Plant breeding 37 NAL Call. No.: SB933.3.I5 Breeding for resistance to whiteflies in tomatoes--in relation to integrated pest control in greenhouses. Berlinger, M.J.; Dahan, R.; Shevach-urkin, E. Wageningen : The Section; 1983. Bulletin SROP - International Organization for Biological Control of Noxious Animals and Plants, West Palaearctic Regional Section v. 6 (3): p. 172-176; 1983. In the series analytic: Working group, Integrated control in glasshouses = Groupe de travail lutte integree en cultures sous verre / edited by N.W. Hussey. Includes references. Language: English Descriptors: Greenhouse crops; Lycopersicon esculentum; Breeding aims; Resistance; Insect pests; Trialeurodes vaporariorum; Integrated pest management; Breeding methods 38 NAL Call. No.: SB608.M2I57 1987 Breeding methodologies and genetic basis of resistance in maize to the European corn borer. Guthrie, W.D.; Russell, W.A. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 192-202; 1987. Includes references. Language: English Descriptors: Zea mays; Plant breeding; Genetic control; Resistance; Ostrinia nubilalis; Breeding methods 39 NAL Call. No.: 34.2 AN4 Breeding methodologies for disease and pest resistance in groundnut [Arachis hypogaea L.]. Reddi, M.V. Bapatla : Andhra Agricultural Union; 1984 Jul. The Andhra agricultural journal v. 31 (3): p. 173-183; 1984 Jul. Includes references. Language: English Descriptors: Andhra pradesh; Arachis hypogaea; Cultivars; Plant breeding; Disease resistance; Pest resistance; Crop yield; Ecological balance 40 NAL Call. No.: SB608.M2I57 1987 Breeding methodology to increase resistance in maize to corn earworm, fall armyworm, and maize weevil. Widstrom, N.W. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 211-221; 1987. Includes references. Language: English Descriptors: Zea mays; Breeding methods; Selection criteria; Resistance; Helicoverpa zea; Spodoptera frugiperda; Sitophilus zeamais; General combining ability; Specific combining ability 41 NAL Call. No.: QL461.I57 Breeding sorghum for resistance to insects in eastern Africa. Gebrekidan, B. Oxford, Eng. : Pergamon Press; 1985. Insect science and its application v. 6 (3): p. 351-357; 1985. Includes references. Language: English Descriptors: Africa; Sorghum bicolor; Atherigona soccata; Stored products pests; Pest resistance; Plant breeding 42 NAL Call. No.: SB183.F5 Breeding upland cotton for resistance to the tarnished plant bug. Milam, M.R.; Jenkins, J.N.; McCarty, J.C. Jr; Parrott, W.L. Amsterdam : Elsevier Scientific Publishing Company; 1989 Jul15. Field crops research v. 21 (3/4): p. 227-238; 1989 Jul15. Includes references. Language: English Descriptors: Gossypium hirsutum; Strains; Resistance; Lygus lineolaris; Genetic control; Progeny; Selection; Yield losses 43 NAL Call. No.: 64.8 C883 Changes in agronomic traits associated with recurrent selection in two maize synthetics. Nyhus, K.A.; Russell, W.A.; Guthrie, W.D. Madison, Wis. : Crop Science Society of America; 1989 Mar. Crop science v. 29 (2): p. 269-275; 1989 Mar. Includes references. Language: English Descriptors: Iowa; Zea mays; Recurrent selection; Synthetic varieties; Pest resistance; Ostrinia nubilalis; Diplodia maydis; Disease resistance; Crosses; Crop yield; Grain; Yield losses; Yield components; Ears (plant); Pollen; Inbreeding depression Abstract: The agronomic performance of two maize (Zea mays L.) synthetics, BSAA and BSBB, was investigated following four cycles of S1 recurrent selection for resistance to first-generation European corn borer (Ostrinia nubilalis Hubner) (ECB) and Diplodia (Diplodia maydis (Berk.) Sacc.) stalk rot (DSR). The original and four improved cycle populations (C0-C4), their crosses to a single-cross tester, crosses between synthetics, and three single-cross checks were evaluated in five Iowa environments. Artificial infestations of ECB and inoculations of D. maydis were used to assess the ability of genetic resistance to reduce yield losses. Highly significant grain yield reductions were observed in both synthetics per se and averaged 20% from the C0 to the C4 in the absence of disease or insects pressure. Ear length was the main component contributing to grain yield reductions. Changes toward earlier pollen date were closely associated with reductions in plant height observed in both synthetics. The level of resistance achieved in the improved populations of BSBB was sufficient to prevent grain yield losses caused by ECB infestations and D. maydis inoculations relative to a control treatment. Additional genetic studies suggested that the response of most of the agronomic traits evaluated was associated with allelic frequency changes resulting from selection. Inbreeding depression caused by random genetic drift played a small role in most traits, with the exception of grain yield in BSBB. 44 NAL Call. No.: QL461.I57 Chilo partellus (Swinhoe) oviposition on susceptible and resistant maize genotypes. Ampofo, J.K.O. Oxford, Eng. : Pergamon Press; 1985. Insect science and its application v. 6 (3): p. 323-330. ill; 1985. Includes references. Language: English Descriptors: Zea mays; Chilo partellus; Pest resistance; Genotypes; Trichomes; Oviposition; Exudates 45 NAL Call. No.: QL461.E532 Chinch-bug (Heteroptera: Lygaeidae) reproduction, development, and feeding preference on various wheat cultivars and genetics sources. Stuart, J.; Wilde, G.; Hatchett, J.H. College Park, Md. : Entomological Society of America; 1985 Aug. Environmental entomology v. 14 (4): p. 539-543; 1985 Aug. Includes references. Language: English Descriptors: Triticum aestivum; Cultivars; Pest resistance; Blissus leucopterus; Feeding habits; Reproduction; Longevity; Mortality 46 NAL Call. No.: QH431.G452 Chromosomal location in common wheat of a gene (Cmc1) from Aegilops squarrosa that conditions resistance to colonization by the wheat curl mite. Whelan, E.D.P.; Thomas, J.B. Ottawa : National Research Council of Canada; 1989 Dec. Genome v. 32 (6): p. 1033-1036; 1989 Dec. Includes references. Language: English Descriptors: Triticum aestivum; Genes; Wheat streak mosaic virus; Eriophyes; Pest resistance; Chromosomes; Disease vectors; Aegilops squarrosa 47 NAL Call. No.: 442.8 AM3 Chromosomal mapping of Hessian fly-resistance gene H13 in the D genome of wheat. Gill, B.S.; Hatchett, J.H.; Raupp, W.J. Washington, D.C. : American Genetic Association; 1987 Mar. The Journal of heredity v. 78 (2): p. 97-100. ill; 1987 Mar. Includes references. Language: English Descriptors: Triticum aestivum; Mayetiola destructor; Pest resistance; Aegilops squarrosa; Chromosome maps; Gene location; Gene mapping; Genome analysis; Telocentrics 48 NAL Call. No.: 64.8 C883 Combining ability for resistance in corn to fall armyworm and southwestern corn borer. Williams, W.P.; Buckley, P.M.; Davis, F.M. Madison, Wis. : Crop Science Society of America; 1989 Jul. Crop science v. 29 (4): p. 913-915; 1989 Jul. Includes references. Language: English Descriptors: Mississippi; Zea mays; Inbred lines; Pest resistance; Larvae; Spodoptera frugiperda; Diatraea grandiosella; Inheritance of acquired characters; Line crosses; General combining ability; Specific combining ability; Diallel crossing; Hybrids; Genetic variation Abstract: Both the fall armyworm, Spodoptera frugiperda (J.E. Smith), and the southwestern corn borer, Diatraea grandiosella Dyar, feed extensively on the leaves of corn, Zea mays L., in the southern USA. Their feeding can cause serious yield reductions. Several germplasm lines with resistance to leaf feeding by these two insect pests have been developed and released; however, only limited information is available on the inheritance of this resistance. No previous information on the relationships between resistance to fall armyworm and southwestern corn borer has been reported. The current investigation was undertaken to obtain information on the relative importance of general and specific combining ability in the inheritance of resistance to fall armyworms and southwestern corn borers and to compare the responses of the two insects to a diallel cross among inbred lines with varying degrees of resistance. Larval survival and growth were used to quantify levels of resistance. General combining ability was a highly significant source of variation among hybrids, but specific combining ability was a nonsignificant source of variation. Fall armyworm larval survival and weight on hybrids with varying levels of resistance were highly correlated with southwestern corn borer survival and weight on the same hybrids. This suggests that selecting for resistance to one of these insects should increase resistance to both. 49 NAL Call. No.: QL461.I57 Combining ability for stem borer, Chilo partellus (Swinhoe) resistance in sorghum. Singh, S.P.; Verma, A.N. Oxford : Pergamon Press; 1988. Insect science and its application v. 9 (5): p. 665-668; 1988. Includes references. Language: English Descriptors: Haryana; Sorghum bicolor; Genotypes; Chilo partellus; Pest resistance; Crosses; Combining ability; Plant damage; Genes; Plant breeding; Genetic control; Inheritance 50 NAL Call. No.: 421 EN895 Comparative constitutive resistance in soybean lines to Mexican bean beetle. Chiang, H.S.; Norris, D.M.; Ciepiela, A.; Oosterwyk, A.; Shapiro, P.; Jackson, M. Dordrecht : Dr W. Junk Publishers; 1986 Sep. Entomologia experimentalis et applicata v. 42 (1): p. 19-26; 1986 Sep. Includes references. Language: English Descriptors: Glycine max; Antifeedants; Pest resistance; Varieties; Epilachna varivestis 51 NAL Call. No.: QL461.E532 Comparative development of Copidosoma truncatellum (Hymenoptera: Encyrtidae) and its host, Pseudoplusia includens (Lepidoptera: Noctuidae), on resistant and susceptible soybean genotypes. Orr, D.B.; Boethel, D.J. College Park, Md. : Entomological Society of America; 1985 Oct. Environmental entomology v. 14 (5): p. 612-613; 1985 Oct. Includes references. Language: English Descriptors: Glycine max; Pest resistance; Genotypes; Pseudoplusia includens; Parasites of insect pests; Copidosoma truncatellum; Development 52 NAL Call. No.: 421 J822 The comparative preference of insects for glanded and glandless cottons. Jenkins, J.N.; Maxwell, F.G.; Lafever, H.N. Lanham, Md. : Entomological Society of America; 1966 Apr. Journal of economic entomology v. 59 (2): p. 352-256; 1966 Apr. Includes references. Language: English Descriptors: Mississippi; Gossypium; Lines; Plant glands; Pest resistance; Crop damage; Feeding preferences; Helicoverpa zea; Alabama argillacea; Chrysomelidae; Colaspis; Incidence 53 NAL Call. No.: 421 J822 Comparison of bermudagrass lines grown in different cultural conditions and the effect on screening for fall armyworm (Lepidoptera: Noctuidae) resistance. Jamjanya, T.; Quisenberry, S.S.; Croughan, S.S.; Story, R.N. Lanham, Md. : Entomological Society of America; 1990 Apr. Journal of economic entomology v. 83 (2): p. 585-590; 1990 Apr. Includes references. Language: English Descriptors: Louisiana; Cynodon dactylon; Lines; Mortality; Pest resistance; Screening; Spodoptera frugiperda; Development; Field experimentation; Greenhouse experimentation; Survival; Crop quality; Crude protein; Growth Abstract: A study was conducted to investigate the effects of different cultural conditions on the quality of bermudagrass, Cynodon dactylon (L.) Pers., and its effect on the development and survival of the fall armyworm, Spodoptera frugiperda (J. E. Smith). Fall armyworm larvae were fed four bermudagrass lines, 'Coastal', 'Grazer,' 'Tifton 292,' and OSU 71 x 6-7, grown under field and greenhouse conditions. Grasses grown in the field were less favorable for fall armyworm development and survival than the same lines grown in the greenhouse. Larvae fed bermudagrasses grown in the greenhouse had significantly higher larval and pupal weights and decreased duration for larval development. The quality of field-grown grasses, as indicated by crude protein, neutral detergent fiber, and in vitro digestible dry matter, was lower and declined more from June to September than the same grasses grown in the greenhouse. Larvae fed either greenhouse- or field-grown 'Grazer' generally developed faster than larvae reared on the other bermudagrass lines we evaluated. 'Tifton 292' appeared resistant to fall armyworm when grown under greenhouse but did not always differ significantly from the susceptible line, 'Grazer,' when grown under field conditions. Greenhouse screening of bermudagrass for fall armyworm resistance should be confirmed with field evaluations. 54 NAL Call. No.: 421 J822 Comparison of immature sorghum midge (Diptera: Cecidomyiidae) development on resistant and susceptible sorghums. Waquil, J.M.; Teetes, G.L.; Peterson, G.C. College Park, Md. : Entomological Society of America; 1986 Jun. Journal of economic entomology v. 79 (3): p. 833-837; 1986 Jun. Includes references. Language: English Descriptors: Texas; Sorghum bicolor; Hybrids; Pest resistance; Contarinia sorghicola; Larvae; Pupae; Crop damage 55 NAL Call. No.: 64.8 C883 Comparison of mite resistance for control of wheat streak mosaic. Conner, R.L.; Thomas, J.B.; Whelan, E.D.P. Madison, Wis. : Crop Science Society of America; 1991 Mar. Crop science v. 31 (2): p. 315-318; 1991 Mar. Includes references. Language: English Descriptors: Aceria tulipae; Triticum aestivum; Secale cereale; Elymus elongatus; Aegilops squarrosa; Wheat streak mosaic virus; Pest resistance; Genetic resistance; Genes; Substitution lines; Addition lines; Translocation lines; Line differences; Cultivars; Plant breeding; Plant disease control; Vectors; Feeding behavior Abstract: The wheat curl mite (Eriophyes [Aceria] tulipae Keifer) is the vector of wheat streak mosaic virus (WSMV), which incites wheat streak mosaic (WSM), a disease that causes serious yield losses in winter wheat (Triticum aestivum L. em. Thell.). Several sources of resistance to mite colonization have been identified. Our objective was to determine the relative effectiveness of four sources of mite resistance in controlling the spread of WSMV. A series of controlled environmental tests showed that the incidence of WSMV tended to be lowest in 'Rescue'-Agropyron elongatum (Host) P. Beauv. chromosome substitution, addition, or translocation lines involving Chromosome 6 from A. elongatum. Disease incidence was significantly lower in the wheat-rye (Secale cereale L.) translocation line KS80H4200 and in the 'Norstar'-Aegilops squarrosa L. backcross line NST 4/CMC1 than in the mite- susceptible wheat cultivars Norstar and Rescue. The incidence of WSM was usually higher in the cultivar TAM 107, which carries a wheat-rye translocation, than in other mite-resistant entries and was not always significantly different from the mite-susceptible winter wheat Norstar, even though TAM 107 reduced the incidence of symptoms of mite feeding. All entries tested were highly susceptible to WSMV when mechanically inoculated. In the field, following a light natural infestation of the wheat curl mite, lines from the cross NST 4/CMC1 contained 40% fewer WSMV-infected plants than lines without mite resistance. This study demonstrated that the mite resistance derived from A. elongatum was more effective in limiting the spread of WSM than was mite resistance originating from either rye or Ae. squarrosa. 56 NAL Call. No.: 421 J822 Comparison of oilseed Brassica crops with high or low levels of glucosinolates and alfalfa as hosts for three species of Lygus (Hemiptera: Heteroptera: Miridae). Butts, R.A.; Lamb, R.J. Lanham, Md. : Entomological Society of America; 1990 Dec. Journal of economic entomology v. 83 (6): p. 2258-2262; 1990 Dec. Includes references. Language: English Descriptors: Alberta; Brassica campestris; Brassica napus; Cultivars; Pest resistance; Lygus; Lygus elisus; Lygus lineolaris Abstract: The suitability of oilseed rapes, Brassica spp., and alfalfa, Medicago sativa L., as host plants for Lygus spp. is compared. Lygus bugs were monitored in field plots of five cultivars of oilseed rape, Brassica napus L. and Brassica campestris L., containing high or low levels of glucosinolates. The number of lygus collected did not differ among cultivars of the same species. Nymphs reared in the laboratory on the five cultivars had the same survival and developmental rate regardless of the glucosinolate status of the cultivar. Survival, development, and growth were compared for nymphs reared on excised stem tips of oilseed rape and alfalfa that had flower buds or flowers. Nymphs developed faster and had higher survival when reared on oilseed rape than when reared on alfalfa. However, the dry weights of adults collected from an alfalfa field were significantly higher than those reared on alfalfa in the laboratory, indicating that excised alfalfa may not be as good a source of food for conducting laboratory tests as excised oilseed rape. Adult weights of field-collected lygus bugs from alfalfa and oilseed rape did not differ significantly. The results demonstrate that oilseed rapes with high or low levels of glucosinolates are both suitable hosts for the three species of lygus, and as suitable as alfalfa. Furthermore, the change from the older high-glucosinolate rape cultivars to the low- glucosinolate cultivars that are now widely grown probably had no effect on the suitability of the crop for lygus bugs. 57 NAL Call. No.: QL461.E532 A comparison of plant parameters and soluble carbohydrates of resistanta and susceptible wheat infested with biotype E Hessian flies (Diptera: Cecidomyiidae). Wellso, S.G.; Hoxie, R.P.; Taylor, P.L. Lanham, Md. : Entomological Society of America; 1990 Dec. Environmental entomology v. 19 (6): p. 1698-1701; 1990 Dec. Includes references. Language: English Descriptors: Triticum aestivum; Mayetiola destructor; Pest resistance; Carbohydrates Abstract: Experiments were conducted to determine the effect of Hessian fly, Mayetiola destructor (Say), larval feeding on one susceptible and two resistant wheat, Triticum aestivum L. em Thell., cultivars. The stem number, plant and crown weights, and soluble crown carbohydrates were measured in susceptible 'Monon' (with the H3 gene) and resistant 'Abe' (H3 gene) and 'Caldwell' (H6 gene) wheat infested with biotype E Hessian fly larvae. All plant variables were significantly different between infested and control 'Monon' wheat, and no significant difference in plant variables was detected in the resistant wheats 4 wk after infestation. Of the four carbohydrates analyzed, only fructan in 'Monon,' and fructose in 'Abe' differed significantly between the two treatments. These data support the use of resistant genes in plants to control the Hessian fly, in that essentially no damage was observed in the resistant wheat, whereas susceptible 'Monon' was damaged severely. 58 NAL Call. No.: QL461.E532 Comparison of pod-wall characteristics with seed damage and resistance to the alfalfa seed chalcid (Hymenoptera: Eurytomidae) in Medicago species. Springer, T.L.; Kindler, S.D.; Sorensen, E.L. Lanham, Md. : Entomological Society of America; 1990 Oct. Environmental entomology v. 19 (5): p. 1614-1617; 1990 Oct. Includes references. Language: English Descriptors: Oklahoma; Medicago sativa; Seeds; Bruchophagus roddi; Pest resistance; Interspecific hybridization 59 NAL Call. No.: 421 J822 Comparison of swellings caused by indoleacetic acid and tuberosities induced by grape phylloxera (Homoptera: Phylloxeridae). Granett, J. Lanham, Md. : Entomological Society of America; 1990 Apr. Journal of economic entomology v. 83 (2): p. 494-499; 1990 Apr. Includes references. Language: English Descriptors: Vitis vinifera; Biotypes; Cultivars; Hybrids; Pest resistance; Susceptibility; Swelling; Iaa; Crop damage; Hemiptera Abstract: Indoleacetic acid applied to root pieces of grade cultivars resistant and susceptible to grape phylloxera, Daktulosphaira vitifoliae Fitch, induced production of swellings and rootlet branches. Effects increased with concentration of indoleacetic acid. Root sensitivity to indoleacetic acid was not greater in susceptible cultivars and does not appear to be a prime mechanism of the host plant resistance to grape phylloxera. Phylloxera did not preferentially establish on swellings induced by indoleacetic acid, but did on preformed grape phylloxera tuberosities. Thus, swellings caused by indoleacetic acid are not identical to grape phylloxera tuberosities. 60 NAL Call. No.: 442.8 AN72 A comparison of the level of resistance in diploid Triticum monococcum and hexaploid Triticum aestivum wheat seedlings to the aphids Metopolophium dirhodum and Rhopalosiphum padi. Spiller, N.J.; Llewellyn, M. Warwick : Association of Applied Biologists; 1986 Aug. Annals of applied biology v. 109 (1): p. 173-177; 1986 Aug. Includes references. Language: English Descriptors: Triticum monococcum; Triticum aestivum; Diploidy; Hexaploidy; Pest resistance; Metopolophium dirhodum; Rhopalosiphum padi 61 NAL Call. No.: 421 J822 Comparison of three techniques to evaluate advanced breeding lines of soybean for leaf-feeding resistance to corn earworm (Lepidoptera: Noctuidae). Hart, S.V.; Burton, J.W.; Campbell, W.V. College Park, Md. : Entomological Society of America; 1988 Apr. Journal of economic entomology v. 81 (2): p. 615-620; 1988 Apr. Includes references. Language: English Descriptors: North Carolina; Glycine max; Crop damage; Lines; Pest resistance; Heliothis zea; Larvae; Screening 62 NAL Call. No.: 442.8 Z8 Complementarity of genes for resistance to greenbug [Schizaphis graminum (Rondani)], biotype E, in sorghum [Sorghum bicolor (L.) Moench]. Dixon, A.G.O.; Bramel-Cox, P.J.; Harvey, T.L. Berlin, W. Ger. : Springer International; 1991. Theoretical and applied genetics v. 81 (1): p. 105-110; 1991. Includes references. Language: English Descriptors: Sorghum bicolor; Schizaphis graminum; Genes; Complementation; Pest resistance; Biotypes; Segregation; Epistasis; Inbred lines 63 NAL Call. No.: 442.8 AN72 The complementary effects of plant resistance and the choice of sowing and harvest times in reducing carrot fly (Psila rosae) damage to carrots. Ellis, P.R.; Hardman, J.A.; Cole, R.A.; Phelps, K. Warwick : Association of Applied Biologists; 1987 Oct. Annals of applied biology v. 111 (2): p. 415-424; 1987 Oct. Includes references. Language: English Descriptors: Daucus carota; Disease resistance; Sowing date; Harvest date; Cultivars; Psila rosae; Crop damage 64 NAL Call. No.: 421 J822 Components of resistance in three bread wheat lines to Russian wheat aphid (Homoptera: Aphididae) in South Africa. Du Toit, F. Lanham, Md. : Entomological Society of America; 1989 Dec. Journal of economic entomology v. 82 (6): p. 1779-1781; 1989 Dec. Includes references. Language: English Descriptors: South Africa; Triticum aestivum; Genotypes; Lines; Pest resistance; Hemiptera; Nymphs Abstract: Studies were done to determine the level of antibiosis and tolerance in three resistant wheat, Triticum aestivum L., lines, PI 262660, PI 137739, and PI 294994, to Diuraphis noxia (Mordvilko), a serious pest of wheat in South Africa. Nymphal production was lowest on PI 262660, followed by PI 137739 and PI 294994. The mean production of nymphs per adult aphid over 21 d on PI 262660, PI 137739, and PI 294994 was, respectively, 40.0, 55.1, and 66.9% of that on the susceptible cv. Betta. In the tolerance test, the plant height and dry mass of PI 262660 were significantly less affected than other entries. PI 137739 and PI 294994 were as severely affected as the susceptible entries. 65 NAL Call. No.: SB123.P535 Confirmation of a 1A/1R wheat-rye chromosome translocation in the wheat variety 'Amigo'. Schlegel, R.; Kynast, R. Berlin, W. Ger. : Paul Parey; 1987 Feb. Plant breeding; Zeitschrift fur Pflanzenzuchtung v. 98 (1): p. 57-60. ill; 1987 Feb. Includes references. Language: English Descriptors: Triticum; Triticale; Crosses; Varieties; Chromosome translocation; Secale cereale; Chromatin; Breeding aims; Resistance; Schizaphis graminum; Sitobion avenae 66 NAL Call. No.: QD1.A45 Consequences of modifying biochemically mediated insect resistance in Lycopersicon species. Kennedy, G.G. Washington, D.C. : The Society; 1986. ACS Symposium series - American Chemical Society (296): p. 130-141; 1986. Includes 37 references. Language: English Descriptors: Lycopersicon esculentum; Insecticidal properties; Pest resistance; Plant breeding; Cultivars; Crop sensitivity 67 NAL Call. No.: 421 J822 Corn earworm: use of larval traps on corn ears as a method of evaluating corn lines for resistance. Straub, R.W.; Fairchild, M.L.; Keaster, A.J. College Park, Md. : Entomological Society of America; 1973 Aug. Journal of economic entomology v. 66 (4): p. 989-990. ill; 1973 Aug. Includes references. Language: English Descriptors: Missouri; Zea mays; Lines; Varieties; Heliothis zea; Insect traps; Larvae; Pest resistance 68 NAL Call. No.: SB975.A44 Corn pest management. Hudon, M.; Ogilvie, I. Ottawa : University of Ottawa Press; 1984. The Role of biological control in pest management / George Allen & Alejandro Rada. p. 98-102; 1984. Paper presented at the "International Symposium on Biological Control in Agriculture," Nov 16/20, 1981, Santiago, Chile. Language: English Descriptors: Canada; Zea mays; Plant breeding; Pest resistance; Disease resistance; Ostrinia nubilalis; Inbred lines; Diabrotica longicornis; Integrated pest management; Gibberella zeae; Kabatiella zeae; Trichogramma 69 NAL Call. No.: SB608.M2I57 1987 Corn rootworm rearing methodologies. Campbell, J.E.; Jackson, J.J. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 60-66. ill; 1987. Includes references. Language: English Descriptors: Zea mays; Breeding programs; Resistance; Insect pests; Diabrotica; Species; Mass rearing; Techniques 70 NAL Call. No.: 421 J822 Correlation between leaf-feeding resistance to European corn borer (Lepidoptera: Pyralidae) and resistance to northern corn leaf blight. Guthrie, W.D.; Barry, B.D.; Rossman, E.C.; Jarvis, J.L. College Park, Md. : Entomological Society of America; 1985 Aug. Journal of economic entomology v. 78 (4): p. 811-814. ill; 1985 Aug. Includes references. Language: English Descriptors: Zea mays; Genotypes; Pest resistance; Ostrinia nubilalis; Setosphaeria turcica 71 NAL Call. No.: QL461.I57 Cotton insect resistance studies in the western cotton growing area of Tanzania. Nyambo, B.T. Oxford, Eng. : Pergamon Press; 1985. Insect science and its application v. 6 (3): p. 379-384; 1985. Includes references. Language: English Descriptors: Tanzania; Gossypium; Heliothis armigera; Pest resistance; Plant breeding; Selective breeding 72 NAL Call. No.: SB249.N6 Cotton leaf pubescence and relationship to leafhopper and sweetpotato whitefly populations. Fishler, G.; Butler, G.D. Jr; Wilson, F.D. Memphis, Tenn. : National Cotton Council and The Cotton Foundation; 1988. Proceedings - Beltwide Cotton Production Research Conferences. p. 301-302; 1988. Conference held on January 3-8, 1988, New Orleans, Louisiana. Includes abstract. Language: English Descriptors: Gossypium; Breeding aims; Resistance; Insect pests; Empoasca; Bemisia tabaci; Leaf hairs 73 NAL Call. No.: A00069 Crop Genetics Inc. reports success against corn pest. Gladwell, M. Washington, D.C. : The Washington Post Co; 1989 Nov20. The Washington post. p. 5-6; 1989 Nov20. Language: English Descriptors: Zea mays; Pest resistance; Bacillus thuringiensis; Lepidoptera; Genetic engineering 74 NAL Call. No.: S1.S68 Cytoplasmic male sterility of M, T, and C types and resistance of corn to first-brood European corn borer. Frolov, A.N.; Khromenko, A.S.; Chuchmii, I.P.; Gorbacheva, A.G. New York, N.Y. : Allerton Press; 1989. Soviet agricultural sciences (1): p. 16-19; 1989. Translated from: Vsesoiuznaia akademiia sel'skokhoziaistvennykh nauk, Doklady, (1), 1989, p. 11-14. (20 AK1). Includes references. Language: English; Russian Descriptors: Ussr; Zea mays; Ostrinia nubilalis; Boring insects; Cytoplasmic male sterility; Susceptibility; Genotypes; Line differences; Insect control; Survival; Plant damage 75 NAL Call. No.: SB950.A1P3 Damage assessment and yield losses in sorghum due to the stem borer Busseola fusca (Fuller) (Lepidoptera: Noctuidae) in northern Nigeria. MacFarlane, J.H. London : Taylor & Francis; 1990 Apr. Tropical pest management v. 36 (2): p. 131-137; 1990 Apr. Includes references. Language: English Descriptors: Nigeria; Sorghum; Cultivars; Pest resistance; Varietal susceptibility; Busseola fusca; Stems; Plant damage; Assessment; Rating scales; Crop yield; Yield losses; Grain; Seed weight; Boring insects; Crop loss 76 NAL Call. No.: SB950.A1P3 Damage by southwestern corn borer (Diatraea grandiosella Dyar) on resistant and susceptible maize at three plant growth stages in Mexico. Maredia, K.M.; Mihm, J.A. London : Taylor & Francis; 1990 Apr. Tropical pest management v. 36 (2): p. 141-144; 1990 Apr. Includes references. Language: English Descriptors: Mexico; Zea mays; Varieties; Varietal susceptibility; Pest resistance; Crop growth stage; Diatraea grandiosella; Larvae; Plant damage; Crop yield; Yield losses; Boring insects; Stems 77 NAL Call. No.: 1 Ag84Te no.1160 Dent corn inbreds and hybrids resistant to the corn earworm in the South. Douglas, W. A.; Eckhardt, R. C. Washington : U.S. Dept. of Agriculture; 1957; A 1.36-1160. 13 p. : ill. ; 23 cm. (Technical bulletin / United States Department of Agriculture ; no. 1160). Literature cited: p. 13. Language: English; English Descriptors: Corn--Disease and pest resistance--Genetic aspects; Heliothis zea 78 NAL Call. No.: 421 J822 Designation of two new greenbug (Homoptera: Aphididae) biotypes G and H. Puterka, G.J.; Peters, D.C.; Kerns, D.L.; Slosser, J.E.; Bush, L.; Worrall, D.W.; McNew, R.W. Lanham, Md. : Entomological Society of America; 1988 Dec. Journal of economic entomology v. 81 (6): p. 1754-1759; 1988 Dec. Includes references. Language: English Descriptors: Oklahoma; Texas; Cereals; Varieties; Pest resistance; Plant damage; Schizaphis graminum; Biotypes 79 NAL Call. No.: 64.8 C883 Designations for genes in wheat gerplasm conferring greenbug resistance. Tyler, J.M.; Webster, J.A.; Merkle, O.G. Madison, Wis. : Crop Science Society of America; 1987 May. Crop science v. 27 (3): p. 526-527; 1987 May. Includes references. Language: English Descriptors: Triticum aestivum; Schizaphis graminum; Biotypes; Pest resistance; Genes; Germplasm; Gene symbols 80 NAL Call. No.: SB249.N6 Detecting boll weevil resistance in converted cotton race stocks by sampling single plants. Bates, S.L.; Walker, J.K.; Smith, C.W. Memphis, Tenn. : National Cotton Council and The Cotton Foundation; 1988. Proceedings - Beltwide Cotton Production Research Conferences. p. 552-553; 1988. Conference held on January 3-8, 1988, New Orleans, Louisiana. Includes references. Language: English Descriptors: Gossypium; Genotypes; Resistance; Anthonomus grandis; Breeding aims 81 NAL Call. No.: 421 J822 Detection and mechanisms of Russian wheat aphid (Homoptera: Aphididae) resistance in barley. Webster, J.A.; Baker, C.A.; Porter, D.R. Lanham, Md. : Entomological Society of America; 1991 Apr. Journal of economic entomology v. 84 (2): p. 669-673; 1991 Apr. Includes references. Language: English Descriptors: Hordeum vulgare; Germplasm; Lines; Pest resistance; Screening; Seedlings; Crop damage; Diuraphis noxia Abstract: A collection of 524 barley lines from areas of the world where the Russian wheat aphid, Diuraphis noxia (Mordvilko) and barley, Hordeum vulgare L., have coexisted was evaluated for sympatric resistance to this pest. Mass screening tests were conducted in a growth chamber and greenhouse with seedlings planted in flats. Additional tests to determine the mechanisms of resistance were performed with nine of these lines. The lines and their sources are PI 366444, PI 366447, PI 366449, PI 366450, PI 366453 (Afghanistan); CI 1412, PI 4.30140, PI 430142 (Iran); and PI 447219 (Spain). Various levels of antibiosis and tolerance were exhibited in most of the lines tested in comparison with 'Wintermalt' (CI 15767), the susceptible control. For example, in the antibiosis test, an average of 27.3 nymphs per adult were produced on PI 366449 compared with 50.0 on 'Wintermalt'. In the tolerance test, plant growth and leaf area of some of the resistant entries were not affected by the Russian wheat aphid, whereas growth and leaf area of infested 'Wintermalt' plants was only 61% of noninfested 'Wintermalt' plants. Plant survivors of these tests have been saved for developing Russian wheat aphid plant-resistant germplasm for the North American barley industry. 82 NAL Call. No.: QL461.M5 Determination of frequency and distribution of Hessian fly (Diptera: Cecidomyiidae) biotypes in the northeastern soft wheat region. Chen, B.H.; Foster, J.E.; Taylor, P.L.; Araya, J.E.; Kudagamage, C. East Lansing, Mich. : Michigan Entomological Society; 1990. The Great Lakes entomologist v. 23 (4): p. 217-221; 1990. Includes references. Language: English Descriptors: Illinois; Indiana; Michigan; New York; Ohio; Triticum aestivum; Mayetiola destructor; Biotypes; Cultivars; Genetic variation; Genetic resistance; Virulence; Geographical distribution; Pest resistance; Varietal resistance 83 NAL Call. No.: QD1.A45 Developing research trends in the chemistry of plant resistance to pests. Hedin, P.A. Washington, D.C. : The Society; 1986. ACS Symposium series - American Chemical Society (296): p. 2-14; 1986. Includes 41 references. Language: English Descriptors: Pest resistance; Crops; Varieties; Plant breeding; Phytoalexins; Pesticides 84 NAL Call. No.: 421 J822 Development and antibiosis of released soybean germplasm lines resistant to Mexican bean beetle (Coleoptera: Coccinellidae). Hammond, R.B.; Cooper, R.L. Lanham, Md. : Entomological Society of America; 1989 Feb. Journal of economic entomology v. 82 (1): p. 259-263; 1989 Feb. Includes references. Language: English Descriptors: Ohio; Glycine max; Cultivars; Germplasm; High yielding varieties; Lines; Pest resistance; Epilachna varivestis; Larvae; Mortality; Survival Abstract: Four soybean (Glycine max (L.) Merr.) germplasm lines resistant to Mexican bean beetle, Epilachna varivestis Mulsant, were developed and released. These lines, 'HC83-123-9,' 'HC83-46-1,' HC83-46-2,' and 'HC83-50-1,' are from the cross 'Pixie' x 'PI 229358' and carry resistance (antibiosis) levels nearly equal to the resistant parent, 'PI 229358.' They were developed by the pedigree breeding procedure, using a systematic laboratory bioassay with Mexican bean beetle larvae to identify resistant plants in each generation. Survival and development of Mexican bean beetle larvae on these lines were similar to that on 'PI 229358.' Larval mortality for each line was 97.3, 90.7, 90.0, and 84.0%, respectively, compared with 27.2 and 98.0% for 'Pixie' (a susceptible control) and 'PI 229358,' respectively. More than half the larval mortality occurred during the first and second stadia. These lines also showed resistance to another soybean defoliator; field screening against defoliation by Japanese beetle, Popillia japonica Newman, confirmed the high levels of resistance of these four lines, with defoliation ratings less than or equal to 2 for all four lines compared with the susceptible cultivar, 'Pixie,' which had a rating of 5 (scale 0-5). The resistant lines are determinate plant types of mid-to-late group IV maturity. Because of their earlier maturity (compared with the PIs) and high level of resistance (antibiosis), these lines should be a useful source of resistance for the development of high-yielding soybean cultivars with resistance to the Mexican bean beetle and other soybean defoliator. 85 NAL Call. No.: QL461.E532 Development of alfalfa weevil (Coleoptera: Curculionidae) larvae when reared on perennial glandular-haired Medicago species in the greenhouse. Danielson, S.D.; Manglitz, G.R.; Sorensen, E.L. College Park, Md. : Entomological Society of America; 1986 Apr. Environmental entomology v. 15 (2): p. 396-398; 1986 Apr. Includes references. Language: English Descriptors: Medicago; Species; Hypera postica; Pest resistance; Hybridization; Glands (plant); Perennials; Greenhouse culture 86 NAL Call. No.: 60.9 AL2 Development of multiple pest resistance in three alfalfa populations. Thyr, B.D.; Kehr, W.R.; Manglitz, G.R.; Hartman, B.J.; Hunt, O.J. s.l. : U.S. Department of Agriculture, Agricultural Research Service; 1979 Jul. Report of the Alfalfa Improvement Conference (26th): p. 17; 1979 Jul. Meeting held June 6-8, 1978, Brookings, South Dakota. Includes abstract. Language: English Descriptors: Nebraska; Medicago sativa; Pest resistance; Plant breeding methods; Synthetic populations; Acyrthosiphon pisum; Therioaphis; Ditylenchus dipsaci; Colletotrichum trifolii; Corynebacterium insidiosum; Empoasca fabae 87 NAL Call. No.: 420 F662 Development of open-pollinated varieties, non-conventional hybrids and inbred lines of tropical maize with resistance to fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae), at CIMMYT. Mihm, J.A.; Smith, M.E.; Deutsch, J.A. Gainesville, Fla. : Florida Entomological Society; 1988 Sep. Florida entomologist v. 71 (3): p. 262-268; 1988 Sep. Paper presented at the "Fall Armyworm Symposium", 1988. Includes references. Language: English Descriptors: Mexico; Zea mays; Open pollination; Varieties; Hybrids; Inbred lines; Pest resistance; Spodoptera frugiperda; Cimmyt 88 NAL Call. No.: 59.9 AM32 Development of resistance in corn and sorghum to a foliar- and ear/panicle-feeding worm complex. Wiseman, B.R. Washington, D.C. : The Conference; 1985. Report of annual Corn and Sorghum Research Conference (40): p. 108-124. ill; 1985. Meeting held December 11-26, 1985, Chicago, Illinois. Includes references. Language: English Descriptors: Zea mays; Sorghum bicolor; Spodoptera frugiperda; Heliothis zea; Germplasm; Pest resistance; Breeding aims 89 NAL Call. No.: SB249.N6 Developmental changes in the tannin content of cotton leaves: implications in breeding for pest resistance. Bell, A.A. Memphis, Tenn. : National Cotton Council and The Cotton Foundation; 1988. Proceedings - Beltwide Cotton Production Research Conferences. p. 31; 1988. Conference held on January 3-8, 1988, New Orleans, Louisiana. Includes abstract. Language: English Descriptors: Gossypium; Germplasm releases; Cultivars; Resistance; Insect pests; Leaf analysis; Tannins 90 NAL Call. No.: 64.8 C883 Diallel analysis of resistance in sorghum to greenbug Biotype E: antibiosis and tolerance. Dixon, A.G.O.; Bramel-Cox, P.J.; Harvey, T.L. Madison, Wis. : Crop Science Society of America; 1990 Sep. Crop science v. 30 (5): p. 1055-1059; 1990 Sep. Includes references. Language: English Descriptors: Sorghum bicolor; Lines; Antibiosis; Schizaphis graminum; Biotypes; Diallel analysis; Crosses; Heterosis; General combining ability; Specific combining ability; Reciprocal effects; Maternal effects; Polygenic inheritance; Cytoplasmic inheritance; Genetic effects Abstract: The greenbug [Schizaphis graminum (Rondani)] has been recognized as a major insect pest of sorghum [Sorghum bicolor (L.) Moench] in the Great Plains of the USA since 1968. Biotype E has been prominent since 1980 and twelve sources of resistance within the Sorghum genus have been identified. The objective of this study was to investigate the inheritance of resistance in sorghum among seven sources of resistance and three susceptible lines for antibiosis and tolerance involving Biotype E. A complete diallel mating, including reciprocals, of the ten resistant and susceptible lines of sorghum was evaluated in the growth chamber to estimate heterosis, general combining ability (GCA), specific combining ability (SCA), maternal and specific reciprocal effects for seedling antibiosis, and tolerance to greenbug Biotype E. The majority of crosses between the resistant sources and susceptible lines showed intermediate reactions and various degrees of partial dominance for both antibiosis and tolerance, suggesting polygenic inheritance. Combining ability analyses revealed that GCA, SCA, maternal, and specific reciprocal effects were significant for both seedling antibiosis and tolerance, but GCA was clearly more important in determining tolerance. The most antibiotic parent, IS2388, had the largest GCA effect for antibiosis while the most tolerant parent PI 229828, had the largest GCA effect for tolerance. The significant maternal and specific reciprocal differences found among parents and crosses, respectively, suggested that the variation observed in this experiment was due not only to direct genetic effects, but also to maternal and/or cytoplasmic inheritance and specific interactions of cytoplasmic and genetic factors. 91 NAL Call. No.: S601.A34 Differential effects of nitrogen fertilization of three corn genotypes on biomass and nitrogen utilization by the southern armyworm, Spodoptera eridania. Manuwoto, S.; Scriber, J.M. Amsterdam : Elsevier; 1985 Nov. Agriculture ecosystems & environment v. 14 (1/2): p. 25-40; 1985 Nov. Includes references. Language: English Descriptors: Zea mays; Genotypes; Spodoptera eridania; Pest resistance; Nitrogen fertilizers; Nitrogen metabolism; Nitrogen content; Biomass; Dimboa 92 NAL Call. No.: SB599.C8 Differential feeding by grasshoppers and levels of foliar diseases in various cultivars of spring cereals. Olfert, O.; Hinks, C.F.; Westcott, N.D; Crowle, W.L.; Dziadyk, D.A.; Duczek, L.J. Guildford : Butterworths; 1988 Oct. Crop protection v. 7 (5): p. 338-343; 1988 Oct. Includes references. Language: English Descriptors: Hordeum vulgare; Triticum durum; Triticum aestivum; Triticale; Cultivars; Strains; Screening; Resistance; Insect pests; Orthoptera; Disease resistance; Fungal diseases; Leaves 93 NAL Call. No.: 64.8 C883 Differential reactions of Russian wheat aphid to various small-grain host plants. Worrall, W.D.; Scott, R.A. Madison, Wis. : Crop Science Society of America; 1991 Mar. Crop science v. 31 (2): p. 312-314; 1991 Mar. Includes references. Language: English Descriptors: Diuraphis noxia; Triticum aestivum; Avena sativa; Triticale; Pest resistance; Host plants; Genotypes; Cultivars; Test plants; Genotype environment interaction; Fecundity; Embryos; Genetic resistance Abstract: There are no standardized procedures for evaluation of host-plant resistance of small grains to Russian wheat aphid (RWA), (Mordvilko), Diuraphis noxia. Research results, therefore, often are ambiguous. One possible source of ambiguity is the host genotype on which aphids are reared prior to being used on test plants. In this study, two collections of RWA were cultured separately on TX78V2290-36-1 wheat (Triticum aestivum L. em Thell), TXGH10989 wheat, 'Nora' oat (Avena sativa L.) and 'Eronga' triticale (X Triticosecale Wittmack). After a 30-d period on the culture plants, the aphids were removed and placed on tester plants to determine whether the host-plant genotype used for colony maintenance affected aphid performance on testers. The tester plants were the same as those used for colony maintenance. Aphids were placed on testers from source plants in all possible combinations and aphid response to tester genotypes was determined by counting the number of embryos produced per aphid. Results showed that the source genotype had a significant effect on subsequent performance of aphids. The TX78V2290-36-1 wheat provided the best overall rearing environment of the genotypes tested. Aphids originally maintained on TX78V2290-36-1 successfully discriminated wheat from oat and oat from triticale, as well as distinguishing the different levels of resistance of the two wheat genotypes. 94 NAL Call. No.: 420 K13 DIMBOA content at seven stages of plant development in a maize synthetic cultivar. Guthrie, W.D.; Tseng, C.T.; Russell, W.A.; Coats, J.R.; Robbins, J.C.; Tollefson, J.J. Lawrence, Kan. : The Society; 1986 Apr. Journal of the Kansas Entomological Society v. 59 (2): p. 356-360; 1986 Apr. Includes references. Language: English Descriptors: Zea mays; Cultivars; Dimboa; Foliar diagnosis; Ostrinia nubilalis; Pest resistance 95 NAL Call. No.: 421 J822 Discrete and interactive effects of plant resistance and nuclear polyhedrosis viruses for suppression of soybean looper and velvetbean caterpillar (Lepidoptera: Noctuidae) on soybean. Beach, R.M.; Todd, J.W. College Park, Md. : Entomological Society of America; 1988 Apr. Journal of economic entomology v. 81 (2): p. 684-691; 1988 Apr. Includes references. Language: English Descriptors: Georgia; Glycine max; Cultivars; Genotypes; Pest resistance; Anticarsia gemmatalis; Pseudoplusia includens; Biological control; Polyhedrosis viruses 96 NAL Call. No.: SB191.W5I5 1983 Disease and insect resistance in wild wheats. Gill, B.S.; Browder, L.E.; Hatchett, J.H.; Harvey, T.L.; Martin, T.J.; Raupp, W.J.; Sharma, H.C.; Waines, J.G. Kyoto : Plant Germ-Plasm Institute, Faculty of Agriculture, Kyoto University; 1983. Proceedings of the sixth International Wheat Genetics Symposium / edited by Sadao Sakamoto. p. 785-792. maps; 1983. Includes references. Language: English Descriptors: Triticum; Wild plants; Disease resistance; Insect pests; Pest resistance; Genetic resources; Plant breeding; Puccinia recondita; Rust diseases; Wheat streak mosaic virus; Mayetiola destructor; Schizaphis graminum 97 NAL Call. No.: 421 J822 Distributions among S1 lines for European corn borer (Lepidoptera: Pyralidae) and stalk rot resistance ratings in two maize synthetics improved by recurrent selection. Nyhus, K.A.; Russell, W.A.; Guthrie, W.D. Lanham, Md. : Entomological Society of America; 1989 Feb. Journal of economic entomology v. 82 (1): p. 239-245; 1989 Feb. Includes references. Language: English Descriptors: Zea mays; Breeding programs; Genetic variation; Lines; Pest resistance; Ostrinia nubilalis; Disease resistance; Diplodia maydis; Heritability Abstract: Four cycles of recurrent selection were used to reduce leaf-feeding damage caused by first-generation European corn borer (ECB), Ostrinia nubilalis Hubner, and pith decay associated with Diplodia, Diplodia maydis (Berkeley) Saccardo, stalk rot (DSR) in two maize, Zea mays L., synthetics, BSAA and BSBB. Recurrent selection was based on the evaluation of S(1) progenies. For this study, 100 unselected S(1) lines from each of the original (CO) and improved (C4) populations of BSAA and BSBB were evaluated for ECB resistance, DSR resistance, and stalk rind puncture. The distributions of S(1) lines for the three traits and the genetic relationships among traits were evaluated to determine the effectiveness of the recurrent selection programs. The C4s of both synthetics were more resistant than the COs to ECB leaf feeding after artificial infestations, were more resistant to DSR after artificial inoculations, and possessed harder stalks. The differences between the CO and C4 means were highly significant (P less than 0.01) in all instances. Reductions in genetic variation were observed in BSAA for ECB ratings and in BSBB for all three traits. The reductions in genetic variation were especially dramatic for ECB ratings, indicating that relatively few gene pairs were segregating for leaf-feeding resistance in BSAA and BSBB. Low and generally nonsignificnant correlations between DSR ratings and rind puncture readings indicated that selection for both traits would be justified to improve field stalk lodging resistance. 98 NAL Call. No.: 421 J822 Distributions for European corn borer (Lepidiotera: Pyralidae) resistance ratings of S1 lines from 'BS9' corn. Klenke, J.R.; Russell, W.A.; Guthrie, W.D. College Park, Md. : Entomological Society of America; 1986 Aug. Journal of economic entomology v. 79 (4): p. 1076-1081; 1986 Aug. Includes references. Language: English Descriptors: Iowa; Zea mays; Cultivars; Congenic resistant lines; Ostrinia nubilalis; Pest resistance; Plant breeding 99 NAL Call. No.: S383.A3N44 Early assessment of aphid tolerant accessions of annual medics for central western New South Wales. Hochman, Z. Sydney : The Department; 1985 Dec. Technical bulletin - Department of Agriculture, New South Wales (32): p. 29-33; 1985 Dec. Paper presented at "Workshop on The Ecology and Agronomy of Medics," Condobolin, New South Wales, 1981. Includes references. Language: English Descriptors: New south wales; Medicago; Genotypes; Annual field crops; Acyrthosiphon; Acyrthosiphon pisum; Therioaphis; Therioaphis trifolii; Insect pests; Pest resistance; Varietal susceptibility; Selection criteria; Canonical variates; Germplasm 100 NAL Call. No.: QL461.E532 Ecological, agricultural, genetic, and commercial considerations in the deployment of insect-resistant germplasm. Kennedy, G.G.; Gould, F.; Deponti, O.M.B.; Stinner, R.E. Lanham, Md. : Entomological Society of America; 1987 Apr. Environmental entomology v. 16 (2): p. 327-338; 1987 Apr. Includes references. Language: English Descriptors: Plant breeding; Insect control; Genetics; Heliothis zea; Simulation models Abstract: We make an attempt to identify the agricultural and ecological factors of greatest importance in assessing the applicability of different modalities (antibiosis, antixenosis, tolerance) and levels of insect resistance to the pest management requirements of different crops and cropping systems. Emphasis is placed on the importance of matching the type and level of resistance to the pest's biology (e.g., feeding habits, development on the crop, alternate host, patterns of invasion of the crop, number of generations passed in the crop) and the production requirements of the crop. We illustrate how, depending on context, the use of a particular modality and level of resistance may simplify pest management, reduce crop losses without simplifying pest management, or by changing a pest whose occurrence in damaging populations is highly predictable to one whose occurrence is irregular and unpredictable, complicate pest management. The HELSIM Heliothis zea population dynamics model is used to illustrate how simulation models can be used to explore the consequences of deploying particular modalities and levels of insect resistance. In exploring genetic considerations in the use of insect-resistant germplasm, we focus on the problem of maximizing the durability of insect resistance by minimizing selection for virulent biotypes. We examine whether some modalities of resistance are inherently more stable than others regarding selection of virulent biotypes, and argue that in judging the inherent durability of a particular resistance, exclusive focus on the genetic nature of the plant resistance is inadequate. Knowledge of the genetic variability of the target pest vis a vis the plant resistance and an understanding of the direct biological effects of the resistance on the insect are also essential. The selection pressure for virulent insect biotypes exerted by resistant crop cultivars is shown to be dependent upon the modality of resistance as well as the agricultural and ecol 101 NAL Call. No.: S1.S68 Ecological and genetic nature of inheritance of winter wheat's resistance to frit fly damage. Susidko, P.I.; Ryabchenko, N.A. New York, N.Y. : Allerton Press; 1990. Soviet agricultural sciences (7): p. 1-3; 1990. Translated from: Doklady Vsesoyuznoi Akademii Sel'skokhozyastvennykh Nauk Im. V.I. Lenina, No. 7, 1990, p. 2-4. (20 AK1). Includes references. Language: English; Russian Descriptors: Ukrainian ssr; Triticum aestivum; Winter wheat; Genotypes; Resistance; Crop damage; Oscinella frit; Genetic control; Inheritance; Chromosomes; Organogenesis 102 NAL Call. No.: 421 EN895 Effect of cassava varietal mixtures on the whiteflies Aleurotrachelus socialis and Trialeurodes variabilis in Colomibia. Gold, C.S.; Altieri, M.A.; Bellotti, A.C. Dordrecht : Kluwer Academic Publishers; 1989 Dec15. Entomologia experimentalis et applicata v. 53 (3): p. 195-202; 1989 Dec15. Includes references. Language: English Descriptors: Colombia; Manihot esculenta; Variety trials; Pest resistance; Hemiptera; Trialeurodes; Population dynamics; Yield losses 103 NAL Call. No.: 421 J822 Effect of constitutive and herbivore-induced extractables from susceptible and resistant soybean foliage on nonpest and pest noctuid caterpillars. Wheeler, G.S.; Slansky, F. Jr Lanham, Md. : Entomological Society of America; 1991 Jun. Journal of economic entomology v. 84 (3): p. 1068-1079; 1991 Jun. Includes references. Language: English Descriptors: Florida; Glycine max; Lines; Pest resistance; Plant extracts; Susceptibility; Crop damage; Anticarsia gemmatalis; Helicoverpa zea; Heliothis virescens; Spodoptera frugiperda; Trichoplusia ni; Growth rate; Mortality; Rearing techniques Abstract: Soybean foliage from susceptible ('Bragg') and resistant (PI 229358 and D75-10169) lines was extracted in several nonpolar and polar organic solvents to assess constitutive (mite-free) and induced (mite-damaged) activity against nonpest and pest noctuid caterpillars. The benzene fraction, incorporated in artificial diet, contained most of the constitutive activity of both the resistant and susceptible lines, as indicated by reduced relative growth rate (RGR) of velvetbean caterpillar, Anticarsia gemmatalis Hubner; corn earworm, Helicoverpa (= Heliothis) zea (Boddie); tobacco budworm, H. virescens (F.); and fall armyworm, Spodoptera frugiperda (J. E. Smith) compared with larvae fed the extract- and solvent-free control diet. Induced activity from mite-damaged greenhouse-grown plants and A. gemmatalis-damaged field-grown plants was detected primarily in the petroleum ether fraction. Among the species tested on the induced fractions (A. gemmatalis, S. frugiperda, and the cabbage looper, Trichoplusia ni (Hubner)), S. frugiperda was the most sensitive species, as demonstrated by reduced RGR. Overall, among the species (H. zea, H. virescens, and T. ni) more tolerant of the soybean foliage fractions, only H. zea is a major soybean foliage pest. Surprisingly, among the two most sensitive species, A. gemmatalis is a legume specialist and major soybean pest, whereas S. frugiperda is a polyphagous species but not a soybean pest. These results suggest that presumed soybean-adapted species may not be more resistant than soybean-naive species to the deleterious effects of soybean foliage extracts. 104 NAL Call. No.: 420 EN86 The effect of different maize genotypes on the maize stalk-borer, Busseola fusca (Fuller) (Lepidoptera: Noctuidae), feeding in whorl tissue. Barrow, M.R. Pretoria : The Society; 1985 Apr. Journal of the Entomological Society of Southern Africa v. 48 (1): p. 113-119; 1985 Apr. Includes references. Language: English Descriptors: Zea mays; Genotypes; Busseola fusca; Pest resistance 105 NAL Call. No.: 420 EN86 The effect of first generation maize stalkborer, Busseola fusca (Fuller) (Lepidoptera: Noctuidae), on yield of different maize genotypes. Barrow, M.R. Pretoria : The Society; 1987 Sep. Journal of the Entomological Society of Southern Africa v. 50 (2): p. 291-298; 1987 Sep. Includes references. Language: English Descriptors: South Africa; Zea mays; Genotypes; Pest resistance; Crop yield; Busseola fusca; Crop damage; Feeding habits 106 NAL Call. No.: QL461.E532 Effect of husk tightness and insect (Lepidoptera) infestation on aflatoxin contamination of preharvest maize. Barry, D.; Lillehoj, E.B.; Widstrom, N.W.; McMillan, W.W.; Zuber, M.S.; Kwolek, W.F.; Guthrie, W.D. College Park, Md. : Entomological Society of America; 1986 Dec. Environmental entomology v. 15 (6): p. 1116-1118; 1986 Dec. Includes references. Language: English Descriptors: Missouri; Iowa; Georgia; Zea mays; Hybrids; Husks; Kernels; Pest resistance; Aflatoxins; Ostrinia nubilalis; Heliothis zea; Aspergillus flavus; Contamination 107 NAL Call. No.: 421 J822 Effect of research on commercial hybrid maize resistance to European corn borer (Lepidoptera: Pyralidae). Barry, D.; Darrah, L.L. Lanham, Md. : Entomological Society of America; 1991 Jun. Journal of economic entomology v. 84 (3): p. 1053-1059; 1991 Jun. Includes references. Language: English Descriptors: Missouri; Zea mays; Crop damage; Crop losses; Feeding behavior; Hybrids; Pest resistance; Ostrinia nubilalis; Agricultural research Abstract: Economic loss caused by the European corn borer, Ostrinia nubilalis (Hubner), amounts to millions of dollars per year. Maize breeding programs funded from public and private sources have developed and released germplasm with resistance to European corn borer whorl leaf feeding and, to a lesser extent, sheath and sheath collar feeding during flowering. A 4-yr study of 100 hybrids each year was undertaken to evaluate levels of resistance to European corn borer available to the farmer in commercial hybrids. About 90% of the maize hybrids evaluated have some resistance to whorl leaf feeding and about 75% have some resistance to sheath and sheath collar feeding. In approximately two-thirds of the hybrids evaluated in Missouri, the resistance levels could be further enhanced and susceptible hybrids improved with the introduction of additional genes for resistance. 108 NAL Call. No.: 421 EN895 Effect of secondary plant substances on winter wheat resistance to grain aphid. Leszczynski, B.; Wright, L.C.; Bakowski, T. Dordrecht : Kluwer Academic Publishers; 1989 Sep. Entomologia experimentalis et applicata v. 52 (2): p. 135-139; 1989 Sep. Includes references. Language: English Descriptors: Poland; Triticum; Winter wheat; Cultivars; Pest resistance; Sitobion avenae; Chemical constituents of plants; Alkaloids; Hydroxamic acids; Phenols 109 NAL Call. No.: 421 EN895 Effect of stalk damage on growth and yield of certain maize cultivars by the maize stalk borer Chilo partellus. Kumar, H. Dordrecht : Dr W. Junk Publishers; 1988 Feb. Entomologia experimentalis et applicata v. 46 (2): p. 149-153; 1988 Feb. Includes references. Language: English Descriptors: India; Zea mays; Cultivars; Crop damage; Pest resistance; Chilo partellus; Crop yield; Growth; Plant height 110 NAL Call. No.: SB599.J69 Effectiveness of selected genes for Hessian fly resistance in wheat. Buntin, G.D.; Bruckner, P.L.; Johnson, J.W.; Foster, J.E. Clemson, S.C. : South Carolina Entomological Society; 1990 Oct. Journal of agricultural entomology v. 7 (4): p. 283-291; 1990 Oct. Includes references. Language: English Descriptors: Georgia; Triticum aestivum; Mayetiola destructor; Antibiosis; Genetic resistance 111 NAL Call. No.: 421 J822 Effectiveness of wheat genes for Hessian fly (Diptera: Cecidomyiidae) resistance in Texas. Lidell, M.C.; Schuster, M.F. Lanham, Md. : Entomological Society of America; 1990 Jun. Journal of economic entomology v. 83 (3): p. 1135-1139; 1990 Jun. Includes references. Language: English Descriptors: Texas; Triticum aestivum; Cultivars; Genes; Pest resistance; Mayetiola destructor Abstract: Biotypes of Hessian flies, Mayetiola destructor (Say), collected from wheat, Triticum aestivum (L.), in four North Central Texas locations were determined in 1986 and 1987. During 1986 the Great Plains A and C biotypes were found to be most prevalent in Hessian fly populations, whereas in 1987 the A, C, and F biotypes were most common. Results from biotype experiments and infestation ratings of wheat lines from the Uniform Hessian Fly Nursery in 1986-1988 indicated that while all genes for Hessian fly resistance provided protection from infestation, the H6, H7H8, and H12 genes were the least effective for use in Texas. 112 NAL Call. No.: QL461.E532 Effects of ancymidol and gibberellic acid on the response of susceptible 'Newton' and resistance 'Abe' winter wheat infested by biotype E Hessian flies (Diptera: Cecidomyiidae). Wellso, S.G.; Coolbaugh, R.C.; Hoxie, R.P. Lanham, Md. : Entomological Society of America; 1991 Apr. Environmental entomology v. 20 (2): p. 489-493; 1991 Apr. Includes references. Language: English Descriptors: Triticum aestivum; Mayetiola destructor; Varietal resistance; Varietal susceptibility; Ancymidol; Gibberellic acid; Carbohydrates Abstract: Susceptible 'Newton' and resistant 'Abe' winter wheat (Triticum aestivum L. em Thell.) were infested with larvae of biotype E Hessian fly, Mayetiola destructor (Say). Plants and crowns of infested 'Newton' weighed less, were shorter, had fewer tillers, and had significantly less soluble carbohydrates than the control plants. Only the plant height of infested resistant 'Abe' was significantly reduced. This finding was unexpected because, avirulent larvae have never been shown to affect the growth of a resistant host. In 'Newton,' only the quantity of sucrose differed between treatments, being significantly greater in the infested than the control plants, although there was a trend for the control plants to have more fructan and less sucrose, glucose, and fructose than the treated plants. No differences were noted in soluble carbohydrates between infested and control 'Abe.' Ancymidol, a plant growth retardant, stunted both wheat cultivars but did not alter resistance in 'Abe.' Gibberellic acid (GA3) reversed ancymidol-induced growth inhibition but did not reverse Hessian fly stunting in 'Newton.' Therefore, stunting of wheat by the Hessian fly and ancymidol treatments appear to involve different biochemical pathways. 113 NAL Call. No.: S601.A34 Effects of cotton cultivars on feeding of Heliothis armigera and Spodoptera littoralis larvae and on oviposition of Bemisia tabaci. Navon, A.; Melamed-Madjar, V.; Zur, M.; Ben-Moshe, E. Amsterdam : Elsevier; 1991 Mar. Agriculture, ecosystems and environment v. 35 (1): p. 73-80; 1991 Mar. Includes references. Language: English Descriptors: Israel; Texas; Gossypium hirsutum; Cultivars; Crop damage; Pest resistance; Spodoptera littoralis; Bemisia tabaci; Helicoverpa armigera; Larvae; Oviposition; Feeding behavior 114 NAL Call. No.: SB950.A1P3 Effects of cultivar, time and amount of Chilo partellus Swinhoe (Lepidoptera: Pyralidae) infestation on sorghum yield components in Kenya. Alghali, A.M. London : Centre for Overseas Pest Research; 1986 Apr. Tropical pest management v. 32 (2): p. 126-129, 190, 193-194; 1986 Apr. Includes references. Language: English Descriptors: Kenya; Sorghum; Chilo partellus; Pest control; Cultivars; Pest resistance; Timeliness; Population density; Yield losses 115 NAL Call. No.: SB123.P535 The effects of different cotton varieties on the carmine spider mite, Tetranychus cinnabarinus Boisd. (Acari : Tetranychidae). Sengonca, C.; Lababidi, M.S.; Gerlach, S. Berlin, W. Ger. : Paul Parey; 1986 Dec. Plant breeding; Zeitschrift fur Pflanzenzuchtung. p. 297-303; 1986 Dec. Includes references. Language: English Descriptors: Gossypium hirsutum; Varieties; Pest resistance; Tetranychus cinnabarinus; Development; Longevity; Fecundity 116 NAL Call. No.: 442.8 AN72 Effects of hydroxamic acids on the resistance of wheat to the aphid Sitobion avenae. Bohidar, K.; Wratten, S.D.; Niemeyer, H.M. Warwick : Association of Applied Biologists; 1986 Aug. Annals of applied biology v. 109 (1): p. 193-198; 1986 Aug. Includes references. Language: English Descriptors: Triticum aestivum; Sitobion avenae; Pest resistance; Hydroxamic acids 117 NAL Call. No.: QL461.E532 Effects of leaf position, leaf wounding, and plant age of two soybean genotypes on soybean looper (Lepidoptera: Noctuidae) growth. Reynolds, G.W.; Smith, C.M. College Park, Md. : Entomological Society of America; 1985 Aug. Environmental entomology v. 14 (4): p. 475-478; 1985 Aug. Includes references. Language: English Descriptors: Glycine max; Genotypes; Pest resistance; Pseudoplusia includens; Leaf age; Wounds 118 NAL Call. No.: SB608.R5C65 1990 Effects of nitrogenous fertilizer, insecticides and plant spacing on insect pests and yields of flooded rice in eastern India. Chakraborty, D.P.; Maslen, N.R.; Holt, J. New York Published for the Society of Chemical Industry by Elsevier Applied Science; 1990. Pest management in rice / edited by B.T. Grayson, M.B. Green, and L.G. Copping. p. 167-176; 1990. Paper presented at the "Conference on Pest Management in Rice," June 4-7, 1990, London. Includes references. Language: English Descriptors: Bihar; Orissa; West bengal; Oryza sativa; Flooded rice; Nephotettix; Nilaparvata lugens; Scirpophaga incertulas; Sogatella furcifera; Incidence; Insecticides; Nitrogen fertilizers; Plant density; Varietal resistance; Yield response functions; Field tests 119 NAL Call. No.: 421 J822 Effects of resistant maize silks on corn earworm (Lepidoptera: Noctuidae) biology: a laboratory study. Wiseman, B.R.; Isenhour, D.J. Lanham, Md. : Entomological Society of America; 1990 Apr. Journal of economic entomology v. 83 (2): p. 614-617; 1990 Apr. Includes references. Language: English Descriptors: Zea mays; Cultivars; Hybrids; Pest resistance; Heliothis zea; Development; Diet studies; Growth; Laboratory tests; Oviposition; Population decrease Abstract: Results of a laboratory study show that even low levels of resistant maize, Zea mays L., silks reduced corn earworm, Heliothis zea (Boddie), growth and extended the life cycle by about 3 d. An intermediate level of resistance in maize silks reduced corn earworm growth, extended developmental time by about 8 d per generation, and subsequently reduced egg production by approximately 30%. A high level of resistance in maize silks reduced corn earworm growth, extended the life cycle by about 20 d, and reduced egg production by about 65% per generation. In addition to these parameters, if corn earworm attacked maize each generation, the intermediate level of this type of resistance would eliminate about two generations per year and the high level of resistance 40-50% of the generations per year. Thus, if hybrid maize can be developed with intermediate to high levels of resistance to corn earworm, then populations that usually devastate alternate crops can be dramatically reduced while reducing pesticide use by growers. 120 NAL Call. No.: 420 K13 Effects of sorghum density and resistance on infestations of greenbug, Schizaphis graminum (Homoptera: Aphididae). Harvey, T.L.; Thompson, C.A. Lawrence, Kan. : The Society; 1988 Jan. Journal of the Kansas Entomological Society v. 61 (1): p. 68-71; 1988 Jan. Includes references. Language: English Descriptors: Sorghum; Hybrids; Susceptibility; Pest resistance; Plant density; Schizaphis graminum 121 NAL Call. No.: QL461.E532 Effects of temperature on development of corn earworm (Lepidoptera: Noctuidae) on meridic diets of resistant and susceptible corn silks. Wiseman, B.R.; Isenhour, D.J. Lanham, Md. : Entomological Society of America; 1989 Aug. Environmental entomology v. 18 (4): p. 683-686; 1989 Aug. Includes references. Language: English Descriptors: Zea mays; Heliothis zea; Larvae; Development; Temperatures; Resistance to injurious factors Abstract: Effects of interactions among temperature (20, 25, and 30 degrees C), known resistant and susceptible corn genotypes ('Zapalote Chico' and 'Stowell's Evergreen'), and concentrations of corn silk material-pinto bean diet mixture (0 and 18.75, 37.5 and 67.0 mg) on corn earworm, Heliothis zea (Boddie), growth ad developmental parameters were evaluated. Parameters measured were: 9-d larval weights, developmental time of larvae, weight of pupae, and days to adult eclosion. Corn earworm growth was slowest at 20 degrees C and fastest at 30 degrees C. Significant (P less than 0.05) differences caused by the resistant 'Zapalote Chico' compared with the susceptible 'Stowell's Evergreen' were measured consistently at 25 degrees C for all four developmental parameters. The median temperature (25 degrees C) appears to be optimun for detecting growth differences between resistant and susecptible plant materials regardless of silk concentration. 122 NAL Call. No.: 421 EN895 Electrical penetration graphs from Nilaparvata lugens on resistant and susceptible rice varieties. Kimmins, F.M. Dordrecht : Kluwer Academic Publishers; 1989 Jan. Entomologia experimentalis et applicata v. 50 (1): p. 69-79; 1989 Jan. Includes references. Language: English Descriptors: Oryza sativa; Varieties; Crop damage; Electronics; Monitoring; Pest resistance; Nilaparvata lugens; Phloem; Ingestion 123 NAL Call. No.: QK981.5.G464 Engineering insect and herbicide-resistant crops. Leemans, J. Cold Spring Harbor, N.Y. : Cold Spring Harbor Laboratory; 1988. Genetic improvements of agriculturally important crops : progress and issues / edited by Robert T. Fraley, Nicholas M. Frey, Jeff Schell. p. 77-81; 1988. (Current communications in molecular biology). Includes references. Language: English Descriptors: Solanum tuberosum; Nicotiana tabacum; Genetic engineering; Breeding aims; Resistance; Insect pests; Herbicides; Agrobacterium; Streptomyces 124 NAL Call. No.: QL461.E532 Enhanced predation by Orius insidiosus (Hemiptera: Anthocoridae) on larvae of Heliothis zea and Spodoptera frugiperda (Lepidoptera: Noctuidae) caused by prey feeding on resistant corn genotypes. Isenhour, D.J.; Wiseman, B.R.; Layton, R.C. Lanham, Md. : Entomological Society of America; 1989 Jun. Environmental entomology v. 18 (3): p. 418-422; 1989 Jun. Includes references. Language: English Descriptors: Zea mays; Heliothis zea; Spodoptera frugiperda; Larvae; Genotypes; Resistance to injurious factors; Orius insidiosus; Predators of insect pests Abstract: Prey feeding on resistant versus susceptible corn genotypes was investigated for its effect on predation by Orius insidiosus (Say). Fall armyworm, Spodoptera frugiperda (J.E. Smith), that fed on fresh foliage of the resistant corn genotype 'MpSWCB-4' suffered significantly higher rates of predation by adult O. insidiosus (Say) than did armyworm fed 'Cacahuacintle,' a susceptible genotype. Similar results were obtained when corn earworm, Heliothis zea (Boddie), were fed a meridic diet containing silks from 'Zapalote Chico' compared with a diet without silks. A type II functional response was exhibited by O. insidiosus preying on fall armyworm but not on corn earworm. Feeding by corn earworm on meridic diets that contained resistant silks increased the age of the prey that were susceptible to attack by the predator. 125 NAL Call. No.: SB931.E57 Entomology and horticulture of muscadine grapes. Dutcher, J.D.; McGiffen, K.C.; All, J.N. Boulder : Westview Press; 1988. The Entomology of indigenous and naturalized sysems in agriculture / edited by Marvin K. Harris and Charles E. Rogers. p. 73-90. maps; 1988. (Westview studies in insect biology). Includes references. Language: English Descriptors: U.S.A.; Vitis; Breeding programs; Cultivars; Host parasite relationships; Insect pests; Pest control; Pest resistance; Viticulture 126 NAL Call. No.: 421 AN72 Entomology of oilseed brassica crops. Lamb, R.J. Palo Alto, Calif. : Annual Reviews, Inc; 1989. Annual review of entomology v. 34: p. 211-229; 1989. Literature review. Includes references. Language: English Descriptors: Brassica; Oil plants; Plant damage; Host parasite relationships; Insect pests; Insect control; Insecticides; Cultural control; Pest resistance; Plant breeding 127 NAL Call. No.: 421 J822 European corn borer (Lepidoptera: Pyralidae) leaf-feeding resistance and DIMBOA content in inbred lines of dent maize grown under field versus greenhouse conditions. Guthrie, W.D.; Wilson, R.L.; Coats, J.R.; Robbins, J.C.; Tseng, C.T.; Jarvis, J.L.; Russell, W.A. College Park, Md. : Entomological Society of America; 1986 Dec. Journal of economic entomology v. 79 (6): p. 1492-1496. ill; 1986 Dec. Includes references. Language: English Descriptors: Ostrinia nubilalis; Zea mays; Inbred lines; Pest resistance; Leaves; Animal feeding; Biochemistry; Chemical constituents of plants; Greenhouse experimentation; Field experimentation 128 NAL Call. No.: 64.8 C883 European corn borer resistance and cell wall composition of three maize populations. Buendgen, M.R.; Coors, J.G.; Grombacher, A.W.; Russell, W.A. Madison, Wis. : Crop Science Society of America; 1990 May. Crop science v. 30 (3): p. 505-510; 1990 May. Includes references. Language: English Descriptors: Zea mays; Cell wall components; Nutrient contents of plants; Fiber content; Lignin; Ash content; Nitrogen content; Pest resistance; Ostrinia nubilalis; Recurrent selection; Digestibility Abstract: Feeding activities of herbivorous insects are influenced by host plant nutritional quality. Improved insect resistance resulting from either natural or artificial selection may be due, in part, to changes in nutritive constituents of plants. The first objective of this study was to measure changes in detergent fiber, lignin, ash, and N concentrations in whorls, leaf- sheaths, and stalks of the BS9 maize (Zea mays L.) population across five cycles of selection for resistance to the European corn borer (ECB) [Ostrinia nubilalis (Hubner)]. The second objective was to evaluate ECB resistance in the WFISIHI and WFISILO maize populations, which were developed for high and low concentrations, respectively, of indigestible plant constituents (acid detergent fiber, lignin, and silica) in the leaf sheath. Leaf-sheath composition for all five cycles of BS9 was measured in three environments in Iowa. Whorl, leaf-sheath and stalk composition, as well as first-and second-generation ECB resistance of populations WFISIHI, WFISILO and Cycles 0, 2, 4, and 5 of BS9 were evaluated in two environments in Wisconsin. Whorl composition was not related to changes in ECB resistance in any population. In BS9, leaf-sheath and stalk concentrations of neutral and acid detergent fiber, cellulose, and lignin increased linearly over selection cycles. In contrast, WFISIHI was as susceptible to second-generation ECB as WFISILO, suggesting that the responses in BS9 may be due to linkage or unintentional selection. Populations BS9, WFISIHI, and WFISILO, however, were derived from diverse sources, and it is likely that mechanisms for resistance differ for the three populations. 129 NAL Call. No.: SB608.M2I57 1987 Evaluating and breeding for maize resistance to the rootworm complex. Branson, T.F.; Sutter, G.R. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 130-139. ill; 1987. Includes references. Language: English Descriptors: Zea mays; Breeding programs; Resistance; Diabrotica; Species; Evaluation; Techniques 130 NAL Call. No.: SB608.M2I57 1987 Evaluating maize for resistance to tropical stem borers, armyworms, and earworms. Mihm, J.A. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 109-121. ill; 1987. Includes references. Language: English Descriptors: Zea mays; Breeding programs; Resistance; Diatraea saccharalis; Diatraea grandiosella; Spodoptera frugiperda; Helicoverpa zea; Germplasm; Evaluation; Techniques 131 NAL Call. No.: SB123.3.U84 Evaluating the germplasm of groundnut (Arachis hypogaea) and wild Arachis species at ICRISAT. Moss, J.P.; Ramanatha Rao, V.; Gibbons, R.W. Cambridge [Cambridgeshire] : Cambridge University Press; 1989. The Use of plant genetic resources / edited by A.H.D. Brown ... [et al.].. p. 212-234. ill; 1989. Paper presented at the "Workshop on Genetic Resources and the Plant Breeder," September 9-12, 1986, Montpellier, France. Literature review. Includes references. Language: English Descriptors: India; Arachis hypogaea; Germplasm; Plant collections; Evaluation; Screening tests; Agronomic characteristics; Plant diseases; Disease resistance; Resistance; Insect pests; Drought resistance 132 NAL Call. No.: 100 Ar42 no.700 Evaluation of a selected cross-section of cottons for resistance to the boll weevil.. Evaluation of a selected cross section of cottons for resistance to the boll weevil Hunter, Robert C. Fayetteville, Ark. : Agricultural Experiment Station, Division of Agriculture, University of Arkansas,; 1965. 38 p. : ill. ; 23 cm. (Bulletin (University of Arkansas. (Fayetteville campus). Agricultural Experiment Station) ; 700.). Cover title. Bibliography: p. 37-38. Language: English; English Descriptors: Cotton; Disease and pest resistance; Arkansas; Boll weevil; Arkansas 133 NAL Call. No.: aSB205.S7S6 Evaluation of certain specialty soybean germplasm for corn earworm resistance and harvest index. Joshi, J.M.; Dadson, R.B.; Nobakht, M. Ames, Iowa : The Service; 1989 Apr. Soybean genetics newsletter - U.S. Department of Agriculture, Agricultural Research Service v. 16: p. 141-144; 1989 Apr. Includes references. Language: English Descriptors: Glycine max; Helicoverpa zea; Cultivars; Pest resistance; Genetic resistance; Pods; Damage; Harvest index 134 NAL Call. No.: 421 J822 Evaluation of chrysanthemum resistance to oviposition and larval feeding of the European corn borer (Lepidoptera: Pyralidae). Schultz, P.B.; Coffelt, M.A. Lanham, Md. : Entomological Society of America; 1989 Oct. Journal of economic entomology v. 82 (5): p. 1423-1425; 1989 Oct. Includes references. Language: English Descriptors: Virginia; Chrysanthemum; Cultivars; Pest resistance; Ostrinia nubilalis; Oviposition; Larvae; Feeding behavior; Insect control; Parasites of insect pests; Phaeogenes Abstract: Twelve yellow and 12 bronze chrysanthemum, Chrysanthemum x morifolium Ramat., cultivars were compared for resistance to European corn borer, Ostrinia nubilalis (Hubner). Bronze cultivar Grenadine' and yellow cultivars 'Yellow Starlet' and Goldmine' showed resistance in oviposition preference studies. Grenadine' and yellow cultivars Freedom' and Nuggets' had the lowest infestation levels on stem sections. Phaeogenes nigridens Wesmael (Hymenoptera: Ichneumonidae), an introduced parasite, was collected from the field infestation and is a new state record. 135 NAL Call. No.: aSB205.S7S6 Evaluation of commerical soybean cultivars and advance breeding lines for non-preference to Heliotis zea. Joshi, J.M.; Nobakht, M. Ames, Iowa : The Service; 1988 Apr. Soybean genetics newsletter - United States Department of Agriculture, Agricultural Research Service v. 15: p. 124-126; 1988 Apr. Includes references. Language: English Descriptors: Maryland; Glycine max; Heliothis zea; Cultivars; Pest resistance; Breeding aims; Susceptibility 136 NAL Call. No.: S51.E22 Evaluation of corn hybrids for resistance to insects. Widstrom, N.W.; McMillian, W.W.; Wiseman, B.R. Athens, Ga. : The Stations; 1988 Dec. Research report - University of Georgia, College of Agriculture, Agricultural Experiment Stations (565): p. 28-31; 1988 Dec. Includes statistical data. Language: English Descriptors: Georgia; Zea mays; Hybrids; Variety trials; Pest resistance; Insects; Husks; Flowering date 137 NAL Call. No.: 420 IN23 Evaluation of different techniques for screening maize germplasm for resistance to maize borer Chilo partellus (Swinhoe). Singh, J.; Sajjan, S.S. New Delhi : Entomological Society of India; 1983 Dec. Indian journal of entomology v. 45 (pt.4): p. 424-430; 1983 Dec. Includes references. Language: English Descriptors: Indian punjab; Zea mays; Germplasm; Screening; Varieties; Chilo partellus; Crop damage; Pest resistance 138 NAL Call. No.: SB1.J66 Evaluation of European corn borer resistance in hardy chrysanthemum. Schultz, P.B.; Coffelt, M.A. Washington, D.C. : Horticultural Research Institute; 1988 Mar. Journal of environmental horticulture v. 6 (1): p. 15-17; 1988 Mar. Includes references. Language: English Descriptors: Virginia; Chrysanthemum; Cultivars; Ostrinia nubilalis; Pest resistance; Plant breeding; Biological control; Insect control 139 NAL Call. No.: S51.E22 Evaluation of grain sorghum hybrids for resistance to insects. Wiseman, B.R.; Duncan, R.R.; Skinner, J.L. Athens, Ga. : The Stations; 1989 Feb. Research report - University of Georgia, College of Agriculture, Agricultural Experiment Stations (568): p. 73-74; 1989 Feb. In series analytic: The 1988 Field Crops Performance Tests: Soybeans, etc. edited by Paul L. Raymer, et al., issued February 1989. Language: English Descriptors: Georgia; Sorghum bicolor; Variety trials; Hybrids; Insect control 140 NAL Call. No.: 421 J822 Evaluation of J.C. Eldredge popcorn collection for resistance to corn earworm, fall armyworm (Lepidoptera: Noctuidae), and European corn borer (Lepidoptera: Pyralidae). Wilson, R.L.; Wiseman, B.R.; Reed, G.L. Lanham, Md. : Entomological Society of America; 1991 Apr. Journal of economic entomology v. 84 (2): p. 693-698; 1991 Apr. Includes references. Language: English Descriptors: Georgia; Iowa; Oregon; Zea mays; Lines; Pest resistance; Crop damage; Helicoverpa zea; Ostrinia nubilalis; Spodoptera frugiperda; Weight; Developmental stages Abstract: Discovery that popcorn (Zea mays L.) PI 340856 was resistant to corn earworm (Heliothis zea (Boddie)) led us to evaluate 34 additional lines developed by J.C. Eldredge for resistance to corn earworm, European corn borer (Ostrinia nubilalis (Hubner)), and fall armyworm (Spodoptera frugiperda J.E. Smith). The 35 lines were evaluated for corn earworm resistance in the field with artificial infestation at Ames, Iowa, and Tifton, Ga., and with natural infestation at Hermiston, Oreg. None of the lines was better than the resistant check, 'Zapalote Chico' (PI 217413), at any of the three locations. Several lines had significantly better damage ratings than the susceptible checks. A bioassay of these materials for corn earworm resistance was run in the laboratory at Ames and Tifton by adding dried maize silks to laboratory diets and monitoring insect growth and development. Six lines were evaluated as resistant at both locations. In the field at Ames, two of these six lines were rated resistant to European corn borer. Fall armyworm field resistance ratings at Tifton indicated that one line was resistant after 7 d, but it was intermediate after 14 d. The J.C. Eldredge collection of popcorns provides sources of antibiosis to corn earworm and European corn borer and is available for use by plant breeders. Corn earworm resistance may be enhanced by breeding for husk protection, which may provide an environment that will capitalize on the antibiotic factors found in the maize silks. 141 NAL Call. No.: 420 IN23 Evaluation of maize cultivars for resistance to stem borer. Kundu, G.G. New Delhi : Entomological Society of India; 1985 Sep. Indian journal of entomology v. 47 (pt.3): p. 325-327; 1985 Sep. Includes statistical data. Includes references. Language: English Descriptors: Zea mays; Cultivars; Pest resistance; Chilo partellus; Sesamia; Busseola fusca 142 NAL Call. No.: 23 AU74 Evaluation of new aphid resistant annual medics in north-west Victoria. Amor, R.L.; Quigley, P.E.; Latta, R.A.; Eales, J.W. North Ryde, N.S.W. : Academic Press; 1986. Journal of the Australian Institute of Agricultural Science v. 52 (2): p. 83-86; 1986. Includes references. Language: English Descriptors: Victoria; Medicago; Cultivars; Acyrthosiphon; Aphis craccivora; Sitona; Therioaphis trifolii; Pest resistance; Plant breeding; Seed production 143 NAL Call. No.: 421 J822 Evaluation of selected corn plant introductions for silk-feeding resistance to corn earworm (Lepidoptera: Noctuidae). Wilson, R.L. College Park, Md. : Entomological Society of America; 1987 Oct. Journal of economic entomology v. 80 (5): p. 1048-1050; 1987 Oct. Includes references. Language: English Descriptors: Iowa; Zea mays; Lines; Heliothis zea; Pest resistance; Screening; Plant introduction 144 NAL Call. No.: SB599.C8 Evaluation of soybean genotypes for field resistance to stink bugs in Nigeria. Jackai, L.E.N.; Dashiell, K.E.; Bello, L.L. Guildford, Eng. : Butterworths; 1988 Feb. Crop protection v. 7 (1): p. 48-54; 1988 Feb. Includes references. Language: English Descriptors: Nigeria; Glycine max; Genotypes; Pest resistance; Nezara viridula; Piezodorus; Plant damage; Yield losses 145 NAL Call. No.: 500 M697 Evaluation of soybean plant introductions for resistance to foliar feeding insects. Gary, D.J.; Lambert, L.; Ouzts, J.D. Jackson, Miss. : The Academy; 1985. Journal of the Mississippi Academy of Sciences v. 30: p. 67-82; 1985. Includes references. Language: English Descriptors: Glycine max; Genotypes; Pest resistance; Evaluation 146 NAL Call. No.: 421 J822 Evaluation of tropical and subtropical corn lines for resistance to second-generation European corn borer (Lepidoptera: Pyralidae). Kim, S.K.; Guthrie, W.D.; Hallauer, A.R.; Russell, W.A.; Brewbaker, J.L.; Hong, C.S. Lanham, Md. : Entomological Society of America; 1989 Aug. Journal of economic entomology v. 82 (4): p. 1245-1250; 1989 Aug. Includes references. Language: English Descriptors: Zea mays; Subtropical crops; Tropical crops; Germplasm; Inbred lines; Pest resistance; Ostrinia nubilalis Abstract: Open-pedigree corn (Zea mays L.) inbred lines with tropical (38 lines), subtropical (55 lines), and temperature (27 lines) origins were evaluated for resistance to second-generation European corn borer. Ostrinia nubilalis Hubner. Five plants in each plot were infested during anthesis with 10 applications of 50 larvae or 500 per plant. Relative ratings for resistance were taken 50-60 d after anthesis based on a nine-point rating scale (1, no sheath collar feeding damage to 9, severe damage). Differences among mean resistant ratings of the 120 lines were significant; higher resistance was associated with lines having tropical and subtropical germplasm. Twenty-two lines had resistance ratings less than 3.5, and most included either tropical or subtropical germplasm. Resistant ratings were correlated significantly with days to anthesis and silking and plant and ear height. Transfer of the resistant genes from the tropical germplasm to temperate germplasm should be done with caution because of their sensitivity to photoperiodism. 147 NAL Call. No.: 500 M697 Evaluation of wild soybean, Glycine soja, for resistance to foliar feeding insects. McKenna, T.; Lambert, L.; Ouzts, J.D.; Kilen, T.C. Booneville, Miss. : The Academy; 1988. Journal of the Mississippi Academy of Sciences v. 33: p. 17-24; 1988. Includes references. Language: English Descriptors: Glycine max; Genetic resources; Genotypes; Plant breeding; Pest resistance; Anticarsia gemmatalis; Heliothis zea; Pseudoplusia includens; Spodoptera exigua 148 NAL Call. No.: 64.8 C883 Evidence for different genes controlling insect resistance in three soybean genotypes. Kilen, T.C.; Lambert, L. Madison, Wis. : Crop Science Society of America; 1986 Sep. Crop science v. 26 (5): p. 869-871; 1986 Sep. Includes references. Language: English Descriptors: Glycine max; Genotypes; Anticarsia gemmatalis; Genes; Pest resistance; Pest control; Germplasm; Crosses 149 NAL Call. No.: 500 AM322A Evolutionary biology and genetically engineered crops. Gould, F. Washington, D.C. : The Institute; 1988. BioScience - American Institute of Biological Sciences v. 38 (1): p. 26-33; 1988. Includes references. Language: English Descriptors: Crops; Biological techniques; Genetic engineering; Evolution; Integrated pest management; Pest resistance 150 NAL Call. No.: 64.8 C883 Expression and inheritance of resistance of ELS 6404-160 durum wheat to Hessian fly. Mass, F.B. III; Patterson, F.L.; Foster, J.E.; Ohm, H.W. Madison, Wis. : Crop Science Society of America; 1989 Jan. Crop science v. 29 (1): p. 23-28; 1989 Jan. Includes references. Language: English Descriptors: Ethiopia; Triticum durum; Resistance to injurious factors; Mayetiola destructor; Biotypes; Gene expression; Heritability; Controlling genes; Progeny testing; Temperatures Abstract: ELS 6404-160, CI 17647, a durum wheat (Triticum durum Desf.) introduction from Ethiopia, was found resistant to several biotypes of Hessian fly [Mayetiola destructor (Say)]. Additional genes for resistance are needed for breeding wheat for resistance to the Hessian fly. Research was conducted on a random plant (designated as Selection 5) of ELS 6404-160. Our objectives were to determine (i) the number of genes in ELS 6404-160-5 controlling resistance to biotypes B and D, (ii) if the gene(s) are different from known genes effective against biotypes B, D, and L, (iii) the pattern of resistance of ELS 6404-160-5 to biotypes B,C,D, and L, and (iv) the effectiveness of the resistance at three temperature regimes. Test cross progeny and F3 line analyses, conducted in greenhouses or growth chambers, indicated that ELS 6404-160-5 has two genes for resistance which are different from other genes known to provide resistance to biotypes D and L. Segregation of test cross progeny rows in a three segregating to one susceptible ratio following the test cross of ELS 6404-160-5 with susceptible D6647 indicated that resistance was governed by two genes. The occurrence of susceptible test cross progenies in test crosses following crosses of ELS 6404-160-5 with genotypes with known genes for resistance to biotype D indicated that the genes in ELS 6404-160-5 were different than those previously described. ELS 6404-160-5 is resistant to biotypes B, C, D, and L and resistance is quite stable to biotype D at three temperatures. The genes from ELS 6404-160-5 are designated H14 and H15. Gene H15 is closely associated with H9 on chromosome 5A; H14 may be linked to or independent of H10, which is on chromosome 5A. 151 NAL Call. No.: 64.8 C883 Expression and inheritance of resistance of 'Marquillo' wheat to Hessian fly biotype D. Maas, F.B. III; Patterson, F.L.; Foster, J.E.; Hatchett, J.H. Madison, Wis. : Crop Science Society of America; 1987 Jan. Crop science v. 27 (1): p. 49-52; 1987 Jan. Includes references. Language: English Descriptors: Triticum aestivum; Mayetiola destructor; Temperatures; Gene expression; Inheritance; Pest resistance; Dominant genes; Biotypes; Biological control; Genetics 152 NAL Call. No.: QL461.I57 Expression and stability of soybean resistance to agromyzid beanflies. Chiang, H.S.; Norris, D.M. Oxford, Eng. : Pergamon Press; 1985. Insect science and its application v. 6 (3): p. 265-270. ill; 1985. Includes references. Language: English Descriptors: Glycine max; Melanagromyza; Ophiomyia; Pest resistance; Expressivity; Stability 153 NAL Call. No.: QH506.U34 Expression of a Bacillus thuringiensis insecticidal crystal protein gene in tobacco plants. Adang, M.J.; Firoozabady, E.; Klein, J.; DeBoer, D.; Sekar, V.; Kemp, J.D.; Murray, E.; Rocheleau, T.A.; Rashka, K.; Staffeld, G. New York, N.Y. : Alan R. Liss; 1987. UCLA symposia on molecular and cellular biology v. 48: p. 345-353. ill; 1987. In the series analytic: Molecular Strategies for Crop Protection / edited by Charles J. Arntzen and Clarence Ryan. Proceedings of a Symposium held Mar 30-Apr 6, 1986, Steamboat Springs, Colorado. Includes references. Language: English Descriptors: Nicotiana tabacum; Insect pests; Insect control; Biological control; Bacillus thuringiensis; Proteins; Gene expression; Crystals; Pest resistance; Larvae 154 NAL Call. No.: SB950.M36 Factors affecting resistance of rice varieties to planthopper and leafhopper pests. Saxena, R.C.; Khan, Z.R. Andover, Hampshire, U.K. : Intercept; 1989. Management and control of invertebrate crop pests / editor, Gordon E. Russell. p. 59-94. ill; 1989. Literature review. Includes references. Language: English Descriptors: Oryza sativa; Screening; Varietal resistance; Crop damage; Leafhoppers; Planthoppers; Biotypes; Disease vectors; Literature reviews 155 NAL Call. No.: QL461.E532 Feeding activity of Sitophilus zeamais (Coleoptera: Curculionidae) on resistant and susceptible corn genotypes. Tipping, P.W.; Rodriguez, J.G.; Poneleit, C.G.; Legg, D.E. College Park, Md. : Entomological Society of America; 1986 Jun. Environmental entomology v. 15 (3): p. 654-658. ill; 1986 Jun. Includes references. Language: English Descriptors: Zea mays; Genotypes; Sitophilus zeamais; Seeds; Pest resistance; Feeding behavior; Pest control 156 NAL Call. No.: 421 J822 Feeding activity of the maize weevil (Coleoptera: Curculionidae) on two dent corn lines and some of their mutants. Tipping, P.W.; Rodriguez, J.G.; Poneleit, C.G.; Legg, D.E. College Park, Md. : Entomological Society of America; 1988 Jun. Journal of economic entomology v. 81 (3): p. 830-833. ill; 1988 Jun. Includes references. Language: English Descriptors: Kentucky; Zea mays; Genotypes; Inbred lines; Mutants; Sitophilus zeamais; Feeding behavior; Oviposition Abstract: Corn genotypes that naturally differ only in their endosperm constitution because of mutation were used to examine the feeding and oviposition activities of the maize weevil (MW), Sitophilus zeamais Motschulsky. The genotypes were A632 (resistant to MV) and W64A (susceptible) and their associated mutants. Differences in the amounts of shallow and deep feeding by MW were found to be consistent within a corn genotypic group with genetically identical pericarp tissue, despite quite different endosperm types. Oviposition was more highly correlated with the number of deep feeding sites in the A632 group and with the number of shallow sites in the W64A group. Feeding activity appeared to be higher in the W64A group having thefloury-2 and opaque-2 mutants, which have higher than normal lysine and tryptophan in the endosperm. The waxy and amylose extender mutants, which are thought tocontain greater than normal amounts of feeding stimulants and deterrents, did not affect feeding activity and oviposition. Endosperm characteristics may have influenced the texture of the pericarp in some cases. 157 NAL Call. No.: QL461.E532 Feeding behavior, fecundity, and honeydew production of two biotypes of greenbug (Homoptera: Aphididae) on resistant and susceptible wheat. Ryan, J.D.; Dorschner, K.W.; Girma, M.; Johnson, R.C.; Eikenbary, R.D. College Park, Md. : Entomological Society of America; 1987 Jun. Environmental entomology v. 16 (3): p. 757-763; 1987 Jun. Includes references. Language: English Descriptors: Oklahoma; Triticum aestivum; Genotypes; Schizaphis graminum; Biotypes; Feeding behavior; Pest resistance; Fecundity; Honeydew; Plant damage 158 NAL Call. No.: 420 F662 Feeding responses of fall armyworm larvae on excised green and yellow whorl tissue of resistant and susceptible corn. Wiseman, B.R.; Isenhour, D.J. Gainesville, Fla. : Florida Entomological Society; 1988 Sep. Florida entomologist v. 71 (3): p. 243-249. ill; 1988 Sep. Paper presented at the "Fall Armyworm Symposium", 1988. Includes references. Language: English Descriptors: Zea mays; Tissues; Susceptibility; Pest resistance; Spodoptera frugiperda; Larvae; Feeding behavior 159 NAL Call. No.: 59.8 M45 Field and laboratory evaluation of selected maize plant introductions for corn earworm responses at two locations. Wilson, R.L.; Wiseman, B.R. Bergamo : Istituto sperimentale per la cerealicoltura; 1988. Maydica v. 33 (3): p. 179-187; 1988. Includes references. Language: English Descriptors: Georgia; Iowa; Zea mays; Plant introduction; Lines; Pest resistance; Heliothis zea; Germplasm; Selection criteria; Selection methods; Performance testing; Larvae; Diets; Bioassays; Growth rate 160 NAL Call. No.: 64.8 C883 Field evaluation of glanded and glandless cotton (Gossypium hirsutum L.) lines for boll weevil (Anthonomus grandis Boh.) susceptibility. Jenkins, J.N.; Maxwell, F.G.; Parrott, W.L. Madison, Wis. : Crop Science Society of America; 1967 Sep. Crop science v. 7 (5): p. 437-440; 1967 Sep. Includes references. Language: English Descriptors: Gossypium hirsutum; Genotypes; Plant glands; Pest resistance; Anthonomus grandis 161 NAL Call. No.: 64.8 C883 Field evaluation of soybean for Mexican bean beetle resistance. II. Maturity groups III, IV, and V. Kraemer, M.E.; Rangappa, M.; Mebrahtu, T.; Benepal, P.S. Madison, Wis. : Crop Science Society of America; 1990 Mar15. Crop science v. 30 (2): p. 374-377; 1990 Mar15. Includes references. Language: English Descriptors: Virginia; Glycine max; Pest resistance; Defoliation; Epilachna varivestis; Screening tests; Germplasm; Maturity groups; Plant introduction; Lines Abstract: Field screening of soybean, Glycine max (L.) Merr., germplasm for resistance to insect defoliation was undertaken because of the narrow genetic base currently available to plant breeders and the lack of a comprehensive screening for resistance in most maturity groups (MGs). This study was conducted to evaluate plant introductions (PIs) in MGs III, IV, and V for resistance to defoliation by Mexican bean beetle (MBB), Epilachna varivestis Mulsant. All available PIs were screened to 475822C, 476914, and 424553 in MGs III, IV, and V, respectively, at the Randolph Research Farm of Virginia State University, Petersburg, VA. Resistance was determined by visually estimating the percent defoliation by MBB. Soybean accessions were initially screened in 2-m rows. Selections from these screenings were twice retested in triplicate. Maturity Group V contained most of the resistant germplasm, including PIs 423901-1, 417235 ('Ouu 3'), and 200450 ('Akita Ahi'). However, two breeding lines (L76-0132 and L76-0049), derived from the highly resistant PI 171451 in MG VII, had the least defoliation in MG V. Three moderately resistant PIs (360847 ['Shiromeyntaka'], 248511 ['Hakuho No. 1'], and 407820) were found in MG IV. PI 417152 ('Mikuri 42') (MG III) also showed some resistance. Higher levels of insect resistance appear to be present in later maturity group soybean germplasm. 162 NAL Call. No.: 64.8 C883 Field evaluation of soybeans for Mexican bean beetle resistance. I. Maturity groups VI, VII, and VIII. Kraemer, M.E.; Rangappa, M.; Benepal, P.S.; Mebrahtu, T. Madison, Wis. : Crop Science Society of America; 1988 May. Crop science v. 28 (3): p. 497-499; 1988 May. Includes references. Language: English Descriptors: Virginia; Glycine max; Epilachna varivestis; Cultivars; Insect pests; Pest resistance; Breeding programs; Field tests 163 NAL Call. No.: 8 P832J Field evaluations of pigeon pea genotypes for resistance against pod borers. Armstrong, A.M. Rio Piedras, R.R. : University of Puerto Rico, Agricultural Experiment Station; 1991 Jan. The Journal of agriculture of the University of Puerto Rico v. 75 (1): p. 73-79; 1991 Jan. Includes references. Language: English Descriptors: Puerto Rico; Pisum sativum; Cultivars; Genotypes; Lines; Pest resistance; Pods; Boring insects; Crop damage; Etiella zinckenella; Heliothis virescens; Field tests 164 NAL Call. No.: SB249.N6 Field performance of some new cotton strains with resistance to Heliothis spp. Jones, J.E.; Burris, E.; Caldwell, W.D.; Marshall, J.G.; Dickson, J.I.; Clower, D.F. Memphis, Tenn. : National Cotton Council and The Cotton Foundation; 1987. Proceedings - Beltwide Cotton Production Research Conferences. p. 94-96; 1987. Includes references. Language: English Descriptors: Gossypium hirsutum; Strains; Resistance to injurious factors; Heliothis; Agronomic characteristics; Breeding methods; Germplasm releases 165 NAL Call. No.: SB599.C8 Field resistance in three bread wheat lines to the Russian wheat aphid, Diuraphis noxia (Hemiptera: Aphididae). Du Toit, F. Guildford : Butterworths; 1990 Aug. Crop protection v. 9 (4): p. 255-258; 1990 Aug. Includes references. Language: English Descriptors: South Africa; Triticum aestivum; Lines; Cultivars; Pest resistance; Varietal susceptibility; Hemiptera; Plant damage; Crop growth stage; Seedlings; Maturity stage; Greenhouse experimentation; Field experimentation; Symptoms 166 NAL Call. No.: SB351.C45I52 Field screening of chickpea genotypes for resistance to Heliothis armigera. Lateef, S.S.; Bhagwat, V.R.; Reed, W. Patancheru : International Crops Research Institute; 1985 Dec. International chickpea newsletter (13): p. 29-32; 1985 Dec. Includes statistical data. Language: English Descriptors: Andhra pradesh; Cicer arietinum; Genotypes; Heliothis armigera; Pest resistance; Screening; Crop damage 167 NAL Call. No.: QL461.I57 Field screening of pearl millet cultivars in relation to insects and diseases. Gahukar, R.T. Nairobi, Kenya : ICIPE Science Press; 1990. Insect science and its application v. 11 (1): p. 13-19; 1990. Includes references. Language: English Descriptors: Sahel; Pennisetum americanum; Coniesta ignefusalis; Heliocheilus albipunctella; Tolyposporium penicillariae; Pest resistance; Disease resistance; Cultivars; Screening Abstract: Thirty-five pearl millet cultivars of short, medium and long maturity cycle were screened in Senegal during 1985-1986 crop seasons to study field reaction to the attack of stalk borer, Coniesta (Acigona) ignefusalis Hmps.; spike worm, Heliocheilus (Raghuva) albipunctella De Joannis; millet midge, Geromyia penniseti Felt; head smut, Tolysporium penicillariae Bref; and ergot, Claviceps fusiformis Lov. Insect and disease incidence varied considerably depending upon cultivar maturity cycle. Least susceptible cultivars were IBV-8001 and P8 against spike worm; Zalla, NKK, P8 and M2D2 against head smut, and Ex-Darou against ergot Cultivation of IBV-8001 has been suggested in northern and central Senegal. However, studies on identification and utilization of resistance sources of wide genetic diversity and multilocational tests may be necessary. 168 NAL Call. No.: 421 J822 Field screening sorghum for resistance to sorghum midge (Diptera: Cecidomyiidae). Sharma, H.C.; Vidyasagar, P.; Leuschner, K. Lanham, Md. : Entomological Society of America; 1988 Feb. Journal of economic entomology v. 81 (1): p. 327-334; 1988 Feb. Includes references. Language: English Descriptors: Andhra pradesh; India; Sorghum bicolor; Cultivars; Pest resistance; Screening; Contarinia sorghicola; Sprinkler irrigation Abstract: Various techniques to increase infestation and improve efficiency of screening sorghum for sorghum midge, Contarinia sorghicola (Coquillett), resistance were tested at ICRISAT Center. Adjustment of planting dates to synchronize flowering with period of peak abundance of adult midges, planting infester rows of susceptible cultivars ('CSH 1' and 'CSH 5') 20 d before test cultivars, spreading midge-damaged sorghum panicles containing diapausing midge larvae in infester rows, and using sprinkler irrigation during flowering in the postrainy season helped to increase midge abundance. Careful and selective use of contact insecticides to control head bug, Calocoris angustatus Lethiery, and midge parasite Tetrastichus diplosidis Crawther was useful in screening and selecting sorghum cultivars for midge resistance. Planting two sets of test material at fortnightly intervals helped to reduce chances that sorghum would escape midge damage. Maintaining thin plant stands also increased midge damage by preventing population dilution due to fewer numbers of panicles per unit area. 169 NAL Call. No.: QL461.E532 Foliage consumption and development of the fall armyworm (Lepidoptera: Noctuidae) as affected by the interactions of a parasitoid, Campoletis sonorensis (Hymenoptera: Ichneumonidae), and resistant corn genotypes. Isenhour, D.J.; Wiseman, B.R. College Park, Md. : Entomological Society of America; 1987 Oct. Environmental entomology v. 16 (5): p. 1181-1184; 1987 Oct. Includes references. Language: English Descriptors: Georgia; Zea mays; Genotypes; Spodoptera frugiperda; Campoletis sonorensis; Pest resistance; Feeding; Behavior; Parasites of insect pests; Development 170 NAL Call. No.: 421 J822 Foliage consumption and developmental parameters of the soybean looper and the velvetbean caterpillar (Lepidoptera: Noctuidae) reared on susceptible and resistant soybean genotypes. Beach, R.M.; Todd, J.W. Lanham, Md. : Entomological Society of America; 1988 Feb. Journal of economic entomology v. 81 (1): p. 310-316; 1988 Feb. Includes references. Language: English Descriptors: Georgia; Glycine max; Cultivars; Genotypes; Pest resistance; Anticarsia gemmatalis; Pseudoplusia includens Abstract: Larvae of the soybean looper (SBL), Pseudoplusia includens (Walker), and the velvetbean caterpillar (VBC), Anticarsia gemmatalis Hubner, were restricted to a diet of foliage from either insect-resistant (PI 229358 or GatIR 81-296) or susceptible ('GaSoy 17') soybean genotypes. Decreased growth rate and increased development times were observed for early and late instar SBL developing on the resistant genotypes. Foliage consumption and weight gain measured during the period from the fifth through the ultimate stadium were also significantly reduced. Mortality of SBL larvae was greatest on GatIR 81-296. Although early growth and development of VBC during early stadia were slowed by the resistant genotypes, consumption, weight gain, and growth rates from the fifth through the ultimate stadium on the resistant genotypes were equal to or greater than those on the susceptible genotype. Larval weights of both SBL and VBC taken after five and eight days of development gave an accurate and time- efficient measurement of resistance. Pupal weights were significantly lower when SBL were reared on resistant genotypes; however, VBC pupal weights were similar on all three genotypes. An increased incidence of supernumerary stadia was noted in larvae of both species restricted to resistant genotypes. 171 NAL Call. No.: 421 EN835 Foliage consumption and larval development of parasitized and unparasitized soybean looper, Pseudoplusia includens (Lepidoptera: Noctuidae), reared on a resistant soybean genotype and effects on an associated parasitoid, Copidosoma truncatellum (Hymenoptera: Encyrtidae). Beach, R.M.; Todd, J.W. Paris : Lavoisier Abonnements; 1986. Entomophaga v. 31 (3): p. 237-242; 1986. Includes references. Language: English Descriptors: Georgia; Glycine max; Cultivars; Crop damage; Genotypes; Pseudoplusia includens; Biological control; Copidosoma truncatellum; Parasites of insect pests; Varietal susceptibility 172 NAL Call. No.: 450 P5622 Free amino acids in the phloem sap from oats and barley resistant to Rhopalosiphum padi. Weibull, J.H.W. Oxford : Pergamon Press; 1988. Phytochemistry v. 27 (7): p. 2069-2072; 1988. Includes references. Language: English Descriptors: Hordeum; Avena; Rhopalosiphum padi; Phloem; Sap; Amino acids; Pest resistance; Cultivars 173 NAL Call. No.: 1 Ag84Te no.1004 Further differentiation of genetic factors in wheat for resistance to the Hessian fly. Suneson, Coit A.; Noble, W. B. Washington : U.S. Dept. of Agriculture; 1950; A 1.36-1004. 8 p. ; 23 cm. (Technical bulletin / United States Department of Agriculture ; no. 1004). Caption title. Literature cited: p. 7-8. Language: English Descriptors: Wheat--Disease and pest resistance; Hessian flies 174 NAL Call. No.: 64.8 C883 Gene H16 in wheat for resistance to Hessian fly. Patterson, F.L.; Foster, J.E.; Ohm, H.W. Madison, Wis. : Crop Science Society of America; 1988 Jul. Crop science v. 28 (4): p. 652-654; 1988 Jul. Includes references. Language: English Descriptors: Triticum durum; Mayetiola destructor; Biotypes; Insect pests; Pest resistance; Genes; Genetic transformation; Backcrossing Abstract: PI 94587 durum wheat, Triticum durum Desf., has resistance to biotype L of Hessian fly, Mayetiola destructor (Say) that has not been genetically characterized. Two genes, H6 and H11 from PI 94587, have been transferred into separate lines and characterized previously. Lines with H6 or H11 do not have resistance to biotype L that PI 94587 has. Our objectives were to transfer the gene(s) responsible for resistance to biotype L from PI 94587 to a susceptible line, and to determine if the gene(s) was different from known genes providing resistance to biotype L. We used standard greenhouse and growth chamber methods of analysis to determine resistance of seedling progenies to biotypes D and L of Hessian fly. A single partially dominant gene pair providing resistance to biotype L was transferred from PI94 587 to a previously susceptible durum wheat line ND D6647. Genetic studies indicated the new gene was not H9, H14, or H15. Reactions to biotypes, B, C, D, and L indicated it was not H10, or the 'Marquillo' gene. The newly isolated gene is designated H16. 175 NAL Call. No.: 421 J822 Generation mean analysis for resistance in maize to the corn leaf aphid (Homoptera: Aphididae). Bing, J.W.; Guthrie, W.D. Lanham, Md. : Entomological Society of America; 1991 Jun. Journal of economic entomology v. 84 (3): p. 1080-1082; 1991 Jun. Includes references. Language: English Descriptors: Zea mays; Crosses; Genetic effects; Genotypes; Pest resistance; Rhopalosiphum maidis Abstract: Corn leaf aphids [Rhopalosiphum maidis (Fitch)] can be a serious pest of maize, Zea mays L. Because very, little is known about the genetics of corn leaf aphid resistance in maize, a generation mean analysis was conducted on nine generations of maize [P1, B96 (susceptible); P2, Mo17 (resistant); F1; F2; F3; BC1; BC2; BS1; and BS2] to determine the type of gene action involved. The model that included additive and dominant effects explained 64.8% of the total variation among generations, whereas the model that included additive, dominant, and epistatic effects did not significantly improve the fit. The estimate of the additive genetic effects was most important, indicating that several loci contributed resistance to the corn leaf aphid. Dominant genetic effects were significant, but not as important as additive effects. Residuals remaining after fitting for additive and dominance effects were significant, indicating that more complicated genetic mechanisms may be involved. 176 NAL Call. No.: SB351.P3P39 Genetic analysis of trichome characters associated with resistance to jassid (Empoasca kerri Pruthi) in peanut. Dwivedi, S.L.; Amin, P.W.; Rasheedunisa; Nigam, S.N.; Nagabhushanam, G.V.S.; Rao, V.R.; Gibbons, R.W. Raleigh : American Peanut Research and Education Society; 1986 Jan. Peanut science v. 13 (1): p. 15-18; 1986 Jan. Includes references. Language: English Descriptors: Arachis hypogaea; F1 hybrids; Diallel crossing; Insect pests; Resistance; Empoasca; Trichomes; Inheritance; Genetic variance; General combining ability; Breeding programs 177 NAL Call. No.: 100 AR42F Genetic and biological pest control in cotton and soybean. Bourland, F.M.; Caviness, C.E. Fayetteville, Ark. : The Station; 1990 May. Arkansas farm research - Arkansas Agricultural Experiment Station v. 39 (3): p. 7. ill; 1990 May. Language: English Descriptors: Gossypium; Glycine max; Insects; Biological control; Genetic control; Breeding aims; Resistance 178 NAL Call. No.: QL461.I57 Genetic divergence for resistance to shootfly, Atherigona soccata Rond. in sorghum, Sorghum bicolor (L.) Moench and its relationship with heterosis. Omori, T.; Agrawal, B.L.; House, L.R. Oxford : Pergamon Press; 1988. Insect science and its application v. 9 (4): p. 483-488; 1988. Includes references. Language: English Descriptors: Sorghum bicolor; Cultivars; Atherigona soccata; Pest resistance; Genetic variation; Provenance; Heterosis; Taxonomy; Trichomes; Genetic distance 179 NAL Call. No.: SB191.W5I5 1988 Genetic diversity in wheat relatives for disease and insect resistance. Raupp, W.J.; Gill, B.S.; Browder, L.E.; Harvey, T.L.; Hatchett, J.H.; Wilson, D.L. Cambridge : Published by the Institute of Plant Science Research, Cambridge Laboratory; 1988. Proceedings of the Seventh International Wheat Genetics Symposium / edited by T.E. Miller and R.M.D. Koebner. p. 879-884; 1988. Includes references. Language: English Descriptors: Triticum; Species; Aegilops squarrosa; Germplasm; Evaluation; Resistance; Puccinia recondita; Mayetiola destructor; Schizaphis graminum 180 NAL Call. No.: SB123.57.L93 Genetic engineering of crops for insect resistance using genes of plant origin. Hilder, V.A.; Gatehouse, A.M.R.; Boulter, D. Boston : Butterworths; 1990. Genetic engineering in crop plants / edited by G.W. Lycett, D. Grierson. p. 51-66. ill; 1990. Paper presented at the "49th Nottingham Easter School in Agricultural Science on Agricultural Engineering of Crop Plants," April 17-21, Sutton Bonington, United Kingdom. Includes references. Language: English Descriptors: Crops; Genetic engineering; Breeding aims; Resistance; Insect pests 181 NAL Call. No.: 100 L9333 Genetic enhancement of pest resistant cotton germplasm 1988. Jones, J.E.; Caldwell, W.D.; Micinski, S.; Holoubek, B.B.; Dickson, J.I.; Aguillard, W. Bossier City, La. : The Station; 1989-1990. Annual research report - Red River Research Station. p. 28-35; 1989-1990. Language: English Descriptors: Louisiana; Gossypium; Breeding; Programs; Pest resistance; Insect pests 182 NAL Call. No.: 421 J822 Genetic evaluation for resistance to rice thrips (Thysanoptera: Thripidae) in leafhopper- and planthopper-resistant rice varieties. Velusamy, R.; Saxena, R.C. Lanham, Md. : Entomological Society of America; 1991 Apr. Journal of economic entomology v. 84 (2): p. 664-668; 1991 Apr. Includes references. Language: English Descriptors: Oryza sativa; Varietal resistance; Crop damage; Cultivars; Genetic analysis; Nephotettix virescens; Nilaparvata lugens; Sogatella furcifera; Fecundity; Oviposition; Population growth; Survival Abstract: Resistance to rice thrips, Stenchaetothrips biformis (Bagnall), was evaluated in rice, Oryza sativa L., varieties possessing diverse genes for resistance to the green leafhopper Nephotettix virescens (Distant), and planthoppers Sogatella furcifera (Horvath) and Nilaparvata lugens (Stal). Distinct differences in levels of thrips resistance were observed in bulk seedling tests. Resistant varieties were less preferred for oviposition. Duration of adult survival and population increases was significantly less on resistant varieties than on susceptible ones. The steam distillate extract of a resistant variety 'Ptb 21' was highly toxic to first instar S. biformis. 183 NAL Call. No.: HT401.S72 Genetic improvement of alfalfa for resistance to the alfalfa weevil. Panton, C.A. Mississippi State, Miss. : The Center; 1987 May. SRDC series - Southern Rural Development Center (92): p. 103-104; 1987 May. Language: English Descriptors: Alfalfa; Breeding programs; Pest resistance; Coleoptera 184 NAL Call. No.: 421 J822 Genetic resistance of tropical corn inbreds to second-generation European corn borer (Lepidoptera: Pyralidae). Kim, S.K.; Hallauer, A.R.; Guthrie, W.D.; Barry, D.; Lamkey, K.R.; Hong, C.S. Lanham, Md. : Entomological Society of America; 1989 Aug. Journal of economic entomology v. 82 (4): p. 1207-1211; 1989 Aug. Includes references. Language: English Descriptors: Zea mays; Diallel crossing; Inbred lines; Pest resistance; Ostrinia nubilalis Abstract: Diallel crosses among five resistant (Tz14, Narino330, Hi34, Hi29, Ant.C5) and four susceptible (Hi32, Tx601, B73, Oh43) maize, Zea mays L., inbreds were used to determine the genetic control of resistance to damage by second-generation European corn borer, Ostrinia nubilalis Hubner. The nine parents and their 36 crosses each received 10 applications of 50 larvae (500 larvae per plant). Six replications of five plants per plot were infested at anthesis. Visual ratings were taken of sheath and collar tissue 50 to 60 d after infestation based on a nine-point rating scale (1, no damage to 9, severe damage). Significant differences for resistance were observed among the nine parents and the 36 crosses. Ratings of individual crosses varied significantly and averaged 3.7 with range of 1.8 (Tzi4 x Narino330) to 5.3 (B73 x Oh43). Heterotic effects for resistance of the 36 crosses averaged -19.5%, which was equivalent to a difference of 1.78 on the rating scale. General (GCA) and specific combining ability (SCA) mean squares were significant with GCA accounting for 82 and SCA for 18% of the total variation among crosses. Among the nine parents, four (Tzi4, Narino330, Hi34, Ant.C5) showed greater GCA effects for resistance. 185 NAL Call. No.: 64.8 C883 Genetic resistance to boll weevil oviposition in primitive control. McCarty, J.C. Jr; Jenkins, J.N.; Parrott, W.L. Madison, Wis. : Crop Science Society of America; 1987 Mar. Crop science v. 27 (2): p. 263-264; 1987 Mar. Includes references. Language: English Descriptors: Gossypium hirsutum; Resistance to parasites; Anthonomus grandis; Oviposition; Photoperiodism; Progeny testing; Backcrossing Abstract: Boll weevil (Anthonomus grandis Boheman) resistance was identified in several photoperiodic primitive accessions of cotton (Gossypium hirsutum L.) in the early 1970s. Two of these primitive accessions. T-326, and T-1180, were each crossed to 'Deltapine 16' and progeny with day-neutral (DN) flowering habit were selected. These progeny were then backcrossed twice to their respective primitive parent and selected for day neutrality after each backcross. The resulting progenies were evaluated for boll weevil oviposition using a new laboratory technique. Significantly less oviposition was found on BC2F4 progeny of T-326(DN) and T-1180(DN) than on the control 'Stoneville 213'. These progeny expressed resistance as 57 and 54% as much oviposition, respectively, as on Stoneville 213 in the laboratory test; resistance also was noted by others in field tests. The level of boll weevil resistance found in the progenies of T-326(DN) and T-1180(DN), when combined with acceptable agronomic performance, should be of value in pest management. 186 NAL Call. No.: 450 C16 Genetic sources of resistance to blackbird predation in sunflower. Parfitt, D.E.; Fox, G.J. Ottawa : Agricultural Institute of Canada; 1986 Jan. Canadian journal of plant science; Revue canadienne de phytotechnie v. 66 (1): p. 19-23; 1986 Jan. Includes references. Language: English Descriptors: Helianthus annuus; Blackbirds; Pest resistance; Genetic factors; Heritability 187 NAL Call. No.: QL461.I57 Genetic variation of stem-borer resistance and tolerance in three sorghum crosses. Pathak, R.S. Oxford, Eng. : Pergamon Press; 1985. Insect science and its application v. 6 (3): p. 359-364; 1985. Includes references. Language: English Descriptors: Sorghum; Chilo partellus; Pest resistance; Tolerances; Heritability; Genetic variation; Selective advantage; Selective breeding; Plant damage 188 NAL Call. No.: 64.8 C883 Genetics of antibiosis resistance to Mexican bean beetle in soybean. Rufener, G.K. II; St Martin, S.K.; Cooper, R.L.; Hammond, R.B. Madison, Wis. : Crop Science Society of America; 1989 May. Crop science v. 29 (3): p. 618-622; 1989 May. Includes references. Language: English Descriptors: Glycine max; Pest resistance; Inheritance; Epilachna varivestis; Crosses; Generations; Progeny testing; Heritability; Genetic gain; Controlling genes Abstract: A larval antibiosis screening technique was applied to three soybean [Glycine max (L.) Merr.] populations to determine the inheritance of resistance to Mexican bean beetle [Epilachna varivestis (Mulsant)]. The F1, F2, and F3 generations (five F3 plants per F2 plant) of crosses between 'Williams' (susceptible) and L76-0049, L78-608, and L76-0328 (resistant) were screened along with the parents. Mean weight of surviving larvae after 10 d of feeding on detached leaves was used as the measure of antibiosis. The resistance of F1 plants was intermediate to that of their parents. Data from the F1 of Williams X L76-0049 and Williams X L76-0328 indicated a small degree of dominance for resistance. The distributions of F2 and F3 phenotypes were continuous and unimodal. Skewness toward susceptibility occurred in Williams X L76-0328, but symmetry was evident in the other crosses. Heritability estimates (single F2 plant basis) ranged from 0.33 to 0.48 when calculated from F3 data, and from 0.11 to 0.22 when calculated from the covariance of F2 plants and their F3 progeny. Estimates of heritability derived from F2 and parental data were larger but had large standard errors. Gene number estimates by the method of moments, and frequency of recovery of parental phenotypes suggested that the number of segregating resistance loci was small. Provided selection was no more intense than 2.5%, expected genetic gain from selection among individual F2 plants was greater if a large number of plants were screened with a single determination per plant than if one-half or one-third that number were screened with two or three determinations per plant, respectively. 189 NAL Call. No.: QL483.I4J6 Genetics of ovipositional non-preference and dead-heart formation governing shootfly resistance in sorghum. Sharma, G.C.; Rana, B.S. New Delhi : Malhotra Publishing House; 1985 Jun. Journal of entomological research v. 9 (1): p. 104-105; 1985 Jun. Includes references. Language: English Descriptors: Sorghum; Atherigona soccata; Pest resistance; Recessive genes; Segregation; Oviposition; Progeny testing 190 NAL Call. No.: 421 J822 Genetics of resistance in maize to a complex of three species of thrips (Thysanoptera: Thripidae). Bing, J.W.; Dicke, F.F.; Guthrie, W.D. Lanham, Md. : Entomological Society of America; 1990 Apr. Journal of economic entomology v. 83 (2): p. 621-624; 1990 Apr. Includes references. Language: English Descriptors: Iowa; Zea mays; Combining ability; Diallel analysis; Inbred lines; Pest resistance; Crop damage; Frankliniella; Frankliniella fusca; Thrips; Population dynamics Abstract: During summer 1988, a heavy infestation of thrips, Anaphothrips obscurus (Mueller), Frankliniella fusca (Hinds), and F. tenuicornis (Uzel) occurred on maize, Zea mays L., allowing for evaluation of resistance in 10 inbred maize lines. Thrips populations peaked at the end of June, and evaluations of the damage were taken at this time. Inbred 41:2504B had the smallest thrips Population, B37 had the largest population, and Mol7, C103, and B73 were intermediate. A 10-inbred-line diallel cross, based on damage caused by leaf-feeding, showed that variations due to general combining ability (GCA) and specific combining ability (SCA) were highly significant. Variation due to GCA, however, was 14 times greater than that for SCA, indicating that additive genetic effects were more important than nonadditive effects. The inbred 41:2504B was the most resistant and best general combiner, whereas C103 was the most susceptible to thrips damage. 191 NAL Call. No.: 64.8 C883 Genetics of resistance of PI 422297 durum wheat to the Hessian fly. Obanni, M.; Ohm, H.W.; Foster, J.E.; Patterson, F.L. Madison, Wis. : Crop Science Society of America; 1989 Mar. Crop science v. 29 (2): p. 249-252; 1989 Mar. Includes references. Language: English Descriptors: Triticum durum; Pest resistance; Mayetiola destructor; Biotypes; Controlling genes; Gene expression; Linkage; Allelism Abstract: The durum wheat (Triticum durum Desf.) PI 422297 was selected for genetic studies because of its resistance to Biotypes B, C, D, and L of the Hessian fly, Mayetiola destructor (Say). The objectives of this study were to determine the number of genes controlling the resistance of PI 422297 to Biotype D, and to establish the allelic relationships or independence of these genes to currently known genes that confer resistance against this biotype. This experiment was conducted in a controlled environment chamber maintained at 19 +/- 2 degrees C. In testcross analyses, random selfed BC progeny rows between the susceptible parent D6647 and PI 422297 indicated that two genes controlled the expression of this resistance; these two genes are independent of H5, H9, H10, H14, H15, and H17. No fully susceptible progeny rows were observed in the crosses involving H11 and H16 together, or H16 singly, with the two genes in PI 422297. However, the level of resistance of the PI 422297 genes at 26 degrees C indicates that a linkage or allelic relationship is involved between one gene in PI 422297 and H16. Therefore, one of the two genes in PI 422297 is different from all previously known genes for resistance to Biotype D. We designate this gene as H19. The other gene is associated with H16. Additional research is planned to determine whether the second gene of PI 422297 that confers resistance to biotype D of Hessian fly is allelic or linked to H16. 192 NAL Call. No.: QL461.E532 Glossy leaf wax and plant resistance to insects in Brassica oleracea under natural infestation. Stoner, K.A. Lanham, Md. : Entomological Society of America; 1990 Jun. Environmental entomology v. 19 (3): p. 730-739; 1990 Jun. Includes references. Language: English Descriptors: Brassica oleracea; Artogeia rapae; Brevicoryne brassicae; Plutella xylostella; Phyllotreta; Cruciferae; Leaves; Pest resistance; Genetics; Waxes; Line differences Abstract: The glossy cauliflower PI234599 has been shown by other authors to have resistance to three species of Lepidoptera, but the relationship between insect resistance and the glossiness of the leaf surface has been unclear. To examine this relationship in a broader range of Brassica oleracea L., five species of insect pests were counted under natural infestation eight glossy genetic lines of broccoli, cauliflower, brussels sprouts, collards, and kale; six lines reported to have reduced leaf wax; and ten varieties of the same crops with normal leaf wax. Glossy lines consistently had fewer imported cabbageworm, Artogeia rapae (L.), larvae and eggs and fewer cabbage aphids, Brevicoryne brassicae (L.), than other lines. Four of the glossy lines had low numbers of diamondback moth larvae, Plutella xylostella (L.), in all three plantings, but the other four performed differently in separate plantings. Surprisingly, a glossy kale with allelic genes for glossiness to PI234599 had poor resistance to diamondback moth. Glossy lines had the most Phyllotreta cruciferae (Goeze) in one spring planting, but there were no significant differences in the numbers of this species of flea beetle on various lines in the fall planting at the same location. This study identifies additional promising sources of insect resistance among glossy lines of B. oleracea, but further study is needed of the variability in resistance to diamondback moths and flea beetles over repeated plantings and among different glossy lines. 193 NAL Call. No.: aSB205.S7S6 Glycine soja--a source of resistance for Bihar hairy caterpillar Spilosoma (Diacrisia) obliqua Wallace, in soybean. Ram, H.H.; Pushpendra; Singh, K.; Ranjit Ames, Iowa : The Service; 1989 Apr. Soybean genetics newsletter - U.S. Department of Agriculture, Agricultural Research Service v. 16: p. 52-53; 1989 Apr. Includes references. Language: English Descriptors: Glycine soja; Glycine max; Spilosoma obliqua; Lines; Crosses; Pest resistance; Genetic resistance; Inheritance 194 NAL Call. No.: 64.8 C883 Grain sorghum resistance to midge by yield loss vs. visual scores. Peterson, G.C.; Ali, A.E.B.; Teetes, G.L.; Jones, J.W.; Schaefer, K. Madison, Wis. : Crop Science Society of America; 1989 Sep. Crop science v. 29 (5): p. 1136-1140; 1989 Sep. Includes references. Language: English Descriptors: Sorghum bicolor; Cultivars; Pest resistance; Contarinia sorghicola; Plant damage; Rating scales; Crop yield; Yield losses; Plant progeny testing; Assessment Abstract: Biology of the sorghum midge, Contarinia sorghicola (Coquillett), necessitates testing of sorghum, Sorghum bicolor (L.) Moench, cultivars in field plots in multiple locations and/or years to identify resistant genotypes. Using converted exotic sorghum cultivars, this study was conducted to compare visual damage scores across locations and years vs. indirect resistance measurements (percentage yield loss and number of midge per panicle) in a single location and year with two planting dates. Visual damage ratings were made at physiological maturity on the percentage of blasted kernels per panicle in replicated, randomized-complete-block field experiments at three locations in 1983 through 1985. In 1985, indirect measurements and visual damage ratings were made at one location. A significant positive relationship was found between visual midge damage rating and percentage yield loss (r = 0.347), and between visual midge damage rating and midge number (r = 0.220). Percentage yield loss did not increase the reliability of identification of resistant cultivars. Cultivars identified with resistance by both methods were IS8232C, IS8237C, IS8112C, IS2740C, IS3390C, IS7132C, IS2685C, IS957C, IS7193C, IS2144C, and IS12572C. The correlation between percentage yield loss and midge number (r = 0.090) was nonsignificant. Both methods depend on high midge density to differentiate resistant and susceptible genotypes. When midge were not abundant good differentiation was not obtained. Indirect resistance measurements were more time consuming than a single visual rating at maturity, and when multiple years or locations were required, the visual damage rating was a more effective method of germplasm evaluation. 195 NAL Call. No.: 64.8 C883 Grain yield reduction caused by second generation European corn boreer in BS9 corn synthetic. Klenke, J.R.; Russell, W.A.; Guthrie, W.D. Madison, Wis. : Crop Science Society of America; 1986 Sep. Crop science v. 26 (5): p. 859-863; 1986 Sep. Includes references. Language: English Descriptors: Zea mays; Synthetic varieties; Ostrinia nubilalis; Cultivars; Yield losses; Pest control; Pest resistance; Biological control; Plant breeding; Genetic factors; Plant physiology 196 NAL Call. No.: aS21.A8U5/ARS Greenbug damage: seedling growth and resistance. Burton, R.L. Washington, D.C. : The Service; 1986. Reprints - U.S. Department of Agriculture, Agricultural Research Service [197]: p. 38-39; 1986. Includes references. Language: English Descriptors: Triticum; Seedlings; Crop damage; Growth; Pest resistance; Varietal susceptibility; Hemiptera 197 NAL Call. No.: 64.8 C883 Greenbug nonpreference for bloomless sorghum. Weibel, D.E.; Starks, K.J. Madison, Wis. : Crop Science Society of America; 1986 Nov. Crop science v. 26 (6): p. 1151-1153; 1986 Nov. Includes references. Language: English Descriptors: Sorghum bicolor; Schizaphis graminum; Pest resistance; Age differences; Developmental stages; Phenotypes; Hosts of plant pests; Biological control; Insect control 198 NAL Call. No.: QL461.S65 Growth and survival of southwestern corn borer on whorl and reproductive stage plants of selected corn hybrids. Davis, F.M.; Williams, W.P.; Ng, S.S.; Videla, G.W. College Station, Tex. : Southwestern Entomological Society; 1991 Jun. The Southwestern entomologist v. 16 (2): p. 144-154; 1991 Jun. Includes references. Language: English Descriptors: Mississippi; Zea mays; Diatraea grandiosella; Larvae; Pest resistance; Hybrids 199 NAL Call. No.: 420 F662 Growth, development, and survival of fall armyworm fed panicles of isogenic sorghum lines in an artificial diet. Wiseman, B.R.; Duncan, R.R. Gainesville, Fla. : Florida Entomological Society; 1989 Sep. Florida entomologist v. 72 (3): p. 556-558; 1989 Sep. Includes references. Language: English Descriptors: Sorghum bicolor; Spodoptera frugiperda; Pest resistance; Panicles; Synthetic diets 200 NAL Call. No.: 421 J822 Hessian fly (Diptera: Cecidomyiidae) damage and forage production of winter wheat. Buntin, G.D.; Raymer, P.L. Lanham, Md. : Entomological Society of America; 1989 Feb. Journal of economic entomology v. 82 (1): p. 301-306; 1989 Feb. Includes references. Language: English Descriptors: Georgia; Triticum aestivum; Winter wheat; Cultivars; Crop yield; Crop damage; Pest resistance; Mayetiola destructor; Yield components Abstract: Effect of Hessian fly, Mayetiola destructor (Say), damage on the forage production of susceptible and resistant cultivars of soft red winter wheat, Triticum aestivum L., was investigated in three experiments. Hessian fly damage reduced total dry matter yield of forage by 14 to 46%. Damage in all experiments was greatest during the first cutting when plants were in the seedling stage. Total forage yield declined linearly with increasing percentage of infested tillers when January infestations exceeded about 10% infested tiller. Low to moderate levels of Hessian fly damage reduced forage yield primarily by a reduction in tiller size and weight rather than tiller density. Severe infestations reduced tiller size and density. Hessian fly damage did not greatly affect crude protein or acid detergent fiber content of forage. Our study documents the potential risk of severe Hessian fly damage to wheat forage production. The economic benefit of using host plant resistance to control the Hessian fly in winter wheat grown for forage averaged $105/ha in these studies. 201 NAL Call. No.: SB608.M2I57 1987 The hopper-borne diseases of maize and control by vector resistance. Bajet, N.B.; Renfro, B.L. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 156-162; 1987. Includes references. Language: English Descriptors: Zea mays; Genetic engineering; Resistance; Insect pests; Homoptera; Disease vectors; Plant viruses; Mycoplasma-like organisms; Host plants; Hosts of plant pests; Host parasite relationships; Interference 202 NAL Call. No.: SB245.B42 Host plant resistance: advances in cotton. Jenkins, J.N. Memphis : National Cotton Council; 1986. Proceedings of the...Beltwide Cotton Production Conference. p. 34-41; 1986. Paper presented at the "Beltwide Cotton Production Conference," January 4-9, 1986, Las Vegas, Nevada. Language: English Descriptors: Mississippi; Gossypium hirsutum; Breeding aims; Resistance; Insect pests; Meloidogyne incognita; Germplasm; F1 hybrids 203 NAL Call. No.: QK1.C83 Host plant resistance for insect control in some important crop plants. Gracen, V.E. Jr Boca Raton, Fla. : CRC Press; 1986. Critical reviews in plant sciences v. 4 (3): p. 277-291; 1986. Literature review. Includes references. Language: English Descriptors: Crops; Insect control; Hosts of plant pests; Resistance; Breeding aims; Genetic factors 204 NAL Call. No.: 23 AU74 Host plant resistance in cotton. Thompson, N.J. Marrickville, N.S.W. : Academic Press; 1987. Journal of the Australian Institute of Agricultural Science v. 53 (4): p. 262-270. ill; 1987. Literature review. Includes references. Language: English Descriptors: Australia; Gossypium; Breeding programs; Pest resistance; Plant breeding; Plant damage; Insect pests; Crop yield 205 NAL Call. No.: SB608.M2I57 1987 Host plant resistance to the Asiatic corn borer, Ostrinia furnacalis, in the Philippines. Lit, M.C.; Adalla, C.B.; Lantin, M.M. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 277-280; 1987. Includes references. Language: English Descriptors: Philippines; Zea mays; Breeding programs; Resistance; Ostrinia furnacalis; Breeding methods; Resistance mechanisms; Genetic resources 206 NAL Call. No.: SB476.G7 Host resistance to turf insects. Cobb, P. Overland Park, Kan. : Intertec Publishing Corporation; 1987 Feb. Grounds maintenance v. 22 (2): p. 26. ill; 1987 Feb. Language: English Descriptors: Lawns and turf; Cultivars; Insect pests; Resistance 207 NAL Call. No.: 442.8 Z8 Identification of alien chromatin specifying resistance to wheat streak mosaic and greenbug in wheat germ plasm by C-banding and in situ hybridization. Friebe, B.; Mukai, Y.; Dhaliwal, H.S.; Martin, T.J.; Gill, B.S. Berlin, W. Ger. : Springer International; 1991. Theoretical and applied genetics v. 81 (3): p. 381-389. ill; 1991. Includes references. Language: English Descriptors: Triticum aestivum; Elymus hispidus; Aegilops speltoides; Plant breeding; Addition lines; Translocation lines; C bands; Dna hybridization; Genetic resistance; Pest resistance; Wheat streak mosaic virus; Schizaphis graminum; Gene location; Chromosome translocation; Chromatin; Chromosomes Abstract: The chromosome constitutions of eight wheat streak mosaic virus (WSMV)-resistant lines, three of which are also greenbug resistant, derived from wheat/Agropyron intermedium/Aegilops speltoides crosses were analyzed by C- banding and in situ hybridization. All lines could be traced back to CI15092 in which chromosome 4A is substituted for by an Ag. intermedium chromosome designated 4Ai-2, and the derived lines carry either 4Ai-2 or a part of it. Two (CI17881, CI17886) were 4Ai-2 addition lines. C117882 and CI17885 were 4Ai-2(4D) substitution lines. CI17883 was a translocation substitution line with a pair of 6AL.4Ai-2S and a pair of 6AS.4Ai-2L chromosomes substituting for chromosome pairs 4D and 6A of wheat. CI17884 carried a 4DL.4Ai-2S translocation which substituted for chromosome 4D. CI17766 carried a 4AL.4Ai-2S translocation substituting for chromosome 4A. The results show that the 4Ai-2 chromosome is related to homoeologous group 4 and that the resistance gene(s) against WSMV is located on the short arm of 4Ai-2. In addition, CI17882, CI17884, and CI17885 contained Ae. speltoides chromosome 7S substituting for chromosome 7A of wheat. The greenbug resistance gene Gb5 was located on chromosome 7S. 208 NAL Call. No.: 421 J822 Identification of common bean lines with ovipositional resistance to Empoasca kraemeri (Homoptera: Cicadellidae). Kornegay, J.L.; Cardona, C.; Van Esch, J.; Alvarado, M. Lanham, Md. : Entomological Society of America; 1989 Apr. Journal of economic entomology v. 82 (2): p. 649-654; 1989 Apr. Includes references. Language: English Descriptors: Colombia; Phaseolus vulgaris; Breeding programs; Crop damage; Germplasm; Lines; Pest resistance; Empoasca; Nymphs; Oviposition Abstract: Field and greenhouse studies were done to identify ovipositional antixenosis (the plant property responsible for resistance) in common beans, Phaseolus vulgaris L., to the leafhopper Empoasca kraemeri Ross and Moore. The 1985 field study showed considerable variation among 49 resistant bean lines for nymphal counts, damage scores, and yield under leafhopper attack. Bean lines EMP 124,' EMP 125,' and EMP 135' had significantly fewer nymphs per leaf over the growing season than ICA Pijao,' the tolerant check variety. These results were confirmed in 1986 when nymphal emergence and adult leafhopper counts on EMP 124' and EMP 135' were compared with EMP 81,' another tolerant check. Other bean lines with low nymphal emergence, low damage scores, and high nonprotected yield also were identified. The effect of plant age on antixenosis resistance also was studied under field conditions, and EMP 124' showed high levels of resistance to leafhopper oviposition as seedlings and plants. Compared with the tolerant check, EMP 89' and EMP 135,' however, appeared to be less preferred for oviposition as plants than as seedlings. Greenhouse free choice and no choice studies were conducted on bean seedlings and plants. EMP 124' and EMP 125' showed high levels of antixenosis resistance compared with ICA Pijao,' and EMP 94' and EMP 135' were intermediate in their response. Crosses between tolerant and antixenosis bean lines are recommended as a potential means of increasing overall leafhopper resistance levels. 209 NAL Call. No.: SB599.J69 Identifying resistance in corn to corn earworm (Lepidoptera: Noctuidae) using a laboratory bioassay. Buckley, P.M.; Davis, F.M.; Williams, W.P. Clemson, S.C. : South Carolina Entomological Society; 1991 Jan. Journal of agricultural entomology v. 8 (1): p. 67-70; 1991 Jan. Includes references. Language: English Descriptors: Zea mays; Helicoverpa zea; Diatraea grandiosella; Spodoptera frugiperda; Pest resistance; Inbred lines; Laboratory tests; Bioassays 210 NAL Call. No.: 421 J822 Impact of fall armyworm (Lepidoptera: Noctuidae) host strains on the evaluation of Bermuda grass resistance. Pashley, D.P.; Quisenberry, S.S.; Jamjanya, T. Lanham, Md. : Entomological Society of America; 1987 Dec. Journal of economic entomology v. 80 (6): p. 1127-1130; 1987 Dec. Includes references. Language: English Descriptors: Louisiana; Cynodon dactylon; Varieties; Pest resistance; Spodoptera frugiperda; Larvae; Development; Survival Abstract: Development and survival of two fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith), host strains were evaluated on four varieties of Bermuda grass, Cynodon dactylon (L.) ('Costal', 'Grazer', OSU 71 X 6-7, and 'Tifton 292'). Two FAW laboratory colonies used in experiments were analyzed electrophoretically and determined to comprise the corn strain (GA colony) and the rice/Bermuda grass strain (LA colony). Comparisons between strain indicated significant developmental differences on 'Tifton 292' and, to a lesser degree, on 'Costal'. On the former, larvae from the LA colony were 3 times heavier on day 8 and developed about 3 d faster than larvae from the GA colony. Differences in survivorship were not significant. Development on the four varieties also differed within strains. The LA colony exhibited the best developmental performance on 'Tifton 292', whereas that variety was worst for development of the GA colony. Thus, a variety considered resistant when tested with the corn strain conferred no resistance to the rice strain. In nature, the rice strain predominantly feeds on Bermuda grass. The host strain of laboratory colonies used to assess host plant resistance to FAW cannot be ignored. 211 NAL Call. No.: 421 J822 Importance of plant senescence on grain sorghum resistance to the banks grass mite (Acari: Tetranychidae). Archer, T.L.; Bynum, E.D. Jr; Peterson, G.C. College Park, Md. : Entomological Society of America; 1986 Feb. Journal of economic entomology v. 79 (1): p. 15-17; 1986 Feb. Includes references. Language: English Descriptors: Texas; Sorghum bicolor; Genotypes; Senescence; Crop damage; Pest resistance; Oligonychus pratensis 212 NAL Call. No.: 421 EN895 The importance of the behaviour of young larvae in sorghum resistance to Chilo partellus. Woodhead, S.; Taneja, S.L. Dordrecht : Dr W. Junk Publishers; 1987 Sep. Entomologia experimentalis et applicata v. 45 (1): p. 47-54; 1987 Sep. Includes references. Language: English Descriptors: Sorghum; Cultivars; Pest resistance; Chilo partellus; Eggs; Larvae; Pest control; Waxes 213 NAL Call. No.: SB249.N6 Improvement in fiber quality, yield potential, and resistance to pests of MAR cottons. El-Zik, K.M.; Thaxton, P.M.; Wallace, T.P.; Cook, C.G. Memphis, Tenn. : National Cotton Council and The Cotton Foundation; 1988. Proceedings - Beltwide Cotton Production Research Conferences. p. 554-560; 1988. Conference held on January 3-8, 1988, New Orleans, Louisiana. Includes references. Language: English Descriptors: Gossypium hirsutum; Breeding programs; Fiber quality; Crop quality; Disease resistance; Pest resistance; Drought tolerance 214 NAL Call. No.: SB599.J69 Inbreeding depression and gene frequency changes for agronomic traits in corn synthetic selected for resistance to European corn borer. Klenke, J.R.; Russell, W.A.; Guthrie, W.D.; Smith, O.S. Clemson, S.C. : South Carolina Entomological Society; 1988 Oct. Journal of agricultural entomology v. 5 (4): p. 225-233; 1988 Oct. Includes references. Language: English Descriptors: Zea mays; Synthetic varieties; Agronomic characteristics; Recurrent selection; Resistance; Ostrinia nubilalis; Gene frequency; Inbreeding depression 215 NAL Call. No.: 26 L53 Incidence of termite damage in sugar cane grown in Sri Lanka. Kumarasinghe, N.C.; Ranasinghe, M.A.S.K. Leipzig, E. Ger. : Karl-Marx-Universitat; 1988. Beitrage zur tropischen Landwirtschaft und Veterinarmedizin v. 26 (3): p. 303-307; 1988. Includes references. Language: English Descriptors: Sri lanka; Saccharum officinarum; Sets; Buds; Crop damage; Odontotermes; Pest resistance; Rain; Varieties 216 NAL Call. No.: SB608.M2I57 1987 Incorporating insect resistant maize varieties into tropical cropping systems. Peairs, F.B. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 271-274; 1987. Includes references. Language: English Descriptors: Zea mays; Resistance; Insect pests; Cultivars; Incorporation; Cropping systems; Tropical Zones 217 NAL Call. No.: 420 K13 Incorporation of callus tissue into artifical diet as a means of screening corn genotypes of resistance to the fall armyworm and the corn earworm (Lepidoptera: Noctuidae). Isenhour, D.J.; Wiseman, B.R. Lawrence, Kan. : The Society; 1988 Jul. Journal of the Kansas Entomological Society v. 61 (3): p. 303-307; 1988 Jul. Includes references. Language: English Descriptors: Zea mays; Genotypes; Pest resistance; Heliothis zea; Spodoptera frugiperda; Diets; Callus; Screening 218 NAL Call. No.: 64.8 C883 Indices of plant damage and heritability of tolerance to the spotted alfalfa aphid in alfalfa. Jimenez, H.O.; Caddel, J.L.; Berberet, R.C.; McNew, R.W. Madison, Wis. : Crop Science Society of America; 1989 Nov. Crop science v. 29 (6): p. 1337-1340; 1989 Nov. Includes references. Language: English Descriptors: Oklahoma; Medicago sativa; Cultivars; Pest resistance; Therioaphis; Plant damage; Characterization; Heritability; Performance traits; Performance indexes Abstract: Alfalfa, Medicago sativa L., cultivars expressing antibiosis or antixenosis resistance to the spotted alfalfa aphid (SAA), Therioaphis maculata (Buckton), impose selection pressure for more-virulent insect biotypes. Tolerant plants could be useful in reducing pressure for rapid development of new biotypes. Our studies were conducted to quantify tolerance to the SAA by assessing damage to plants that supported infestations with less damage than was typically observed in susceptible plants and to study the inheritance of tolerance. Vegetative propagation was used to provide replicates of tolerant plants for use in estimating the extent of genetic variability in the Oklahoma common cultivar OK08. Heritability of tolerance was estimated by parent-offspring regression of selfed and polycross progeny. Numbers of SAA were similar on tolerant and susceptible plants after 10 d of infestation and by Day 19, tolerant plants had much higher numbers. A tolerance index that considers stunted growth and percentage of leaves that exhibit no chlorosis was developed based on correlation of these variables with dry-matter production. After a 19-d infestation period, variation in expression of tolerance by 39 candidate plants was high and 35% of the variability was estimated to be genetic. Heritability of the tolerance characteristics was estimated at 25% in selfed progeny of these plants and 20% in polycross progeny. Reduction in heritability of tolerance in these progeny suggests that dominant effects may control expression of this trait in alfalfa. 219 NAL Call. No.: QL461.G4 Influence and performance of soybean lines isogenic for pubescence type on oviposition preference and egg distribution by corn earworm (Lepidoptera: Noctuidae). Lambert, L.; Kilen, T.C. Tifton, Ga. : Georgia Entomological Society; 1989 Jul. Journal of entomological science v. 24 (3): p. 309-316; 1989 Jul. Includes references. Language: English Descriptors: Glycine max; Heliothis zea; Resistance to injurious factors; Oviposition; Isogenic lines; Insect control 220 NAL Call. No.: QH301.A76 The influence of cultivating new raspberry varieties on the incidence of viruses in raspberry crops in the UK. Jones, A.T. Wellesbourne, Warwick : The Association of Applied Biologists; 1988. Aspects of applied biology (17,pt.1): p. 179-186; 1988. Paper presented at the "Conference on Environmental Aspects of Applied Biology," September 19-21, 1988, University of York, England. Includes references. Language: English Descriptors: United kingdom; Rubus; Cultivars; Disease resistance; Disease vectors; Pest resistance; Plant viruses; Incidence; Amphorophora 221 NAL Call. No.: QL461.E532 Influence of host plant and insecticide resistance on greenbug (Homoptera: Aphididae) biotype variation measured by fluorescent microscopy. Mayo, Z.B.; Banks, D.J.; Starks, K.J.; Veal, R.A. College Park, Md. : Entomological Society of America; 1987 Jun. Environmental entomology v. 16 (3): p. 676-679; 1987 Jun. Includes references. Language: English Descriptors: Oklahoma; Schizaphis graminum; Biotypes; Sorghum bicolor; Cultivars; Insecticide resistance; Esterases; Enzyme activity; Insecticides; Hosts of plant pests; Fluorescence microscopy 222 NAL Call. No.: 420 K13 Influence of maize pericarp surface relief on resistance to the maize weevil (Coleoptera: Curculionidae). Tipping, P.W.; Legg, D.E.; Rodriguez, J.G.; Poneleit, C.G. Lawrence, Kan. : The Society; 1988 Apr. Journal of the Kansas Entomological Society v. 61 (2): p. 237-241. ill; 1988 Apr. Includes references. Language: English Descriptors: Zea mays; PeRicarp; Pest resistance; Inbred lines; Sitophilus zeamais 223 NAL Call. No.: SB599.J69 Influence of planting date on abundance of panicle-feeding insects associated with sorghum. Archer, T.L.; Losada, J.C. ves; Bynum, E.D. Jr Clemson, S.C. : South Carolina Entomological Society; 1990 Jul. Journal of agricultural entomology v. 7 (3): p. 233-239; 1990 Jul. Includes references. Language: English Descriptors: Texas; Sorghum bicolor; Lygus hesperus; Contarinia sorghicola; Planting date; Population dynamics; Pest resistance; Hybrids 224 NAL Call. No.: 421 J822 Influence of resistant and susceptible cultivar blends of hard red spring wheat on wheat stem sawfly (Hymenoptera: Cephidae) damage and wheat quality parameters. Weiss, M.J.; Riveland, N.R.; Reitz, L.L.; Olson, T.C. Lanham, Md. : Entomological Society of America; 1990 Feb. Journal of economic entomology v. 83 (1): p. 255-259; 1990 Feb. Includes references. Language: English Descriptors: Montana; Triticum aestivum; Spring wheat; Cultivars; Crop damage; Cephus cinctus; Larvae; Milling and baking quality Abstract: Use of resistant and susceptible cultivar blends of hard red spring wheat (Triticum aestivum L.) were investigated over a 3- yr period as a method to suppress wheat stem sawfly, Cephus cinctus Norton, damage. Blends provided inconsistent protection against stem cutting. Differences in estimated harvestable yield were only detected in 1 year. Total yield and milling and baking qualities of blends were not significantly different from those of monocultures. Blends may be useful in situations where the potential for damage by wheat stem sawfly is low to moderate. 225 NAL Call. No.: S539.5.A77 Influence of spacings and fertilizer levels on the incidence of bollworm-boll rot complex in three varieties of cotton (Gossypium hirsutum). Ilango, K.; Uthamasamy, S. New York, N.Y. : Springer; 1989. Applied agricultural research v. 4 (3): p. 173-178; 1989. Includes references. Language: English Descriptors: Tamil nadu; Gossypium hirsutum; Varieties; Pectinophora gossypiella; Heliothis armigera; Earias vittella; Earias insulana; Boll; Infectivity; Npk fertilizers; Plant density; Insect control; Disease resistance; Decay fungi; Spacing; Population dynamics Abstract: Three varieties of cotton (G. hirsutum) were evaluated for their reaction to the bollworm-boll rot complex in two spacings and three fertilizer levels. A spacing of 75 X 30 cm attracted more of all the three species of bollworms and boll rot compared to 90 X 30 cm spacing. Similarly, an increase in nitrogen levels led to increased infestation of bollworms and consequently increased levels of boll rot. Bollworm-boll rot complex was more in 80-40-40 and 120-40-40 NPK/ha compared to 40-40-40 NPK/ha. 226 NAL Call. No.: 420 K13 Influence of susceptible and resistant maize accessions on the development of Sitophilus zeamais Motsch. (Coleoptera, Curculionidae) with initial feeding in specific kernel areas. Urrelo, R.; Wright, V.F. Lawrence, Kan. : The Society; 1989 Jan. Journal of the Kansas Entomological Society v. 62 (1): p. 32-43. ill; 1989 Jan. Includes references. Language: English Descriptors: Zea mays; Susceptibility; Pest resistance; Kernels; Sitophilus zeamais; Development; Feeding 227 NAL Call. No.: 420 F662 Influence of three soybean genotypes on development of Voria ruralis (Diptera: Tachinidae) and on foliage consumption by its host, the soybean looper (Lepidoptera: Noctuidae). Grant, J.F.; Shepard, M. Gainesville, Fla. : Florida Entomological Society; 1985 Dec. Florida entomologist v. 68 (4): p. 672-677; 1985 Dec. Includes references. Language: English Descriptors: Glycine max; Genotypes; Pseudoplusia includens; Pest resistance; Parasites of insect pests; Voria ruralis; Foliage; Consumption; Development; Integrated pest management; Host parasite relationships 228 NAL Call. No.: 421 J822 Influence of variety on abundance and within-plant distribution of onion thrips (Thysanoptera: Thripidae) on cabbage. Stoner, K.A.; Shelton, A.M. College Park, Md. : Entomological Society of America; 1988 Aug. Journal of economic entomology v. 81 (4): p. 1190-1195; 1988 Aug. Includes references. Language: English Descriptors: New York; Brassica oleracea var. capitata; Varieties; Crop damage; Pest resistance; Thrips tabaci 229 NAL Call. No.: SB123.S63 Inheritance of corn leaf aphid resistance in hull-less barley. Ram, M. Taipei : Society for the Advancement of Breeding Researches in Asia and Oceania; 1983 Jun. SABRAO journal v. 15 (1): p. 1-5; 1983 Jun. Includes 7 references. Language: English Descriptors: Hordeum vulgare; Food grains; Characteristics; Inheritance; Alleles; Pest resistance; Rhopalosiphum maidis; Recessive genes; Breeding aims; Breeding programs 230 NAL Call. No.: 64.8 C883 Inheritance of pubescence in selected clones from two alfalfa populations and relationship to potato leafhopper resistance. Elden, T.C.; Elgin, J.H. Jr; Soper, J.F. Madison, Wis. : Crop Science Society of America; 1986 Nov. Crop science v. 26 (6): p. 1143-1146; 1986 Nov. Includes references. Language: English Descriptors: Medicago sativa; Clones; Empoasca fabae; Trichomes; Pest resistance; Heritability; Combining ability; Plant breeding 231 NAL Call. No.: 421 J822 Inheritance of resistance in two Triticum aestivum lines to Russian wheat aphid (Homoptera: Aphididae). Du Toit, F. Lanham, Md. : Entomological Society of America; 1989 Aug. Journal of economic entomology v. 82 (4): p. 1251-1253; 1989 Aug. Includes references. Language: English Descriptors: South Africa; Triticum aestivum; Cultivars; Genotypes; Inbred lines; Inheritance; Pest resistance; Hemiptera; Insect control Abstract: Studies were done to determine the inheritance of resistance in two wheat (Triticum aestivum L.) lines, PI 137739 and PI 262660, that were previously identified as resistant to Russian wheat aphid, Diuraphis noxia (Mordvilko), and to establish whether resistance was governed by the same or different genes. The resistant lines were crossed with the cultivars Tugela' and Betta.' Resistance reactions of backcross, F2, and F3 seedlings in greenhouse tests indicated that resistance in each line is controlled by a single dominant gene and that these genes are independently inherited. The gene symbols Dn 1 and Dn 2 are recommended for the resistance genes in PI 137739 and PI 262660, respectively. 232 NAL Call. No.: QL461.I57 Inheritance of resistance to midge, Contarinia sorghicola Coq. in sorghum, Sorghum bicolor (L.) Moench. Agrawal, B.L.; Abraham, C.V.; House, L.R. Oxford : Pergamon Press; 1988. Insect science and its application v. 9 (1): p. 43-45; 1988. Includes references. Language: English Descriptors: Karnataka; Sorghum bicolor; Cultivars; Insect pests; Contarinia sorghicola; Insect control; Plant breeding; Resistance to parasites; Inheritance of acquired characters; Genetic variance; Crossbreds; Combining ability 233 NAL Call. No.: 450 EU6 Inheritance of tolerance to barley yellow dwarf virus in oats. Mckenzie, R.I.H.; Burnett, P.A.; Gill, C.C.; Comeau, A.; Brown, P.D. Wageningen : Netherlands Study Circle of Plant Breeding; 1985 Nov. Euphytica v. 34 (3): p. 681-687; 1985 Nov. Includes references. Language: English Descriptors: Avena sativa; Barley yellow dwarf virus; Rhopalosiphum padi; Disease vectors; Disease resistance; Inheritance of acquired characters; Biological control 234 NAL Call. No.: 4 AM392 Insect and mite pests of wheat. Hatchett, J.H.; Starks, K.J.; Webster, J.A. Madison, Wis. : American Society of Agronomy; 1987. Agronomy (13): p. 625-675; 1987. Includes references. Language: English Descriptors: Triticum aestivum; Insect pests; Yield losses; Leaves; Stems; Spikes; Pest control; Resistance 235 NAL Call. No.: TA166.T72 Insect control with genetically engineered crops. Brunke, K.J.; Meeusen, R.L. Cambridge : Elsevier Publications; 1991 Jun. Trends in biotechnology v. 9 (6): p. 197-200; 1991 Jun. Includes references. Language: English Descriptors: Insect control; Plant breeding; Genetic engineering; Resistance; Insect pests; Bacteria; Gene transfer; Genetic control; Proteins; Insecticidal properties; Biological control agents Abstract: The ability to move bacterial genes encoding 'natural' insecticidal proteins into plants is permitting the development of crops intrinsically resistant to insect attack, with advantages over conventional insect-control agents (i.e. externally applied synthetic chemicals). These advantages include absence of residues in soil or groundwater, lack of toxicity to non-target organisms, and protection of plant parts which are difficult or impossible to spray (e.g. roots). Continued elucidation of the mechanisms by which such agents act, coupled with genetic engineering techniques, should lead to an increasing variety of insect-resistant crops in the coming years. Agriculture will thus gain inexpensive, effective and environmentally safe alternatives to current insect-control methods. 236 NAL Call. No.: aS21.A8U5/ARS Insect fauna in stems of native sunflower in southeastern North Dakota. Charlet, L.D.; Brewer, G.J.; Beregovoy, V. Washington, D.C. : The Service; 1989. Reprints - U.S. Department of Agriculture, Agricultural Research Service [356]: p. 38-41; 1989. Language: English Descriptors: North Dakota; Helianthus; Alternative hosts; Germplasm; Pest resistance; Insect pests; Incidence; Larvae; Nealiolus curculionis; Parasites of insect pests; Stems 237 NAL Call. No.: 421 P69 Insect pest management in sorghum. Sukhani, T.R. Faridabad : The Directorate of Plant Protection, Quarantine & Storage; 1986. Plant protection bulletin v. 38 (1/4): p. 57-62; 1986. Includes references. Language: English Descriptors: India; Sorghum; Hybrids; Varieties; Pest resistance; Insect pests; Biological control; Chemical control; Cultural control; Insecticides; Integrated pest management 238 NAL Call. No.: SB191.P4I57 1986 Insect pests of pearl millet in West Africa and their control. NDoye, M.; Gahukar, R. Patancheru, Andhra Pradesh, India : Int Crops Res Inst for the Semi-Arid Tropics; 1987. Proceedings of the International Pearl Millet Workshop : 7-11 April 1986, ICRISAT Center, India / sponsored by USAID Title XII (INTSORMIL) and (ICRISAT). p. 195-205. ill., maps; 1987. Includes references. Language: English Descriptors: West Africa; Pennisetum americanum; Insect pests; Cultural control; Biological control; Chemical control; Pest resistance; Varieties; Insect control; Insecticides 239 NAL Call. No.: 100 L936 Insect resistant cotton. Jones, J.E.; Dickson, J.I.; Novick, R.G.; Graves, J.B.; Leonard, B.R.; Burris, E. Baton Rouge, La. : The Department; 1989. Report of projects - Louisiana Agricultural Experiment Station, Department of Agronomy. p. 8-21; 1989. Includes statistical data. Language: English Descriptors: Gossypium; Strains; Resistance; Insect pests 240 NAL Call. No.: 100 M69MI Insect resistant cotton to be field tested. Remy, K. Mississippi State, Miss. : The Station; 1989 May. MAFES research highlights - Mississippi Agricultural and Forestry Experiment Station v. 52 (5): p. 2. ill; 1989 May. Language: English Descriptors: Mississippi; Gossypium hirsutum; Genetic engineering; Insecticidal plants; Field tests 241 NAL Call. No.: S51.E22 Insect screening results: evaluation of corn hybrids for resistance to insects. Widstrom, N.W.; McMillian, W.W.; Wiseman, B.R. Athens, Ga. : The Stations; 1989 Nov. Research report - University of Georgia, College of Agriculture, Agricultural Experiment Stations (585): p. 26-29; 1989 Nov. Language: English Descriptors: Georgia; Zea mays; Hybrids; Screening tests; Resistance; Insect pests 242 NAL Call. No.: 421 J822 Insecticide toxicity to the soybean looper and the velvetbean caterpillar (Lepidoptera: Noctuidae) as influenced by feeding on resistant soybean (PI 227687) leaves and coumestrol. Rose, R.L.; Sparks, T.C.; Smith, C.M. College Park, Md. : Entomological Society of America; 1988 Oct. Journal of economic entomology v. 81 (5): p. 1288-1294; 1988 Oct. Includes references. Language: English Descriptors: Louisiana; Glycine max; Varieties; Pest resistance; Anticarsia gemmatalis; Pseudoplusia includens; Coumestrol; Insecticides; Toxicity Abstract: Permethrin, fenvalerate, acephate, methyl parathion, and methomyl were tested on larvae of the velvetbean caterpillar, Anticarsia gemmatalis (Hubner), and the soybean looper, Pseudoplasia includens (Walker), fed on a susceptible ('Bragg') or a resistant (PI 227687) soybean cultivar. At LD50, susceptibility of A. gemmatalis larvae to fenvalerate and acephate was significantly enhanced by feeding on the resistant cultivar (1.5 and 1.6 times, respectively). P. includens reared on resistant leaves were also significantly more susceptible to acephate (2 times) than when they were reared on susceptible leaves. The toxicity of the other insecticides examined for each insect was not affected. Incorporation of coumestrol, an isoflavonoid associated with PI 227687 resistance, into a modified artificial diet resulted in significant reductions in weight gain for P. includens larvae. Feeding on a diet amended with coumestrol significantly enhanced the toxicity of fenvalerate (1.5 times) while reducing toxicity of methomyl (2 times) to larvae of P. includens. 243 NAL Call. No.: 100 L936 Insect-resistant cottons. Jones, J.E.; Dickson, J.I.; Graves, J.B.; Pavloff, A.M.; Leonard, B.R.; Burris, E.; Caldwell, W.D.; Micinski, S.; Moore, S.H.; Aguillard, W. Baton Rouge, La. : The Department; 1988. Report of projects - Louisiana Agricultural Experiment Station, Department of Agronomy. p. 3-11; 1988. Language: English Descriptors: Louisiana; Gossypium; Cultivars; Pest resistance; Anthonomus grandis; Heliothis; Cotton; Fiber quality; Yield components 244 NAL Call. No.: SB203.P28 Insects that reduce persistence and productivity of forage legumes in the USA. Berberet, R.C.; Dowdy, A.K. Madison, Wis. : American Society of Agronomy; 1989. Persistence of forage legumes : proceedings of a trilateral workshop held in Honolulu, Hawaii, 18-22 July 1988 / editors, G.C. Marten ... [et al.].. p. 481-500; 1989. Literature review. Includes references. Language: English Descriptors: U.S.A.; Forage legumes; Sown pastures; Insect pests; Crop damage; Yield losses; Chemical control; Breeding aims; Resistance 245 NAL Call. No.: 421 B87 Intensive free-choice and no-choice cohort tests for evaluating resistance to Maruca testulalis (Lepidoptera: Pyralidae) in cowpea. Echendu, T.N.C.; Akingbohungbe, A.E. London : Commonwealth Agricultural Bureaux International; 1990 Sep. Bulletin of entomological research v. 80 (3): p. 289-293; 1990 Sep. Includes references. Language: English Descriptors: Nigeria; Vigna unguiculata; Pest resistance; Crop damage; Maruca testulalis; Longevity; Sex ratio; Size; Yield losses 246 NAL Call. No.: 22.5 AG823 Interactions between biotypes of the brown planthopper and rice varieties. Cheng, C.H. Taiwan, China : The Taiwan Agricultural Research Institute; 1985 Sep. Chung-hua nung yeh yen chiu; Journal of agricultural research of China v. 34 (3): p. 299-314; 1985 Sep. Includes references. Language: English Descriptors: Taiwan; Oryza sativa; Varieties; Pest resistance; Nilaparvata lugens; Biotypes; Crop damage; Population dynamics; Survival 247 NAL Call. No.: 421 B87 Introduction and spread of the cassava green mite, Mononychellus tanajoa (Bondar) (Acari: Tetranychidae), an exotic pest in Africa and the search for appropriate control methods: a review. Yaninek, J.S.; Herren, H.R. London : Commonwealth Agricultural Bureaux International; 1988 Mar. Bulletin of entomological research v. 78 (1): p. 1-13. maps; 1988 Mar. Literature review. Includes references. Language: English Descriptors: Africa; Manihot esculenta; Cultivars; Pest resistance; Mononychellus tanajoa; Biological control; Biology; Crop damage; Insect control; Spread; Taxonomy 248 NAL Call. No.: QL483.I4J6 'Introduction nursery' contributes resistant maize germplasms to shoot fly complex (Atherigona soccata Rondani and Atherigona naqvii Steyskal) in spring sown maize. Panwar, V.P.S.; Sarup, P. New Delhi : Malhotra Publishing House; 1986 Dec. Journal of entomological research v. 10 (2): p. 144-146; 1986 Dec. Includes references. Language: English Descriptors: India; Zea mays; Resistance to parasites; Germplasm; Atherigona soccata; Atherigona naqvii 249 NAL Call. No.: 442.8 Z8 Introgression of genes from Oryza officinalis well ex watt to cultivated rice, O. sativa, L. Jena, K.K.; Khush, G.S. Berlin, W. Ger. : Springer International; 1990. Theoretical and applied genetics v. 80 (6): p. 737-745. ill; 1990. Includes references. Language: English Descriptors: Thailand; Malaysia; India; Philippines; Oryza sativa; Oryza; Introgression; Backcrossing; Plant breeding; Addition lines; Genomes; Recombination; Segregation; Genes; Phenotypes; Pest resistance; Planthoppers; Plant morphology; Fertility; Crop yield; Gene location 250 NAL Call. No.: SB91.N48 Kairomones--chemical signals related to plant resistance against insect attack. Rembold, H. London : Chapman and Hall; 1989. New crops for food and industry / edited by G.E. Wickens, N. Haq, P. Day. p. 352-364; 1989. Paper presented at the "International Symposium on New Crops for Food and Industry". Includes references. Language: English Descriptors: Plant pests; Insects; Integrated pest management; Pest resistance 251 NAL Call. No.: 421 J822 Laboratory bioassay for resistance in corn to fall armyworm (Lepidoptera: Noctuidae) and southwestern corn borer (Lepidoptera: Pyralidae). Williams, W.P.; Buckley, P.M.; Hedin, P.A.; Davis, F.M. Lanham, Md. : Entomological Society of America; 1990 Aug. Journal of economic entomology v. 83 (4): p. 1578-1581; 1990 Aug. Includes references. Language: English Descriptors: Mississippi; Zea mays; Inbred lines; Pest resistance; Spodoptera frugiperda; Diatraea grandiosella; Larvae; Weight losses Abstract: Inbred lines of corn, Zea mays L., were evaluated for resistance to leaf feeding by the fall armyworm, Spodoptera frugiperda (J. E. Smith), and southwestern corn borer, Diatraea grandiosella Dyar, in field and laboratory experiments. For the laboratory bioassays, diets were prepared from lyophilized whorl tissue of field grown plants of resistant and susceptible corn inbred lines. To prepare the diets, 11 g lyophilized tissue was stirred into a mixture of 250 ml distilled water, 2 g agar, 12.5 mg gentamicin sulfate, 132 mg sorbic, and 528 mg ascorbic acid that had been heated to 82 degrees C and poured into 30-ml plastic cups. Cups were infested with two neonate larvae each. Fall armyworm larvae reared for 10 d on diets containing tissue of resistant inbred lines weighed 60% less than those reared on diets containing susceptible inbred tissue. Southwestern corn borer larvae reared for 14 d on whorl tissue from resistant inbred lines weighed 50% less than those reared on susceptible tissue. The laboratory bioassay satisfactorily differentiated among resistant and susceptible corn inbreds. 252 NAL Call. No.: 421 J822 Laboratory method for screening corn for European corn borer (Lepidoptera: Pyralidae) resistance. Wilson, R.L.; Wissink, K.M. College Park, Md. : Entomological Society of America; 1986 Feb. Journal of economic entomology v. 79 (1): p. 274-276; 1986 Feb. Includes references. Language: English Descriptors: Zea mays; Varieties; Pest resistance; Ostrinia nubilalis; Screening tests; Laboratory techniques 253 NAL Call. No.: 64.8 C883 A laboratory technique to evaluate boll weevil oviposition preference among cotton lines. Buford, W.T.; Jenkins, J.N.; Maxwell, F.G. Madison, Wis. : Crop Science Society of America; 1967 Nov. Crop science v. 7 (6): p. 579-581; 1967 Nov. Includes references. Language: English Descriptors: Gossypium hirsutum; Line differences; Oviposition; Anthonomus grandis; Laboratory methods; Pest resistance 254 NAL Call. No.: S79.E37 Lamar, a new soybean variety resistant to leaf-feeding insects. Hartwig, E.E.; Lambert, L.; Kilen, T.C. Mississippi State, Miss. : The Station; 1989 Mar. Research report - Mississippi Agricultural and Forestry Experiment Station v. 14 (5): 2 p. ill; 1989 Mar. Language: English Descriptors: Mississippi; Glycine max; Leaves; Pest resistance; Insect control 255 NAL Call. No.: 64.8 C883 Larval antibiosis screening technique for Mexican bean beetle resistance in soybean. Rufener, G.K. II; Hammond, R.B.; Cooper, R.L.; St Martin, S.K. Madison, Wis. : Crop Science Society of America; 1987 May. Crop science v. 27 (3): p. 598-600; 1987 May. Includes references. Language: English Descriptors: Glycine max; Lines; Epilachna varivestis; Pest resistance; Screening; Plant breeding 256 NAL Call. No.: 75.8 P842 Larval development rate and mortality of Colorado potato beetle on detached leaves of wild Solanum species. Sanford, L.L.; Cantelo, W.W. Orono, Me. : Potato Association of America; 1989 Sep. American potato journal v. 66 (9): p. 575-582; 1989 Sep. Includes references. Language: English Descriptors: Maryland; Solanum; Species; Cultivars; Crop damage; Pest resistance; Leptinotarsa decemlineata; Larvae; Mortality; Development 257 NAL Call. No.: 421 J822 Larval growth and behavior of the fall armyworm (Lepidoptera: Noctuidae) on callus initiated from susceptible and resistant corn hybrids. Williams, W.P.; Buckley, P.M.; Davis, F.M. College Park, Md. : Entomological Society of America; 1985 Aug. Journal of economic entomology v. 78 (4): p. 951-954. ill; 1985 Aug. Includes references. Language: English Descriptors: Zea mays; Pest resistance; Hybrids; Callus; Spodoptera frugiperda 258 NAL Call. No.: SB599.C8 Leaf-feeding resistance to six Australian noctuids in soybean. Brier, H.B.; Rogers, D.J. Guildford : Butterworths; 1991 Aug. Crop protection v. 10 (4): p. 320-324; 1991 Aug. Includes references. Language: English Descriptors: Queensland; Glycine max; Lines; Genotypes; Plant introduction; Crosses; Pest resistance; Genetic control; Line differences; Insect control; Helicoverpa armigera; Helicoverpa punctigera; Chrysodeixis; Diachrysia; Noctuidae; Antibiosis; Larvae; Mortality; Growth rate; Weight; Maturation period 259 NAL Call. No.: QL483.I4J6 Location of sources for resistance in early maturing maize germplasms to the stalk borer, Chilo partellus (Swinhoe) under artificial infestation. Panwar, V.P.S. New Delhi : Malhotra Publishing House; 1986 Dec. Journal of entomological research v. 10 (2): p. 203-204; 1986 Dec. Includes references. Language: English Descriptors: India; Zea mays; Chilo partellus; Pest resistance 260 NAL Call. No.: 64.8 C883 Location of the benzoxazinless (bx) locus in maize by monosomic and B-A translocational analyses. Simcox, K.D.; Weber, D.F. Madison, Wis. : Crop Science Society of America; 1985 Sep. Crop science v. 25 (5): p. 827-830; 1985 Sep. Includes references. Language: English Descriptors: Zea mays; Loci; Monosomics; Chromosome translocation; Pest resistance 261 NAL Call. No.: SB249.N6 Lower insecticide use associated with a pink-bollworm resistant cotton. Wilson, F.D.; Flint, H.M. Memphis, Tenn. : National Cotton Council and The Cotton Foundation; 1988. Proceedings - Beltwide Cotton Production Research Conferences. p. 560-561; 1988. Conference held on January 3-8, 1988, New Orleans, Louisiana. Includes abstract. Language: English Descriptors: Gossypium hirsutum; Lines; Resistance; Pectinophora gossypiella; Insecticide application 262 NAL Call. No.: SB608.M2I57 1987 A maize breeding program for development of hybrids with resistance to multiple species of leaf-feeding and stalk-boring lepidoptera. Overman, J.L. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 235-243; 1987. Includes references. Language: English Descriptors: Tennessee; Zea mays; Breeding programs; Hybrids; Selection criteria; Resistance; Ostrinia nubilalis; Diatraea grandiosella; Spodoptera frugiperda; Inbred lines 263 NAL Call. No.: SB608.M2I57 1987 Maize insect pest problems, present status and future of host plant resistance in India. Sharma, V.K. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 281-285; 1987. Includes references. Language: English Descriptors: India; Zea mays; Insect pests; Insect control; Control methods; Breeding programs; Resistance; Breeding methods; Resistance mechanisms; Inheritance 264 NAL Call. No.: SB608.M2I57 1987 Maize insect pests in Zimbabwe. Sithole, S.Z. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 286-288; 1987. Includes references. Language: English Descriptors: Zimbabwe; Zea mays; Insect pests; Insect control; Control methods; Breeding programs; Selection criteria; Resistance; Screening 265 NAL Call. No.: SB608.M2I57 1987 Maize pest problems in Cameroon: the present and future role of host plant resistance. Cletus, A.T. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 289-290; 1987. Language: English Descriptors: Cameroon; Zea mays; Insect pests; Resistance; Cultivars 266 NAL Call. No.: SB608.M2I57 1987 Maize pest problems in India and future scope of host plant resistance. Mathur, L.M.L. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 291-294; 1987. Includes references. Language: English Descriptors: India; Zea mays; Insect pests; Crop damage; Plant breeding; Selection criteria; Resistance; Breeding methods 267 NAL Call. No.: SB191.M2A34 Maize plant resistance to insect damage and associated aflatoxin development. McMillian, W.W. Mexico, D.F. : CIMMYT; 1986. Aflatoxin in maize : proceedings of the workshop, El Batan, Mexico, April 7-11, 1986 / sponspored by CIMMYT, UNDP and USAID. p. 250-253; 1986. Includes references. Language: English Descriptors: Georgia; Zea mays; Germplasm; Hybrids; Plant damage; Heliothis zea; Insect pests; Aflatoxins; Aspergillus flavus; Disease vectors 268 NAL Call. No.: SB599.A6 Maize resistance to Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae): behaviour of newly hatched larvae and movement from oviposition sites to feeding sites. Ampofo, J.K.O.; Nyangiri, E.O. Tokyo : Japanese Society of Applied Entomology and Zoology; 1986 May. Applied entomology and zoology v. 21 (2): p. 269-276; 1986 May. Includes references. Language: English Descriptors: Zea mays; Inbred lines; Resistance; Insect pests; Chilo partellus; Neonates; Larvae; Behavior; Movements; Oviposition; Sites; Feeding 269 NAL Call. No.: SB191.M2E27 1985 Maize resistance to stalk borers [Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae)]: some aspects of insect responses to the plant and implications for breeders. Ampofo, J.K.O.; Saxena, K.N. Mexico, D.F., Mexico : Centro Internacional de Mejoramiento de Maiz y Trigo; 1986. To feed ourselves : proceedings of the First Eastern, Central Southern Africa Regional Maize Workshop, Lusaka, Zambia, March 10-17, 1985, sponsored by the Government of Zambia and CIMMYT. p. 251-258; 1986. Includes references. Language: English Descriptors: Kenya; Zea mays; Resistance to injurious factors; Insect pests; Chilo partellus; Breeding programs; Oviposition; Crop damage 270 NAL Call. No.: QL461.E532 Maize stalk borer (Lepidoptera: Pyralidae) damage and plant resistance. Ampofo, J.K.O. College Park, Md. : Entomological Society of America; 1986 Dec. Environmental entomology v. 15 (6): p. 1124-1129; 1986 Dec. Includes references. Language: English Descriptors: Kenya; Zea mays; Cultivars; Chilo partellus; Eldana saccharina; Plant damage; Pest resistance; Yield losses 271 NAL Call. No.: SB351.P3P432 Management of arthropods on peanuts in Southeast Asia. Campbell, W.V. Experiment, Ga. : University of Georgia, Georgia Experiment Station; 1986. Annual report of the Peanut Collaborative Research Support Program (CRSP). p. 235-258; 1986. Language: English Descriptors: North Carolina; Thailand; Philippines; Arachis hypogaea; Insect pests; Control methods; Cultivation; Insecticide application; Breeding aims; Resistance 272 NAL Call. No.: SB608.M2I57 1987 Management of maize insects with resistant cultivars in the southern region of the United States. Rogers, C.E. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 257-266; 1987. Includes references. Language: English Descriptors: Southern states of U.S.A.; Zea mays; Cultivars; Resistance; Insect pests; Pest management; Plant breeding; Resistance mechanisms; Antibiosis; Biotechnology; Techniques 273 NAL Call. No.: S79.E37 Marketable yields of insect-resistant sweet potato cultivars. Thompson, P.G.; Hurley, R.M. Mississippi State, Miss. : The Station; 1989 Jan. Research report - Mississippi Agricultural and Forestry Experiment Station v. 14 (1): 4 p.; 1989 Jan. Includes references. Language: English Descriptors: Mississippi; Ipomoea batatas; Variety trials; Cultivars; Insect control; Crop yield; Pest resistance 274 NAL Call. No.: SB608.M2I57 1987 Mass rearing of the maize stem borers Sesamia calamistis and Eldana saccharina at IITA. Bosque-Perez, N.A.; Dabrowski, Z.T. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 22-26. ill; 1987. Includes references. Language: English Descriptors: Nigeria; Zea mays; Breeding programs; Resistance; Insect pests; Sesamia calamistis; Eldana saccharina; Mass rearing; Techniques 275 NAL Call. No.: SB608.M2I57 1987 Mass rearing stem borers, fall armyworms, and corn earworms at CIMMYT. Mihm, J.A. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 5-21. ill; 1987. Includes references. Language: English Descriptors: Mexico; Zea mays; Breeding programs; Resistance; Insect pests; Mass rearing; Techniques; Diatraea grandiosella; Diatraea saccharalis; Spodoptera frugiperda; Helicoverpa zea 276 NAL Call. No.: 500 IN2 Mass rearing the bird cherry oat aphid, Rhopalosiphum padi (L.). Kudagamage, C.; Foster, J.E. Indianapolis, Ind. : The Academy; 1985. Proceedings of the Indiana Academy of Science v. 94: p. 304; 1985. Includes abstract. Language: English Descriptors: Rhopalosiphum padi; Rearing techniques; Temperature; Light; Disease vectors; Fecundity; Barley yellow dwarf virus; Cereals; Disease resistance; Pest resistance; Plant breeding 277 NAL Call. No.: 421 J822 Mechanisms of hybrid sunflower resistance to the sunflower midge (Diptera: Cecidomyiidae). Anderson, M.D.; Brewer, G.J. Lanham, Md. : Entomological Society of America; 1991 Jun. Journal of economic entomology v. 84 (3): p. 1060-1067; 1991 Jun. Includes references. Language: English Descriptors: Manitoba; North Carolina; Helianthus annuus; Larvae; Crop damage; Hybrids; Pest resistance; Susceptibility; Contarinia schulzi; Field tests Abstract: A study was conducted to identify mechanisms of resistance in sunflower to the sunflower midge, Contarinia schulzi Gagne. Infestation ratings, larval counts, and damage ratings were used to quantify midge resistance in seven sunflower hybrids grown at three locations. Six of the seven hybrids possessed midge resistance. Each hybrid was further categorized with respect to infestation resistance, antibiosis, and tolerance. Two bud characteristics, percent open and size, were examined for their contribution to infestation resistance. The percentage of time that buds of each hybrid were open was negatively correlated with infestation (indicating a preference for the open characteristic). Infestations were higher in buds greater than or equal to 2.5 cm in diameter. In artificial infestation trials, damage caused by first and second instars was very low due to high larval mortality. When sunflower buds were artificially infested with midge adults, moderate larval infestations occurred. Artificially infesting plants with adults confirmed the presence of antibiosis in two resistant and one susceptible hybrid. 278 NAL Call. No.: 421 J822 Mechanisms of resistance and their interactions in twelve sources of resistance to biotype E greenbug (Homoptera: Aphididae) in sorghum. Dixon, A.G.O.; Bramel-Cox, P.J.; Reese, J.C.; Harvey, T.L. Lanham, Md. : Entomological Society of America; 1990 Feb. Journal of economic entomology v. 83 (1): p. 234-240; 1990 Feb. Includes references. Language: English Descriptors: Kansas; Sorghum bicolor; Crop damage; Germplasm; Interactions; Pest resistance; Schizaphis graminum; Screening Abstract: Evaluation of mechanisms of resistance among 12 grain sorghum, Sorghum bicolor (L.) Moench, sources of resistance to the biotype E greenbug, Schizaphis graminum (Rondani), indicated that the most important mechanism within this germplasm seemed to be antibiosis (with a few exceptions). The source with the highest level of overall resistance was P1266965, which had also the highest level of antibiosis. The highest level of tolerance was found in P1229828, and the highest level of antixenosis was found in 'J242.' All mechanisms of resistance in the various plant stages were independent, and only antibiosis in the seedling stages was highly related to average damage score from the usual flat screening technique. Principal component analysis was used to develop an index to maximize variation among accessions, describe each germplasm's overall resistance, and compare the known sources of resistance with any susceptible sources or any new sources of resistance in relation to host plant interactions. 279 NAL Call. No.: 421 EN895 The mechanisms of resistance in common beans to the leafhopper Empoasca kraemeri. Kornegay, J.L.; Cardona, C.; Schoonhoven, A. van Dordrecht : Dr W. Junk Publishers; 1986 Apr. Entomologia experimentalis et applicata v. 40 (3): p. 273-279; 1986 Apr. Includes references. Language: English Descriptors: Phaseolus vulgaris; Age; Varieties; Pest resistance; Empoasca; Feed preferences; Greenhouse experimentation; Oviposition 280 NAL Call. No.: 421 EN895 Mechanisms of resistance in sorghum to head bug, Calocoris angustatus. Sharma, H.C.; Lopez, V.F. Dordrecht : Kluwer Academic Publishers; 1990 Dec. Entomologia experimentalis et applicata v. 57 (3): p. 285-294; 1990 Dec. Includes references. Language: English Descriptors: Andhra pradesh; Sorghum bicolor; Cultivars; Genotypes; Pest resistance; Calocoris angustatus; Feeding preferences; Insect control; Oviposition 281 NAL Call. No.: 421 J822 Mechanisms of resistance in Zapalote Chico' corn silks to fall armyworm (Lepidoptera: Noctuidae) larvae. Wiseman, B.R.; Widstrom, N.W. College Park, Md. : Entomological Society of America; 1986 Oct. Journal of economic entomology v. 79 (5): p. 1390-1393; 1986 Oct. Includes references. Language: English Descriptors: Zea mays; Spodoptera frugiperda; Pest resistance; Genotypes; Larvae; Feeding behavior; Feed preferences; Silk; Silk; Styles 282 NAL Call. No.: 421 EN895 Mechanisms of resistance/susceptibility of certain sorghum cultivars to the stem borer Chilo partellus: role of behaviour and development. Saxena, K.N. Dordrecht : Kluwer Academic Publishers; 1990 Apr. Entomologia experimentalis et applicata v. 55 (1): p. 91-99; 1990 Apr. Includes references. Language: English Descriptors: Kenya; Sorghum bicolor; Cultivars; Pest resistance; Chilo partellus; Behavior; Development; Feeding; Larvae; Oviposition 283 NAL Call. No.: SB608.M2I57 1987 Methodologies used for screening and determining resistance in maize to the European corn borer. Guthrie, W.D.; Barry, B.D. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 122-129. ill; 1987. Includes references. Language: English Descriptors: Zea mays; Breeding programs; Resistance; Ostrinia nubilalis; Determination; Screening; Techniques 284 NAL Call. No.: SB608.M2I57 1987 Methods for developing maize resistant to the corn leaf aphid. Dicke, F.F. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 151-155. ill; 1987. Includes references. Language: English Descriptors: Zea mays; Breeding programs; Resistance; Rhopalosiphum maidis; Disease vectors; Maize mosaic rhabdovirus; Inbred lines; Hybrids; Evaluation; Techniques 285 NAL Call. No.: SB608.M2I57 1987 Methods to detect and evaluate resistance in maize to grain insects in the field and in storage. Horber, E. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 140-150. ill; 1987. Includes references. Language: English Descriptors: Zea mays; Breeding programs; Resistance; Insect pests; Stored products pests; Grain; Detection; Evaluation; Techniques 286 NAL Call. No.: SB608.M2I57 1987 Methods used to screen maize for and to determine mechanisms of resistance to the southwestern corn borer and fall armyworm. Davis, F.M.; Williams, W.P.; Wiseman, B.R. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 101-108. ill; 1987. Includes references. Language: English Descriptors: Zea mays; Breeding programs; Resistance; Diatraea grandiosella; Spodoptera frugiperda; Resistance mechanisms; Screening; Techniques 287 NAL Call. No.: 421 J822 Mexican bean beetle (Coleoptera: Coccinellidae) development on resistant and susceptible soybean lines in the laboratory and relationship to field selection. Rufener, G.K. II; Hammond, R.B.; Cooper, R.L.; St Martin, S.K. College Park, Md. : Entomological Society of America; 1986 Oct. Journal of economic entomology v. 79 (5): p. 1354-1358; 1986 Oct. Includes references. Language: English Descriptors: Glycine max; Cultivars; Lines; Epilachna varivestis; Development; Pest resistance; Selection; Mortality; Screening 288 NAL Call. No.: SB183.P57 Midge-resistant sorghum variety ICSV 197. Andhra Pradesh, India : International Crops Research Institute for the Semi-Arid Tropics; 1987. Plant material description (11): 4 p. ill; 1987. Language: English Descriptors: Andhra pradesh; Sorghum bicolor; Varieties; Origin; Performance; Characteristics; Resistance; Insect pests; Contarinia sorghicola 289 NAL Call. No.: 421 J822 Mole cricket (Orthoptera: Gryllotalpidae) damage to Hemarthria altissima: resistance or nonpreference?. Hudson, W.G. College Park, Md. : Entomological Society of America; 1986 Aug. Journal of economic entomology v. 79 (4): p. 961-963; 1986 Aug. Includes references. Language: English Descriptors: Florida; Hemarthria altissima; Paspalum notatum; Cultivars; Orthoptera; Pest resistance; Crop damage; Feed preferences; Screening 290 NAL Call. No.: SB599.P53 Morphological basis of resistance in cotton to the whitefly Bemisia tabaci. Butter, N.S.; Vir, B.K. Rehovot : Priel Publishers; 1989. Phytoparasitica : Israel journal of plant protection sciences v. 17 (4): p. 251-261; 1989. Includes references. Language: English Descriptors: Indian punjab; Gossypium hirsutum; Genotypes; Isogenic lines; Pest resistance; Bemisia tabaci; Plant morphology; Leaf area; Thickness; Leaf hairs; Density; Length; Gossypol; Glands (plant); Host parasite relationships; Varietal susceptibility; Screening tests 291 NAL Call. No.: 421 J822 A moth production index for evaluating sugarcane cultivars for resistance to the sugarcane borer (Lepidoptera: Pyralidae). Bessin, R.T.; Reagan, T.E.; Martin, F.A. Lanham, Md. : Entomological Society of America; 1990 Feb. Journal of economic entomology v. 83 (1): p. 221-225; 1990 Feb. Includes references. Language: English Descriptors: Louisiana; Saccharum officinarum; Cultivars; Crop damage; Pest resistance; Diatraea saccharalis; Survival Abstract: A 3-yr study done to evaluate sugarcane, Saccharum officinarum L., cultivars for resistance to sugarcane borer, Diatraea saccharalis (F.), indicated the need to examine the effect of cultivars on areawide pest populations in addition to the resistance to plant injury from pest attack. Evaluation of the percentage of bored internodes has traditionally served as the primary criterion to quantify sugarcane resistance to sugarcane borers. However, this index measures the cultivar resistance only until penetration by young larvae into the stalk. Using the emergence holes of the sugarcane borer as the seasonal record of adult emergence, a relative survival index was developed to estimate the proportion of larvae inside the stalk that survived to adulthood. A low correlation (r = 0.253) was found between the percentage of bored internodes and the relative survival of the older larvae. Resistance ratings based on the percentage of bored internodes were found to be inadequate estimators of moth production because differences in borer survival after entry into the stalk influence the resultant adult moth emergence. Moth production on a cultivar serves as a measure of areawide suppression or enhancement of borer populations. Data from this study indicated that evaluations of varietal resistance to the sugarcane borer should be based on resistance to damage and the potential effect on areawide populations. 292 NAL Call. No.: 421 J822 Nature of damage and sources of resistance to sweetpotato vine borer (Lepidoptera: Pyralidae) in sweet potato. Talekar, N.S.; Cheng, K.W. College Park, Md. : Entomological Society of America; 1987 Aug. Journal of economic entomology v. 80 (4): p. 788-791; 1987 Aug. Includes references. Language: English Descriptors: Taiwan; Ipomoea batatas; Lepidoptera; Germplasm; Screening; Crop damage; Pest resistance; Yield losses 293 NAL Call. No.: S601.A34 Neonate larval survival of European corn borers, Ostrinia nubilalis, on high and low DIMBOA genotypes of maize: effects of light intensity and degree of insect inbreeding. Manuwoto, S.; Scriber, J.M. Amsterdam : Elsevier; 1985 Dec. Agriculture ecosystems & environment v. 14 (3/4): p. 221-236; 1985 Dec. Includes references. Language: English Descriptors: Zea mays; Genotypes; Pest resistance; Ostrinia nubilalis; Larvae; Neonates; Survival; Dimboa; Light intensity; Inbreeding 294 NAL Call. No.: SB249.N6 New advances in developing multi-adversity resistant cottons. Bird, L.S.; El-Zik, K.M.; Thaxton, P.M.; Reyes, L.; Benedict, J.H.; Creelman, R.A.; Heald, C.M. Memphis, Tenn. : National Cotton Council and The Cotton Foundation; 1986. Proceedings - Beltwide Cotton Production Research Conferences. p. 495-499; 1986. Paper presented at the "Beltwide Cotton Production Research Conferences," January 4-9, 1986, Las Vegas, Nevada. Includes 9 references. Language: English Descriptors: Gossypium; Breeding aims; Disease resistance; Insect pests; Resistance; Earliness; Yields 295 NAL Call. No.: 59.9 AM32 New approaches to the identification and development of sorghum germplasm resistant to the biotype-E greenbug. Bramel-Cox, P.J.; Dixon, A.G.O.; Reese, J.C.; Harvey, T.L. Washington, D.C. : The Conference; 1986. Report of annual Corn and Sorghum Research Conference (41): p. 1-16; 1986. Meeting held December 10-11, 1986, Chicago, Illinois. Includes references. Language: English Descriptors: Sorghum bicolor; Schizaphis graminum; Insect pests; Pest resistance; Germplasm; Breeding aims 296 NAL Call. No.: 421 J822 New grain sorghum sources of antibiosis to the chinch bug (Heteroptera: Lygaeidae). Mize, T.W.; Wilde, G. College Park, Md. : Entomological Society of America; 1986 Feb. Journal of economic entomology v. 79 (1): p. 176-180; 1986 Feb. Includes references. Language: English Descriptors: U.S.A.; Sorghum; Varieties; Pest resistance; Blissus leucopterus; Development; Mortality 297 NAL Call. No.: 421 J822 New resistant germplasm to the chinch bug (Heteroptera: Lygaeidae) in grain sorghum: contribution of tolerance and antixenosis as resistance mechanisms. Mize, T.W.; Wilde, G. College Park, Md. : Entomological Society of America; 1986 Feb. Journal of economic entomology v. 79 (1): p. 42-45; 1986 Feb. Includes references. Language: English Descriptors: Sorghum; Germplasm; Lines; Pest resistance; Blissus leucopterus; Laboratory tests 298 NAL Call. No.: SB249.N6 New sources of boll weevil resistance in primitive race stocks of gossypium hirsutum. Lukefahr, M.J.; Vieiera, R.M. Memphis, Tenn. : National Cotton Council and The Cotton Foundation; 1986. Proceedings - Beltwide Cotton Production Research Conferences. p. 493-495; 1986. Paper presented at the "Beltwide Cotton Production Research Conferences," January 4-9, 1986, Las Vegas, Nevada. Includes 7 references. Language: English Descriptors: Gossypium hirsutum; Germplasm; Resistance; Anthonomus grandis; Breeding aims 299 NAL Call. No.: QL483.I4J6 New sources of resistance to stem borer, Chilo partellus (Swinhoe) in sorghum. Kishore, P. New Delhi : Malhotra Publishing House; 1987 Dec. Journal of entomological research v. 11 (2): p. 155-157; 1987 Dec. Includes references. Language: English Descriptors: India; Sorghum bicolor; Chilo partellus; Resistance; Varieties; Plant breeding 300 NAL Call. No.: 100 M69MI New soybean resistant to bugs. Remy, K. Mississippi State, Miss. : The Station; 1989 Apr. MAFES research highlights - Mississippi Agricultural and Forestry Experiment Station v. 52 (4): p. 7. ill; 1989 Apr. Language: English Descriptors: Mississippi; Glycine max; Cultivars; Pest resistance; Anticarsia gemmatalis; Pseudoplusia includens; Plant introduction; Crop yield; Agronomic characteristics 301 NAL Call. No.: 421 J822 No-choice cage technique to screen for resistance to sorghum midge (Diptera: Cecidomyiidae). Sharma, H.C. Lanham, Md. : Entomological Society of America; 1988 Feb. Journal of economic entomology v. 81 (1): p. 415-422. ill; 1988 Feb. Includes references. Language: English Descriptors: Andhra pradesh; Sorghum; Cultivars; Pest resistance; Screening; Contarinia sorghicola; Larvae; Plant damage Abstract: A cage technique to screen sorghum cultivars for resistance to sorghum midge, Contarinia sorghicola (Coquillett), under no-choice conditions was developed and standardized. Forty adult midges collected during morning hours (0800-1100 hours) from flowering sorghum panicles and introduced into the cage at the top- to half-anthesis stage for 2 consecutive d resulted in maximum midge damage in the susceptible cultivar 'CSH 1'. Wireframed cage covered with a blue bag caused the most damage in 'CSH 1'. This technique is useful for verification of midge resistance observed under field conditions. Resistance of 21 sorghum cultivars to sorghum midge was compared under no-choice cage and natural conditions for four seasons. Of 15 cultivars reported to be resistant to sorghum midge under natural conditions, only three ('DJ 6514', 'TAM 2566', and 'IS 12666C') showed repeatable levels of resistance under no-choice conditions during the four seasons. 'TAM 2566' and 'IS 12666C' were less attractive to the midges (less than 4 midges per five panicles) than the midge-susceptible hybrid sorghum 'CSH 1' (19 midges per five panicles) under field conditions. Fourteen cultivars that were either less attractive to adult midges or had less than or equal to 12% florets with midge larvae under natural conditions showed a susceptible reaction under no-choice testing in the cage. Cultivar reactions to midge were stable under the cage over four seasons (except 'IS 2328'). Using first two principal component cluster analysis, 'TAM 2566' and 'DJ 6514' were grouped together as the most resistant cultivars. Sources of resistance to midge thus placed in different groups can be used to increase levels of midge resistance by hybridization among cultivars belonging to different groups. 302 NAL Call. No.: 420 K13 Nonpreference resistance to European corn borer (Lepidoptera: Pyralidae) in the Mo-2 ECB maize cultivar. Barry, D.; Darrah, L.L. Lawrence, Kan. : The Society; 1988 Jan. Journal of the Kansas Entomological Society v. 61 (1): p. 72-75; 1988 Jan. Includes references. Language: English Descriptors: Missouri; Zea mays; Cultivars; Pest resistance; Genotypes; Ostrinia nubilalis 303 NAL Call. No.: SB123.57.M64 Novel insect resistance using protease inhibitor genes. Gatehouse, A.M.R.; Boulter, D.; Hilder, V.A. Molecular approaches to crop improvement / edited by E.S. Dennis and D.J. Llewellyn. p. 63-77; 1991. (Plant gene research). Includes references. Language: English Descriptors: Nicotiana tabacum; Nicotiana plumbaginifolia; Crops; Heliothis virescens; Lepidoptera; Gene transfer; Transgenics; Genetic transformation; Genetic resistance; Pest resistance; Vigna unguiculata; Proteinase inhibitors; Genes; Thuringiensin; Insecticidal properties; Agrobacterium tumefaciens 304 NAL Call. No.: 59.9 AM32 Nutritional factors related to European corn borer resistance in maize. Coors, J.G. Washington, D.C. : The Conference; 1987. Report of annual Corn and Sorghum Research Conference (42): p. 76-88; 1987. Includes references. Language: English Descriptors: Zea mays; Ostrinia nubilalis; Insect pests; Pest resistance; Plant nutrition; Infectivity; Genetic control; Cell wall components; Plant breeding; Selection; Regression analysis 305 NAL Call. No.: QL461.E532 Nymphal performance of Geocoris punctipes (Hemiptera: Lygaeidae on pest-resistant soybeans. Rogers, D.J.; Sullivan, M.J. College Park, Md. : Entomological Society of America; 1986 Oct. Environmental entomology v. 15 (5): p. 1032-1036; 1986 Oct. Includes references. Language: English Descriptors: Glycine max; Genotypes; Pest resistance; Geocoris punctipes; Predators of insect pests; Nymphs; Growth; Anticarsia gemmatalis; Pseudoplusia includens; Feeds 306 NAL Call. No.: 421 J822 Oat, wheat, and barley resistance to white grubs of Phyllophaga congrua (Coleoptera: Scarabaeidae). Crocker, R.L.; Marshall, D.; Kubica-Breier, J.S. Lanham, Md. : Entomological Society of America; 1990 Aug. Journal of economic entomology v. 83 (4): p. 1558-1562; 1990 Aug. Includes references. Language: English Descriptors: Texas; Avena sativa; Hordeum vulgare; Triticum aestivum; Mortality; Cultivars; Pest resistance; Phyllophaga Abstract: Field and greenhouse tests of selected small grain cultivars disclosed large differences in their resistance to Phyllophaga congrua (LeConte) white grubs. Resistance was evidenced first in a field plot test of four cultivars each of wheat (Triticum aestivum L.), oats (Avena sativa L.), and barley (Hordeum vulgare L.) (Poaceae). P. congrua white grubs that were present at planting caused high rates of seedling mortality and reduced the yields of some varieties. The most resistant cultivars of each species ('Nora' oats, 'Adder' wheat, and 'Tambar 401' barley [1, 10, and 43% seedling mortality, respectively]) and the least resistant ones ('Florida 501' oats, 'Wysor' barley, and 'Collin' wheat [10, 65, and 68% seedling mortality, respectively]) were tested further in the greenhouse. When the six cultivars were planted intermingled in the greenhouse, 22.8 times as many 'Collin' seedlings and 19.4 times as many 'Tambar 401' seedlings were destroyed by P. congrua third instars as were seedlings of 'Florida 501'. Two no-choice feeding experiments (each greenhouse plot contained only one cultivar) confirmed the trends for resistance shown in the choice experiments. Overall rates of grub-induced seedling mortality in the three greenhouse experiments were 8.5% ('Florida 501'), 10.9% ('Nora'), 25.8% ('Adder'), 35.7% ('Wysor'), 41.4% ('Collin'), and 42.3% ('Tambar 401'). The resistance apparently is due to the nonpreference. 307 NAL Call. No.: SB599.C8 Observations on the occurrence and inheritance in wheat of resistance to the grain aphid Sitobion avenae. Lowe, H.J.B. Guildford : Butterworths; 1985 Sep. Crop protection v. 4 (3): p. 313-321; 1985 Sep. Includes references. Language: English Descriptors: Triticum aestivum; Winter wheat; Cultivars; Resistance; Sitobion avenae; Inheritance; Screening tests 308 NAL Call. No.: 421 J822 Observed population increase, nymphal weight gain, and oviposition nonpreference as indicators of Lygus hesperus Knight (Heteroptera: Miridae) resistance in glandless cotton. Leigh, T.F.; Hyer, A.H.; Benedict, J.H.; Wynholds, P.F. College Park, Md. : Entomological Society of America; 1985 Oct. Journal of economic entomology v. 78 (5): p. 1109-1113; 1985 Oct. Includes references. Language: English Descriptors: Gossypium; Cultivars; Lygus hesperus; Pest resistance; Population dynamics; Oviposition 309 NAL Call. No.: 420 K13 Oviposition performance of Sitophilus zeamais Motsch. (Coleoptera: Curculionidae) on resistant and susceptible maize accessions. Urrelo, R.; Wright, V.F. Lawrence, Kan. : The Society; 1989 Jan. Journal of the Kansas Entomological Society v. 62 (1): p. 23-31. ill; 1989 Jan. Includes references. Language: English Descriptors: Sitophilus zeamais; Oviposition; Zea mays; Susceptibility; Pest resistance 310 NAL Call. No.: 421 J822 Oviposition preference by the sugarcane borer (Lepidoptera: Pyralidae). Sosa, O. Jr Lanham, Md. : Entomological Society of America; 1990 Jun. Journal of economic entomology v. 83 (3): p. 866-868; 1990 Jun. Includes references. Language: English Descriptors: Florida; Saccharum; Sorghum bicolor; Zea mays; Oryza sativa; Diatraea saccharalis; Oviposition; Clones; Cultivars Abstract: Oviposition preference by the sugarcane borer, Diatraea saccharalis (F.), on several hosts was compared. The sugarcane borer laid significantly more eggs (78%) on four sugarcane (Saccharum spp.) clones than on corn (Zea mays L.), sorghum (Sorghum bicolor (L.) Moench), rice (Oryza sativa L.), or wax paper (22%). More eggs were laid on the leaf surfaces of glabrous sugarcane clones than on a pubescent clone. Although fewer eggs were laid on the leaf surfaces of pubescent clones, oviposition on the midribs (devoid of trichomes) was increased compared with oviposition on the midrib of glabrous clones; this result indicated also that moths avoided pubescent surfaces for oviposition. Overall, the glabrous clones received >2.5 times the number of eggs than the pubescent clone. A commercial sugarcane clone with pubescence might therefore be more resistant to the sugarcane borer than the glabrous clones that are currently grown. 311 NAL Call. No.: 421 J822 Oviposition preference of the soybean looper (Lepidoptera: Noctuidae) among four soybean genotypes differing in larval resistance. Beach, R.M.; Todd, J.W. Lanham, Md. : Entomological Society of America; 1988 Feb. Journal of economic entomology v. 81 (1): p. 344-348; 1988 Feb. Includes references. Language: English Descriptors: Georgia; Glycine max; Genotypes; Pest resistance; Pseudoplusia includens; Larvae; Oviposition Abstract: Soybean looper (SBL), Pseudoplusia includens (Walker), oviposition preference among soybean (Glycine max (L.) Merrill) genotypes 'Kirby', 'GaSoy 17', GatIR 81-296, and PI 229358 was examined in two field tests with caged plants. In both cage tests, the number of SBL eggs deposited on 81-296 plants was significantly greater than or equal to egg deposition on plants of other genotypes. Oviposition was consistently lower on 'Kirby' compared with the other genotypes. Relative oviposition preference for 'GaSoy 17' and PI 229358 varied between the two tests. SBL larvae were also reared on foliage of each genotype to determine relative larval resistance. PI 229358 and 81-296 were significantly more resistant to SBL larvae (reduced larval and pupal weights, increased development times) compared with 'GaSoy 17', while 'Kirby' was the most susceptible of the four genotypes. The relative preference of SBL moths for oviposition on the resistant genotype 81-296 compared with the susceptible genotype 'Kirby' indicates that larval resistance and adult oviposition preference in soybean are not necessarily positively correlated. 312 NAL Call. No.: QK1.N434 Ovipositional preference of spotted bollworm (Earias vitella Fab.) in some cotton genotypes. Gupta, S.; Gupta, G.P. New Delhi : Today & Tomorrow's Printers & Publishers; 1988 Apr. New botanist v. 15 (2/3): p. 129-133; 1988 Apr. Includes references. Language: English Descriptors: Gossypium hirsutum; Genotypes; Earias vittella; Insect pests; Oviposition; Pest resistance; Seeds; Chemical composition; Tannins; Gossypol 313 NAL Call. No.: 421 J822 Ovipositional response of southwestern corn borer (Lepidoptera: Pyralidae) and fall armyworm (Lepidoptera: Noctuidae) to selected maize hybrids. Ng, S.S.; Davis, F.M.; Williams, W.P. Lanham, Md. : Entomological Society of America; 1990 Aug. Journal of economic entomology v. 83 (4): p. 1575-1577; 1990 Aug. Includes references. Language: English Descriptors: Mississippi; Zea mays; Hybrids; Pest resistance; Diatraea grandiosella; Spodoptera frugiperda; Oviposition Abstract: Field cage experiments were done to determine if maize (Zea mays L.) hybrids with leaf-feeding resistance to larvae of southwestern corn borer, Diatraea grandiosella Dyar, and fall armyworm, Spodoptera frugiperda (J. E. Smith), also are less preferred for oviposition under choice conditions. Two resistant maize hybrids (Mp496 X Mp701 and Mp704 X Mp706) and two susceptible hybrids (SC229 X Tx601 and Ab24E X Va35) were tested. Southwestern corn borers laid significantly fewer eggs on the resistant than on the susceptible hybrids. Fall armyworms laid significantly fewer eggs on the resistant hybrids than on SC229 X Tx601 but not on Ab24E X Va35. Thus, females of both species exhibited preference in selection of hosts for oviposition with the resistant hybrids being less preferred. 314 NAL Call. No.: QL461.I57 Ovipositional responses of Chilo partellus (Swinhoe) to certain susceptible and resistant maize genotypes. Kumar, H.; Saxena, K.N. Oxford, Eng. : Pergamon Press; 1985. Insect science and its application v. 6 (3): p. 331-335; 1985. Includes references. Language: English Descriptors: Zea mays; Chilo partellus; Pest resistance; Susceptibility; Genotypes; Oviposition 315 NAL Call. No.: QL483.I4J6 P311--A new sorghum variety resistant to the stem borer, Chilo partellus (Swinhoe). Kishore, P. New Delhi : Malhotra Publishing House; 1987 Jun. Journal of entomological research v. 11 (1): p. 115-118. ill; 1987 Jun. Includes references. Language: English Descriptors: Sorghum bicolor; Chilo partellus; Varieties; Plant breeding; Resistance 316 NAL Call. No.: 421 J822 Pecan weevil preference for various pecan cultivars. Calcote, V.R.; Hyder, D.E. Lanham, Md. : Entomological Society of America; 1981 Apr15. Journal of economic entomology v. 74 (2): p. 223-226; 1981 Apr15. Includes references. Language: English Descriptors: Texas; Carya pecan; Cultivars; Crop damage; Curculio caryae; Oviposition; Pest resistance Abstract: The very early maturing pecan cultivar Johnson was damaged significantly less than were later maturing cultivars by Curculio caryae (Horn) in studies made in 1978 and 1979. In a different test in 1976, the cultivar 48-15-3 was the only one of 39 cultivars tested that escaped damage. Both of these cultivars mature extremely early; thus, although the possibility of discovering immunity to the pecan weevil is negligible, resistance through host evasion by asynchrony is possible. 317 NAL Call. No.: 421 J822 Performance of maize inbred line DE811 in hybrid combinations: resistance to first- and second-generation European corn borers (Lepidoptera: Pyralidae). Guthrie, W.D.; Hawk, J.A.; Jarvis, J.L. Lanham, Md. : Entomological Society of America; 1989 Dec. Journal of economic entomology v. 82 (6): p. 1804-1806; 1989 Dec. Includes references. Language: English Descriptors: Iowa; Zea mays; Genotypes; Hybrids; Inbred lines; Pest resistance; Ostrinia nubilalis Abstract: Inbred line DE811 was crossed with 12 dent maize, Zea mays L., inbred lines. The 12 inbred lines, plus DE811 and a check inbred line, and 12 single crosses, plus two single-cross checks, were planted in a modified randomized block design for 3 yr, with five replications each year. First-generation European corn borer, Ostrinia nubilalis Hubner, plots were separate from the second- generation European corn borer plots (two hills of three plants for each plot in each experiment). Plants in the first-generation tests were infested during the midwhorl stage of plant development, whereas plants in the second-generation tests were infested during anthesis. Plants in each test were infested with 12 egg masses (300 eggs) per plant in six applications of two masses, spaced 1 d apart. Leaf-feeding ratings in the first-generation tests were made 3 wk after egg hatch. Sheath-collar feeding ratings and stalk damage were made 60 d after egg hatch in the second-generation tests. In combination with several susceptible inbred lines, DE811 resistance showed partial dominance for resistance to leaf feeding by first-generation European corn borers and for resistance to sheath-collar feeding and stalk damage by second-generation European corn borers. Single crosses of DE811 X resistant inbred lines had high resistance to both European corn borer generations. 318 NAL Call. No.: 421 J822 Peroxidative responses of leaves in two soybean genotypes injured by twospotted spider mites (Acari: Tetranychidae). Hildebrand, D.F.; Rodriguez, J.G.; Brown, G.C.; Luu, K.T.; Volden, C.S. College Park, Md. : Entomological Society of America; 1986 Dec. Journal of economic entomology v. 79 (6): p. 1459-1465; 1986 Dec. Includes references. Language: English Descriptors: Glycine max; Genotypes; Tetranychus urticae; Pest resistance; Leaves; Plant damage; Lipid peroxidation; Peroxidase; Catalase; Chlorophyll 319 NAL Call. No.: 100 AR42F Pest Control in Arkansas cereal crops through genetic resistance. Bacon, R.K.; Moldenhauer, K.A.K.; York, J.O. Fayetteville, Ark. : The Station; 1990 May. Arkansas farm research - Arkansas Agricultural Experiment Station v. 39 (3): p. 8. ill; 1990 May. Language: English Descriptors: Arkansas; Oryza sativa; Zea mays; Sorghum bicolor; Triticum; Avena sativa; Breeding aims; Disease resistance; Insect pests; Resistance 320 NAL Call. No.: SB299.S9A1 Phytomelanin: development and role in hybrid resistance to Homoeosoma electellum larvae (Lepidoptera: Pyrallidae). Rogers, C.E.; Stafford, R.E.; Kreitner, G.L. Memphis, Tenn. : International Sunflower Congress; 1982 Mar14. Proceedings of the ... International Sunflower Conference. p. 138-141; 1982 Mar14. Paper presented at the "10th International Sunflower Conference," March 14-18, 1982, Surfers Paradise, Australia. Includes 10 references. Language: English Descriptors: Helianthus annuus; Hybrids; Resistance; Insect pests; Homoeosoma electellum; Larvae; Melanins; PeRicarp; Layers; Breeding aims 321 NAL Call. No.: 421 J822 Pink bollworm (Lepidoptera: Gelechiidae) egg hatch, larval success, and pupal and adult survival on okra- and normal-leaf cotton. Wilson, F.D.; George, B.W.; Fry, K.E.; Szaro, J.L.; Hennenberry, T.J.; Clayton, T.E. College Park, Md. : Entomological Society of America; 1986 Dec. Journal of economic entomology v. 79 (6): p. 1671-1675; 1986 Dec. Includes references. Language: English Descriptors: Arizona; Gossypium hirsutum; Strain differences; Pectinophora gossypiella; Pest resistance; Plant damage; Survival; Mortality; Developmental stages; Boll; Temperatures; Microclimate 322 NAL Call. No.: 64.8 C883 Pink bollworm resistance, lint yield, and earliness of cotton isolines in a resistant genetic background. Wilson, F.D. Madison, Wis. : Crop Science Society of America; 1987 Sep. Crop science v. 27 (5): p. 957-960; 1987 Sep. Includes references. Language: English Descriptors: Arizona; Gossypium hirsutum; Cultivars; Isogenic lines; Pectinophora gossypiella; Pest resistance; Plant morphology; Plant damage; Crop yield; Earliness 323 NAL Call. No.: 64.8 C883 Pink bollworm resistance, lint yield, and lint yield components of okra-leaf cotton in different genetic backgrounds. Wilson, F.D. Madison, Wis. : Crop Science Society of America; 1986 Nov. Crop science v. 26 (6): p. 1164-1167; 1986 Nov. Includes 17 references. Language: English Descriptors: Arizona; Gossypium hirsutum; Pectinophora gossypiella; Pest resistance; Lint; Crop yield; Yield components; Genetics; Insect control; Seeds; Leaves; Heritability; Canopy; Plant breeding; Stress; Arid Zones; Genotype environment interaction 324 NAL Call. No.: 420 K13 Plant damage and survival of European corn borer (Lepidoptera: Pyralidae) larvae reared for 22 years on resistant and susceptible inbred lines of maize. Guthrie, W.D.; Jarvis, J.L. Lawrence, Kan. : The Society; 1990 Jan. Journal of the Kansas Entomological Society (63): p. 193-195; 1990 Jan. Includes references. Language: English Descriptors: Zea mays; Ostrinia nubilalis; Larvae; Cultivars; Resistance; Susceptibility; Inbreeding 325 NAL Call. No.: 421 J822 Plant resistance studies with Diuraphis noxia (Homoptera: Aphididae), a new United States wheat pest. Webster, J.A.; Starks, K.J.; Burton, R.L. College Park, Md. : Entomological Society of America; 1987 Aug. Journal of economic entomology v. 80 (4): p. 944-949; 1987 Aug. Includes references. Language: English NAL Call. No.: 421 J822 Descriptors: U.S.A.; Hemiptera; Gramineae; Pest resistance; Germplasm; Screening; TolerancesPlant resistance studies with Diuraphis noxia (Homoptera: Aphididae), a new 326 NAL Call. No.: 420 F662 Plant resistance to insects attacking corn and grain sorghum. Wiseman, B.R.; Davis, F.M. Gainesville, Fla. : Florida Entomological Society; 1990 Sep. Florida entomologist v. 73 (3): p. 446-458; 1990 Sep. Includes references. Language: English Descriptors: Zea mays; Sorghum bicolor; Helicoverpa; Zea; Spodoptera frugiperda; Diatraea grandiosella; Ostrinia nubilalis; Contarinia sorghicola; Pest resistance; Literature reviews 327 NAL Call. No.: 420 F662 Plant resistance to insects in cotton. Parrott, W.L. Gainesville, Fla. : Florida Entomological Society; 1990 Sep. Florida entomologist v. 73 (3): p. 392-396; 1990 Sep. Includes references. Language: English Descriptors: Gossypium hirsutum; Heliothis virescens; Helicoverpa zea; Pest resistance; Gossypol; Plant glands 328 NAL Call. No.: 420 F662 Plant resistance to insects in vegetables for the southern United States. Schalk, J.M. Gainesville, Fla. : Florida Entomological Society; 1990 Sep. Florida entomologist v. 73 (3): p. 396-410; 1990 Sep. Literature review. Includes references. Language: English Descriptors: Southeastern states of U.S.A.; Vegetables; Insect pests; Pest resistance; Cultivars; Literature reviews 329 NAL Call. No.: 421 J822 Plot size and shape in relation to soybean resistance for velvetbean caterpillar (Lepidoptera: Noctuidae). Funderburk, J.E.; Soffes, A.R.; Barnett, R.D.; Herzog, D.C.; Hinson, K. Lanham, Md. : Entomological Society of America; 1990 Oct. Journal of economic entomology v. 83 (5): p. 2107-2110; 1990 Oct. Includes references. Language: English Descriptors: Florida; Glycine max; Cultivars; Pest resistance; Anticarsia gemmatalis; Defoliation; Experimental design; Larvae; Population density; Plot size Abstract: During 1986, 1987 and 1988, selected plot sizes andshapes were evaluated for suitability in field experiments designed to compare soybean,Glycine max (L.) Merrill, cultivars for resistance to larvae of the velvetbean caterpillar, Anticarsia gemmatalis (Hubner). Plot size or shape did not significantly affect the relativerankings between cultivars in density or percentage of defoliation; therefore, any of the plotsizes or shapes examined in our experiments appear suitable for use in field experiments tocompare soybean cultivars for resistance to this defoliating pest. Plot size and shapeinfluenced the mean and precision of density and injury estimates. Estimates of larval density and percentage of defoliation were greater in plots of two or more rows than in one- row and hillplots. Precision of density and percentage of defoliation estimates were best for the plot sizeof two linear rows each 3 m long. Consequently, a plot size of two linear rows each 3 mlong appears the best option for field screening experiments. 330 NAL Call. No.: 421 EN895 Pod hairs as a factor in Vigna vexillata resistance to the pod-sucking bug, Clavigralla tomentosicollis. Chiang, H.S.; Singh, S.R. Dordrecht : Kluwer Academic Publishers; 1988 May. Entomologia experimentalis et applicata v. 47 (2): p. 195-199; 1988 May. Includes references. Language: English Descriptors: Taiwan; Vigna vexillata; Vigna unguiculata; Varieties; Crop damage; Clavigralla tomentosicollis; Pest resistance; Seeds 331 NAL Call. No.: S601.A34 Population development of Bemisia tabaci (Homoptera: Aleurodidae) on various cotton cultivars in Cukurova, Turkey. Ozgur, A.F.; Sekeroglu, E. Amsterdam : Elsevier; 1986 Aug. Agriculture, ecosystems and environment v. 17 (1/2): p. 83-88; 1986 Aug. Papers presented at a symposium on Bemisia Tabaci -- Ecology and Control, at the XVII International Congress of Entomology, Aug 19-23, 1984, Hamburg, F.R.G. Includes references. Language: English Descriptors: Turkey; Gossypium barbadense; Gossypium herbaceum; Gossypium hirsutum; Cultivars; Bemisia tabaci; Population dynamics; Pest resistance; Plant breeding; Biological control 332 NAL Call. No.: SB249.N6 Preference and nonpreference of boll weevils to selected cotton. Jones, J.E.; Dickson, J.I.; Beasley, J.P. Memphis, Tenn. : National Cotton Council and The Cotton Foundation; 1987. Proceedings - Beltwide Cotton Production Research Conferences. p. 98-102; 1987. Includes references. Language: English Descriptors: Gossypium hirsutum; Genotypes; Anthonomus grandis; Resistance to injurious factors; Insect pests 333 NAL Call. No.: 421 EN895 Preference of white-backed planthopper, Sogatella furcifera to different rice varieties. Mishra, N.C.; Misra, B.C. Dordrecht : Kluwer Academic Publishers; 1991 Apr. Entomologia experimentalis et applicata v. 59 (1): p. 87-92; 1991 Apr. Includes references. Language: English Descriptors: Oryza sativa; Age; Crop growth stage; Pest resistance; Varieties; Sogatella furcifera; Feeding preferences; Oviposition; Shelter 334 NAL Call. No.: SB111.A2T74 Preliminary study of varietal reaction of soybean cultivars to leaf defoliators. Haq, M.; Rezaul Karim, A.N.M.; Alam, S. Ibadan, Nigeria : International Grain Legume Information Centre; 1985. Tropical grain legume bulletin (30): p. 29-30; 1985. Includes references. Language: English Descriptors: Bangladesh; Glycine max; Variety trials; Resistance; Spilosoma obliqua; Spodoptera litura 335 NAL Call. No.: SB608.M2I57 1987 Pre-release testing and seed production of insect resistant maize cultivars. Deutsch, J.A. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 267-270; 1987. Language: English Descriptors: Zea mays; Cultivars; Resistance; Insect pests; Variety trials; Seed production; Techniques 336 NAL Call. No.: SB249.N6 Present state of the art and science of cotton breeding for insect resistance in the Southeast. Jenkins, J.N. Memphis, Tenn. : National Cotton Council of America and The Cotton Foundation; 1982. Proceedings - Beltwide Cotton Production Research Conferences. p. 117-125; 1982. Meeting held January 3-7, 1982, Las Vegas, Nevada. Includes references. Language: English Descriptors: Gossypium hirsutum; Plant breeding; Pest resistance; Heliothis virescens; Anthonomus grandis; Lygus lineolaris; Trialeurodes vaporariorum 337 NAL Call. No.: HD9019.S432C47 1987 Problems of the Indonesian cereal seed industry., 1st ed. Marip, S. Tokyo : Asian Productivity Organization; 1987. Cereal seed industry in Asia and the Pacific. p. 227-230; 1987. Language: English Descriptors: Indonesia; Oryza sativa; Zea mays; Cereals; Seed industry; Improved varieties; Pest resistance 338 NAL Call. No.: SB608.M2I57 1987 Procedures and techniques for reading Cicadulina leafhoppers. Dabrowski, Z.T. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 84-93. ill; 1987. Includes references. Language: English Descriptors: Zea mays; Breeding programs; Resistance; Maize streak geminivirus; Disease vectors; Cicadulina; Species; Mass rearing; Techniques 339 NAL Call. No.: 64.8 C883 Productivity and tobacco budworm resistance of cotton developed between 1890-1986. Wharton, T.F.; Jenkins, J.N.; McCarty, J.C. Jr; Parrott, W.L. Madison, Wis. : Crop Science Society of America; 1991 Jan. Crop science v. 31 (1): p. 29-32; 1991 Jan. Includes references. Language: English Descriptors: Helicoverpa zea; Gossypium hirsutum; Pest resistance; Relationships; Crop yield; Lint; Bolls; Cultivars; Genetic resistance Abstract: There is a paucity of information on the relationships between modern (i.e., released in or after 1978) and historically obsolete cotton (Gossypium hirsutum L.) cultivars with respect to their ability to yield when grown in the presence of high levels of tobacco budworm (TBW), Heliothis virescens F. The objective of this study was to compare 18 cultivars of cotton developed between 1890 and 1986 for ability to yield when grown with and without TBW infestations. This comparison was accomplished by growing cultivars for 2 yr under two regimes: (i) artificial infestation with TBW (w/TBW) and (ii) complete control of all insect pests (w/o TBW). The regression equation for lint percentage w/o TBW on lint yield w/o TBW was Y = 26.8 + 0.0076 X, with an R2 of 0.58. Thus, lint percentage has increased 0.76% for every 100 kg ha-1 increase in lint yield. The regression equation for number of bolls w/o TBW on lint yields w/o TBW was Y = 73,689 + 402 X, with an R2 of 0.83. The regression equation for lint yield w/TBW on lint yield w/o TBW was Y = -48.4 + 0.69 X, with an R2 of 0.84. Thus, for every 1.00 kg of lint yield increase due to breeding during the 96-yr period there was a corresponding lint yield increase under TBW infestation of only 0.69 kg. The newer cultivars yielded more than the older cultivars, with number of boils per unit area and lint percentage being the primary components involved in increased yields. Some of the newer cultivars yielded as much w/TBW as some of the older cultivars w/o TBW. In addition, the newest cultivar (DES 119; 1986) yielded significantly more than any other cultivar when grown w/o TBW. It also yielded significantly more when grown w/TBW than any cultivar developed before 1982. 340 NAL Call. No.: SB249.N6 Progress in developing high tannin cotton for Heliothis resistance. Altamarino, T.P.; Smith, C.W.; Love, J.; Bell, A.A.; Stipanovic, R.D. Memphis, Tenn. : National Cotton Council and The Cotton Foundation; 1988. Proceedings - Beltwide Cotton Production Research Conferences. p. 553; 1988. Conference held on January 3-8, 1988, New Orleans, Louisiana. Includes abstract. Language: English Descriptors: Gossypium; Breeding aims; Resistance; Heliothis; Chemical constituents of plants; Plant organs; Diallel crossing 341 NAL Call. No.: 421 P99 Pyrethrum resistance to attack by Thrips tabaci Lind and T. nigropilosus Uzel (Thysanoptera: Thripidae) in Kenya. Anyango, J.J. Nakuru : The Pyrethrum Bureau; 1989 Dec. Pyrethrum post v. 17 (3): p. 86-89; 1989 Dec. Includes references. Language: English Descriptors: Kenya; Tanacetum cinerariifolium; Agronomic characteristics; Clones; Crop damage; Cultivars; Pedigree; Pest resistance; Thrips; Thrips tabaci; Crop yield 342 NAL Call. No.: SB599.J69 A rapid method for screening sorghum for resistance to Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae). Nwanze, K.F.; Reddy, Y.V.R. Clemson, S.C. : South Carolina Entomological Society; 1991 Jan. Journal of agricultural entomology v. 8 (1): p. 41-49; 1991 Jan. Includes references. Language: English Descriptors: India; Sorghum; Chilo partellus; Seedlings; Pest resistance; Leaves; Screening 343 NAL Call. No.: SB349.N372 1983 Reaction of Capsicum annuum L. genotypes to Scirtothrips dorsalis Hood. Suthanthirapandain, I.R.; Murugesan, N. Coimbatore, India : Faculty of Horticulture, Tamil Nadu Agricultural University; 1983. Proceedings of National Seminar on the production technology of tomato and chillies / editors, C.R. Muthukrishnan, S. Muthuswamy, R. Arumugam. p. 148-149; 1983. Includes references. Language: English Descriptors: Tamil nadu; Capsicum annuum; Genotypes; Pest resistance; Scirtothrips; Crop yield 344 NAL Call. No.: 500 AR44 Reaction of cotton cultivars and lines to cotton leaf crumple virus. Wilson, F.D.; Brown, J.K.; Butler, G.D. Jr Tempe, Ariz. : The Academy; 1989. Journal of the Arizona-Nevada Academy of Science v. 23 (1): p. 7-10; 1989. Includes references. Language: English Descriptors: Arizona; California; El salvador; Nicaragua; Gossypium hirsutum; Cultivars; Lines; Disease resistance; Infection; Plant viruses 345 NAL Call. No.: 421 J822 Reaction of locally improved pearl millets to three insect pests and two diseases in Senegal. Gahukar, R.T. Lanham, Md. : Entomological Society of America; 1990 Oct. Journal of economic entomology v. 83 (5): p. 2102-2106; 1990 Oct. Includes references. Language: English Descriptors: Senegal; Pennisetum americanum; Cultivars; Varietal resistance; Coniesta ignefusalis; Heliocheilus albipunctella; Lema; Plant pests; Sclerospora graminicola; Tolyposporium penicillariae Abstract: Eight locally improved pearl millet (Pennisetumamericanum (L.) Leeke) cultivars were compared with the traditional cultivar 'Souna'during the 1982-1984 crop seasons for their reaction to the attack of three insect pests andtwo diseases in Senegal. In 1984, 'H9-127' harbored lower larval populations of Lema planifronsWeise (Coleoptera: Chrysomelidae) than seven cultivars tested. When the level of stalk infestation and number of larval Acigona ignefusalis Hampson (Lepidoptera: Pyralidae) were compared among the nine cultivars, none was resistant. Cultivar 'IBV-8001' showed theleast susceptibility to Raghuva albipunctella De Joannis (Lepidoptera: Noctuidae), downymildew (caused by Sclerospora graminicola (Sacc.) Schroet.), and head smut (causedby Tolyposporium penicillariae Bref.). Because 'IBV-8001' is more resistant to oneinsect pest and two diseases and its yields are higher than those of 'Souna', its generalcultivation is recommended in major millet-growing zones of Senegal. 346 NAL Call. No.: 464.8 P56 Reaction of two maize synthetics to anthracnose stalk rot and northern corn leaf blight following recurrent selection for resistance to Diplodia stalk rot and European corn borer. Nyhus, K.A.; Russell, W.A.; Guthrie, W.D.; Martinson, C.A. St. Paul, Minn. : American Phytopathological Society; 1989 Feb. Phytopathology v. 79 (2): p. 166-169; 1989 Feb. Includes references. Language: English Descriptors: Zea mays; Recurrent selection; Disease resistance; Blights; Colletotrichum graminicola; Diplodia maydis; Ostrinia nubilalis; Pest resistance Abstract: Two maize (Zea mays) synthetics, BSAA and BSBB, were recurrently selected for resistance to Diplodia (Diplodia maydis) stalk rot (DSR) and leaf feeding caused by the first-generation European corn borer (Ostrinia nubilalis) (ECB), based on the reaction of S1 lines to artificial inoculations of D. maydis and artificial infestations of the ECB. This study was conducted to determine if plant factors contributing to DSR and ECB resistance also conferred resistance to anthracnose stalk rot (ASR) caused by Colletotrichum graminicola and northern corn leaf blight (NLB) caused by Exserohilum turcicum. Highly significant linear improvements in ASR resistance were observed over cycles (C0 to C4) of selection in both synthetics. These improvements mirrored the gains reported previously for DSR resistance in BSAA and BSBB and suggested that a genetic correlation exists between DSR resistance and ASR resistance in these populations. NLB severity ratings were recorded on six dates throughout the growing season. A natural logarithm transformation was used to describe the disease progress curve for each of the C0 to C4 populations of each synthetic. Linear regression of lnNLB ratings on lnDATE (days after inoculation) accounted for more than 97% of the variation among entries when averaged over replications. Our results showed no concomitant improvement in NLB resistance over cycles of selection for ECB resistance, contradicting previous reports that 2,4- dihydroxy-7-methoxy-2H-1,4-benzoxazin-3-one (DIMBOA), a know biochemical factor in leaf-feeding resistance, confers resistance to NLB. 347 NAL Call. No.: 64.8 C883 Reactions of eleven tetraploid and hexaploid wheat introductions to Hessian fly. Obanni, M.; Ohm, H.W.; Foster, J.E.; Patterson, F.L. Madison, Wis. : Crop Science Society of America; 1989 Mar. Crop science v. 29 (2): p. 267-269; 1989 Mar. Includes references. Language: English Descriptors: Triticum durum; Triticum aestivum; Tetraploids; Hexaploids; Pest resistance; Lines; Mayetiola destructor; Biotypes; Environmental temperature; Interactions; Greenhouse experimentation; Growth chambers Abstract: The expression of resistance of wheat (Triticum spp.) to the Hessian fly (Mayetiola destructor Say) is affected by cultivar, biotype, and temperature. The objectives of this study were to: (i) evaluate the resistance of seven durum wheat (T. durum desf.) and four common wheat (T.aestivum L.) introductions, and three wheat checks to biotypes B, D, and L of Hessian fly, and (ii) examine their expressions of resistance to biotype D at three temperatures. Tests against the three biotypes were conducted in a greenhouse at 19 +/- 2 degrees C; temperature experiments were conducted in a controlled environment chambers at 19, 23, and 26 +/- degrees C. In all experiments, 30 seeds of each wheat line were planted in a row in a 54 X 36 X 8 cm wooden flat filled with a greenhouse soil mixture. Twenty-one days after infestation, the seedlings were classified as resistant or susceptible. The 11 wheat introductions were resistant to biotypes B, D, and L under greenhouse conditions. Nearly all seedlings of the durum lines Portugal 2536, Portugal 2852, Rebeiro, BD 3431 and IN 8464 (H5H5) were resistant at 19, 23, and 26 degrees C. Fewer seedlings of the durum lines BD 3414, BD 3885, and PI 422297; and of the common wheat lines PI 86202, PI 117499, PI 134867, PI 321644, and Abe' (H5H5) were resistant at temperatures less than 19 degrees C. Resistance conferred by the H5 gene was expressed in a greater percentage of seedlings of IN 8464 than Abe, especially at temperatures less than 19 degrees C. These results are of practical importance to wheat breeders in tropical or sub-tropical regions of the world where Hessian fly is a serious pest of wheat. 348 NAL Call. No.: SB608.M2I57 1987 Rearing the corn earworm and fall armyworm for maize resistance studies. Burton, R.L.; Perkins, W.D. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 37-45. ill; 1987. Includes references. Language: English Descriptors: Georgia; Zea mays; Breeding programs; Resistance; Insect pests; Helicoverpa zea; Spodoptera frugiperda; Mass rearing; Techniques 349 NAL Call. No.: SB608.M2I57 1987 Rearing the southwestern corn borer and fall armyworms at Mississippi State. Davis, F.M. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 27-36. ill; 1987. Includes references. Language: English Descriptors: Mississippi; Zea mays; Breeding programs; Resistance; Insect pests; Diatraea grandiosella; Spodoptera frugiperda; Mass rearing; Techniques 350 NAL Call. No.: SB608.M2I57 1987 Recent developments in the CIMMYT Maize Program. Cantrell, R.P. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 2-4; 1987. Language: English Descriptors: Mexico; Zea mays; Breeding programs; Germplasm releases; Resistance; Insect pests; Boring insects 351 NAL Call. No.: 60.18 J82 Recurrent phenotypic selection for low grasshopper food preference in rangeland alfalfa. Berdahl, J.D.; Hewitt, G.B.; Miller, R.H. Denver, Colo. : Society for Range Management; 1990 May. Journal of range management v. 43 (3): p. 216-219; 1990 May. Includes references. Language: English Descriptors: South Dakota; Medicago sativa; Cultivars; Germplasm; Strains; Pest resistance; Defoliation; Melanoplus; Orthoptera; Plant pests; Feeding behavior; Heritability 352 NAL Call. No.: 421 J822 Recurrent seedling and individual-plant selection for potato leafhopper (Homoptera: Cicadellidae) resistance in alfalfa. Elden, T.C.; Elgin, J.H. Jr College Park, Md. : Entomological Society of America; 1987 Jun. Journal of economic entomology v. 80 (3): p. 690-695; 1987 Jun. Includes references. Language: English Descriptors: Medicago sativa; Populations; Phenotypes; Empoasca fabae; Pest resistance; Recurrent selection; Seedlings 353 NAL Call. No.: 64.8 C883 Recurrent selection for resistance to European corn borer in a corn synthetic and correlated effects on agronomic traits. Klenke, J.R.; Russell, W.A.; Guthrie, W.D. Madison, Wis. : Crop Science Society of America; 1986 Sep. Crop science v. 26 (5): p. 864-868; 1986 Sep. Includes references. Language: English Descriptors: Zea mays; Ostrinia nubilalis; Pest control; Pest resistance; Synthetic varieties; Recurrent selection; Genetic analysis; Crop yield; Plant breeding 354 NAL Call. No.: 421 J822 Reduced larva growth of two Leipidoptera (Noctuidae) on excised leaves of soybean infected with a mycorrhizal fungus. Rabin, L.B.; Pacovsky, R.S. College Park, Md. : Entomological Society of America; 1985 Dec. Journal of economic entomology v. 78 (6): p. 1358-1363; 1985 Dec. Includes references. Language: English Descriptors: Glycine max; Leaves; Cultivars; Pest resistance; Heliothis zea; Spodoptera frugiperda; Larvae; Pupae; Growth; Insect control; Soil inoculation; Glomus fasciculatus; Phosphorus fertilizers 355 NAL Call. No.: 64.8 C883 Reduction in insecticide use associated with cotton resistant to pink bollworm. Wilson, F.D.; Flint, H.M.; Bariola, L.A.; Chu, C.C. Madison, Wis. : Crop Science Society of America; 1991 Mar. Crop science v. 31 (2): p. 363-366; 1991 Mar. Includes references. Language: English Descriptors: Pectinophora gossypiella; Gossypium hirsutum; Insect pests; Cultivars; Lines; Pest resistance; Crop yield; Lint; Fiber quality; Earliness; Insecticides; Application date; Application rates; Bolls; Crop growth stage; Ethephon; Genetic resistance Abstract: Cotton (Gossypium hirsutum L.) growers use significant quantities of insecticides to control pink bollworm (PBW), Pectinophora gossypiella (Saunders). The germplasm line WC-12NL (nectariless, okra leaf, and early maturing) and 'Deltapine 61' (nectaried, normal leaf, and later maturing) were grown at Maricopa, AZ, and Brawley, CA, for three seasons. Irrigation water was terminated and plots were defoliated earlier than normal, a practice that favored the early-maturing line. Insecticides were applied as needed, based on PBW egg infestations of cotton bolls. The major objective was to determine whether insecticide use can be reduced or eliminated by growing WC-12NL. Other objectives were to compare WC-12NL with Deltapine 61 for PBW resistance, yield, earliness, and fiber properties; to study location and seasonal effects; and to determine whether the growth-regulating chemical ethephon (2- chloroethylphosphonic acid) would cause bolls to open earlier. The mean number of insecticide applications was 41% lower for WC-12NL than for Deltapine 61. First and last application dates averaged 21 d later and 10 d earlier. respectively, for WC-12NL. WC-12NL had significantly less seed damage caused by PBW, yielded significantly more lint, was significantly earlier, but had inferior fiber properties compared with Deltapine 61. Ethephon treatment increased earliness of Deltapine 61 but did not affect that of WC-12NL, probably because it was applied too late. Location and seasonal effects and numerous interactions occurred, but did not alter the main conclusion that a cotton line such as WC-12NL (but with improved fiber properties) could be valuable in areas where PBW is a problem. 356 NAL Call. No.: 421 J822 Relation of corn leaf aphid (Homoptera: Aphididae) colonization to DIMBOA content in maize inbred lines. Bing, J.W.; Guthrie, W.D.; Dicke, F.F.; Obrychi, J.J. Lanham, Md. : Entomological Society of America; 1990 Aug. Journal of economic entomology v. 83 (4): p. 1626-1632; 1990 Aug. Includes references. Language: English Descriptors: Zea mays; Inbred lines; Dimboa; Pest resistance; Rhopalosiphum maidis; Host parasite relationships; Incidence Abstract: Five inbred maize (Zea mays L.) lines (B37, B73, C103, Mo17, and 41:2504B) were evaluated from emergence to the eight-leaf stage for corn leaf aphid (Rhopalosiphum maidis (Fitch)) colonization. Concentration of 2,4-dihydroxy-7-methoxyl-1,4- benzoxazin-3-one (DIMBOA) in these inbred lines was analyzed from emergence to anthesis to determine its effect on corn leaf aphid colony development. Inbred line 41:2504B, which was colonized by corn leaf aphids as it emerged from the soil, had the highest DIMBOA concentration. Inbred lines B73 and B37 were low in DIMBOA and were colonized in the three- and six-leaf stages, respectively. Inbred lines C103 and Mo17 also were low in DIMBOA and supported small colonies after the six- and seven-leaf stages, respectively. Contrary to findings of previous studies, DIMBOA does not seem to be the primary factor conditioning resistance to the corn leaf aphid in these inbreds. 357 NAL Call. No.: 450 EU6 Relation of cotton cultivars to the cotton-pest problem in the Sudan Gezira. Bindra, O.S. Wageningen : Netherlands Study Circle of Plant Breeding; 1985 Nov. Euphytica v. 34 (3): p. 849-856; 1985 Nov. Includes references. Language: English Descriptors: Sudan; Gossypium barbadense; Gossypium hirsutum; Cultivars; Irrigated conditions; Bemisia tabaci; Heliothis armigera; Pest resistance; Pest control 358 NAL Call. No.: 421 J822 Relationship between gossypol gland density on cotton squares and resistance to tobacco budworm (Lepidoptera: Noctuidae) larvae. Parrott, W.L.; Jenkins, J.N.; Mulrooney, J.E.; McCarty, J.C. Jr; Shepherd, R.L. Lanham, Md. : Entomological Society of America; 1989 Apr. Journal of economic entomology v. 82 (2): p. 589-592. ill; 1989 Apr. Includes references. Language: English Descriptors: Mississippi; Gossypium hirsutum; Cultivars; Lines; Pest resistance; Heliothis virescens; Larvae; Feeding behavior; Glands (plant); Gossypol; Plant secretions Abstract: Young tobacco budworm, Heliothis virescens (F.), larvae prefer to feed along the margin area of the calyx crown of cotton (Gossypium hirsutum L.) squares. This area is devoid of gossypol glands. On resistant cotton lines, which contain glands in the calyx crown, the larvae feed sporadically on the tissue and avoid the gossypol glands. The numbers of gossypol glands on bracts of small squares, calyx crown, bract mid-rib, and the entire calyx differed significantly between a susceptible and three resistant cotton lines. When young larvae were placed on squares for 12 d, the lines with greater than 80 glands per small square bract or 30 glands per calyx crown produced larvae significantly smaller than did lines with fewer glands. 359 NAL Call. No.: 64.8 C883 Relationship between resistance to Hessian fly and powdery mildew in soft white spring wheat PI 468960. Sunderman, D.W.; Hatchett, J.H. Madison, Wis. : Crop Science Society of America; 1986 Sep. Crop science v. 26 (5): p. 1071-1072; 1986 Sep. Includes references. Language: English Descriptors: Triticum aestivum; Mayetiola destructor; Erysiphe graminis; Mildews; Pest resistance; Disease resistance; Plant breeding; Pest control; Disease control; Biological control; Genes; Recombination 360 NAL Call. No.: SB599.J69 Relationship of European corn borer resistance in sorghum to HCN-p and DIMBOA content in leaf and sheath-collar tissue. Guthrie, W.D.; Haskins, F.A.; Gorz, H.J. Clemson, S.C. : South Carolina Entomological Society; 1988 Jan. Journal of agricultural entomology v. 5 (1): p. 21-28. ill; 1988 Jan. Includes references. Language: English Descriptors: Sorghum bicolor; Genotypes; Resistance; Ostrinia nubilalis; Leaves; Tissues; Chemical analysis; Hydrocyanic acid; Relationships 361 NAL Call. No.: QL461.E532 Relationship of maize tissue pH and resistance to whorl leaf feeding and stalk tunneling by the European corn borer (Lepidoptera: Pyralidae). Byrne, P.F.; Darrah, L.L.; Simpson, K.B.; Keaster, A.J.; Barry, B.D.; Zuber, M.S. Lanham, Md. : Entomological Society of America; 1990 Aug. Environmental entomology v. 19 (4): p. 1091-1096; 1990 Aug. Includes references. Language: English Descriptors: Zea mays; Ostrinia nubilalis; Tissues; Ph; Resistance to injurious factors; Inbreeding; Genotypes Abstract: A study was conducted to investigate whether pH values of selected maize, Zea mays (L.), tissues could serve as useful screening criteria for resistance to whorl leaf feeding and stalk tunneling by the European corn borer, Ostrinia nubilalis (Hubner). Inbred line CI31A displayed the highest whorl leaf pH and had the least leaf feeding. Over all six maize genotypes, however, only a low level of correlation (P < 0.05, r = -0.35) between whorl leaf ph and whorl leaf feeding was observed. Similarly, in a study of four inbred lines, correlations of leaf sheath and stalk pith pH with amount of stalk tunneling were inconsistent and of low magnitude. When whorl leaf, leaf sheath, and stalk pith pH were determined in four cycles of selection of a maize population which had undergone recurrent selection for resistance to both generations of European corn borer, no significant relationships between pH and cycle of selection were observed. Measurement of pH of these plant parts apparently would not be a useful technique to select genotypes resistant to European corn borer. 362 NAL Call. No.: 420 IN23 Relative loss of seed cotton yield by jassid and bollworms in some cotton genotypes (Gossypium hirsutum L.). Bhat, M.G.; Joshi, A.B.; Singh, M. New Delhi : Entomological Society of India; 1984 Jun. Indian journal of entomology v. 46 (pt. 2): p. 169-173; 1984 Jun. Includes references. Language: English Descriptors: India; Gossypium hirsutum; Genotypes; Earias; Heliothis; Pectinophora gossypiella; Pest resistance; Yield losses 363 NAL Call. No.: 64.8 C883 Relative resistance of cotton lines to pink bollworm. Wilson, F.D. Madison, Wis. : Crop Science Society of America; 1990 May. Crop science v. 30 (3): p. 500-504; 1990 May. Includes references. Language: English Descriptors: Gossypium hirsutum; Lines; Pest resistance; Pectinophora gossypiella; Diallel analysis; F1 hybrids; Specific combining ability; General combining ability; Reciprocal effects Abstract: Pink bollworm (PBW), Pectinophora gossypiella Saunders, is a serious insect pest of cotton, Gossypium hirsutum L., in the irrigated deserts of the southwestern USA. Several sources of resistance to PBW have been identified in cotton. The objectives of this study were to determine whether certain other sources are equal or superior to a resistance standard, AET-5 (as shown by the amount of seed damage sustained by the plants), and whether F1 hybrids show higher levels of resistance than expected based on parental response. A series of diallel and generation-mean experiments was grown in the field at Tempe and Maricopa, AZ, from 1982 to 1987. No insecticide was applied. The diallel analyses revealed significant general and specific combining ability (GCA and SCA) and reciprocal effects, as well as year X GCA and year X SCA interactions, which complicated the interpretation of the data. However, it was clear that of the 13 lines evaluated, only Stoneville 7A okra leaf was equal to AET-5 as a source of PBW resistance. The line 7203-14-104, while showing some PBW resistance, was inferior to AET-5. Furthermore generation-mean analysis of AET-5 X 7203-14-104 data revealed large nonadditive genetic effects, which would make it difficult to combine or transfer resistance. Texas 39C-1-L behaved inconsistently with respect to PBW resistance; however, this line has a higher yield potential than AET-5 and, from this standpoint, deserves continued evaluation. No F1 hybrid and only one F1 reciprocal hybrid had significantly lower seed damage than that of the lowest parent. 364 NAL Call. No.: QL461.G4 Relative resistance of three soybean plant introductions to the soybean looper and velvetbean caterpillar in Georgia. Beach, R.M.; Todd, J.W.; Boerma, H.R. Tifton, Ga. : The Entomological Science Society; 1988 Oct. Journal of entomological science v. 23 (4): p. 399-401; 1988 Oct. Includes references. Language: English Descriptors: Georgia; Glycine max; Pseudoplusia includens; Anticarsia gemmatalis; Resistance; Plant breeding 365 NAL Call. No.: 420 IN23 Relative resistance of wheat varieties to Rhizopertha dominica Fabricius. Singh, B.; Pandey, S.; Prasad, J.; Singh, Y.P. New Delhi : Entomological Society of India; 1986-1988. Indian journal of entomology v. 48 (pt.1): p. 77-81; 1986-1988. Includes references. Language: English Descriptors: Triticum aestivum; Varieties; Pest resistance; Coleoptera 366 NAL Call. No.: 420 IN23 Relative susceptibility of some bean genotypes to aphid, Aphis craccivora Koch. Gupta, R.N.; Pandey, R.C.; Katiyar, R.R. New Delhi : Entomological Society of India; 1985 Sep. Indian journal of entomology v. 47 (pt.3): p. 274-277; 1985 Sep. Includes statistical data. Includes references. Language: English Descriptors: India; Beans (phaseolus); Genotypes; Susceptibility; Aphis craccivora; Pest resistance 367 NAL Call. No.: 421 J822 Reproduction and damage by Russian wheat aphid (Homoptera: Aphididae) as influenced by fungal endophytes and cool-season turfgrasses. Kindler, S.D.; Breen, J.P.; Springer, T.L. Lanham, Md. : Entomological Society of America; 1991 Apr. Journal of economic entomology v. 84 (2): p. 685-692; 1991 Apr. Includes references. Language: English Descriptors: U.S.A.; Grasses; Lawns and turf; Genotypes; Pest resistance; Screening; Crop damage; Diuraphis noxia; Endophytes; Fungi; Interactions; Reproduction; Seasonal variation Abstract: In the Pacific Northwest of the United States, certain cool-season turfgrasses grown for seed are colonized by Russian wheat aphid, Diuraphis noxia (Mordvilko). The objectives of our study were to determine which turf grass species are colonized and damaged by the aphid, to determine if genetic resistance occurs within genotypes of the same species, and to determine if fungal endophytes enhance aphid resistance in turfgrasses. Compared with cereal species and intermediate wheatgrass (Elytrigia intermedia (Host) Nevski subsp. intermedia), turfgrass species were not as susceptible to Russian wheat aphid. Festuca spp. were better hosts than other grass species. Perennial ryegrass (Lolium perenne L. 'Repell' and 'Regal') had resistance 6 wk after infestation. Redtop (Agrostis alba L. 'Streaker'), sheep fescue (Festuca ovina L. 'Azay'), slender creeping red fescue (F. rubra subsp. litoralis 'Logro'), and tall fescue (F. arundinacea Screb. 'Mustang,' 'Apache,' and 'Rebel') had intermediate resistance to Russian wheat aphid feeding. 'Repell' and 'Regal' were infected with a fungal endophyte, Acremonium lolii Latch, Christenson, & Samuels. 'Mustang' was infected with Acremonium coenophialum Morgan-Jones & Gams, and 'Wrangler' was infected with an unidentified species of Acremonium. Sheep fescue 'Bighorn' and strong creeping fed fescue (F. rubra L. subsp. rubra, 'Ruby') were infected with Epichloe typhina (Pers. ex Fr.) Tul. 'Repell' and 'Regal' showed the greatest resistance to aphid feeding, suggesting that plant resistance may have been enhanced by the presence of fungal endophytes. Observations suggest that Russian wheat aphid survival was better on isogenic lines of endophyte-free tall fescue and that nymphs were more sensitive to the presence of fungal endophyte than adults. Researchers in the areas of plant resistance and germplasm screening for genetic resistance to aphids must be cognizant of fungal endophyte and its effect on aphid biology. 368 NAL Call. No.: QL461.E532 Reproduction of Schizaphis graminum (Homoptera: Aphididae) on resistant and susceptible wheat genotypes during simulated drought stress induced with polyethylene glycol. Sumner, L.C.; Dorschner, K.W.; Ryan, J.D.; Eikenbary, R.D.; Johnson, R.C.; McNew, R.W. College Park, Md. : Entomological Society of America; 1986 Jun. Environmental entomology v. 15 (3): p. 756-762; 1986 Jun. Includes references. Language: English Descriptors: Triticum aestivum; Genotypes; Schizaphis graminum; Pest resistance; Susceptibility; Drought; Stress conditions; Reproduction; Population dynamics 369 NAL Call. No.: 421 J822 Reproduction of the chinch bug (Heteroptera: Lygaeidae) on new resistance sources in grain sorghum. Mize, T.W.; Wilde, G. College Park, Md. : Entomological Society of America; 1986 Jun. Journal of economic entomology v. 79 (3): p. 664-667; 1986 Jun. Includes references. Language: English Descriptors: Sorghum bicolor; Genotypes; Pest resistance; Blissus leucopterus; Reproduction; Fecundity; Screening 370 NAL Call. No.: SB950.3.M3J68 Resistance and yield responses of rice cultivars to the black bug Scotinophara coarctata (F.) (Hemiptera: Pentatomidae). Heinrichs, E.A.; Domingo, I.T.; Castillo, E.H. Kuala Lumpur : The Malaysian Plant Protection Society; 1987 Jun. Journal of plant protection in the tropics v. 4 (1): p. 55-64; 1987 Jun. Includes references. Language: English Descriptors: Philippines; Oryza sativa; Cultivars; Resistance; Scotinophara; Yield response functions; Crop damage; Yield losses; Economic evaluation 371 NAL Call. No.: SB599.C8 Resistance breeding in root and tuber crops at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria. Hahn, S.K.; Isoba, J.C.G.; Ikotun, T. Guildford : Butterworths; 1989 Jun. Crop protection v. 8 (3): p. 147-168; 1989 Jun. Literature review. Includes references. Language: English Descriptors: Nigeria; Manihot esculenta; Ipomoea batatas; Colocasia esculenta; Dioscorea; Xanthosoma sagittifolium; Disease resistance; Pest resistance; Breeding programs; Screening tests; Cassava mosaic virus; Xanthomonas campestris; Mononychellus tanajoa; Hemiptera; Cylas; Plant viruses; Pythium myriotylum; Plant parasitic nematodes 372 NAL Call. No.: SB950.A2B74 Resistance in maize to the African armyworm, Spodoptera exempta (Walker) (Lepidoptera: Noctuidae). Okello-Ekochu, E.J.; Wilkins, R.M. London : British Crop Protection Council; 1988. Proceedings of the ... British Crop Protection Conference-Pests and Diseases v. 3: p. 1161-1166; 1988. Includes references. Language: English Descriptors: Zea mays; Insect pests; Spodoptera exempta; Age differences; Varieties; Resistance; Breeding aims 373 NAL Call. No.: 420 F662 Resistance in peanut to major arthropod pests. Lynch, R.E. Gainesville, Fla. : Florida Entomological Society; 1990 Sep. Florida entomologist v. 73 (3): p. 422-445; 1990 Sep. Literature review. Includes references. Language: English Descriptors: U.S.A.; Arachis hypogaea; Insect pests; Pest resistance; Literature reviews 374 NAL Call. No.: S542.A8A34 Resistance in peas, Pisum sativum L., against pea leaf miner, Chromatomyia horticola. Sehgal, V.K.; Sen, A.; Singh, K.V. Canberra : Australian Centre for International Agricultural Research; 1987. ACIAR proceedings series (18): p. 299; 1987. In the series analytic: Food legume improvement for Asian farming systems / edited by E.S. Wallis and D.E. Byth. Proceedings of international workshop held on September 1-5, 1986, Khon Kaen, Thailand. Language: English Descriptors: India; Pisum sativum; Diptera; Cultivars; Pest resistance; Insect control 375 NAL Call. No.: QL461.I57 Resistance in sorghum to the shootfly, Atherigona soccata Rondani. Singh, B.U.; Rana, B.S. Oxford, Eng. : Pergamon Press; 1986. Insect science and its application v. 7 (5): p. 577-587; 1986. Literature review. Includes references. Language: English Descriptors: Sorghum bicolor; Atherigona soccata; Cultivars; Pest resistance; Plant breeding; Seedlings; Trichomes; Screening; Inheritance; Stability 376 NAL Call. No.: 100 N813B Resistance in sunflower to head infesting insects. Brewer, G.J.; Charlet, L.D. Fargo, N.D. : The Station; 1989 Mar. North Dakota farm research - North Dakota, Agricultural Experiment Station v. 46 (5): p. 23-24; 1989 Mar. Includes references. Language: English Descriptors: Helianthus annuus; Germplasm; Resistance; Insect pests 377 NAL Call. No.: 421 EN895 Resistance in the wild crop relatives Avena macrostachya and Hordeum bogdani to the aphid Rhopalosiphum padi. Weibull, J. Dordrecht : Kluwer Academic Publishers; 1988 Oct. Entomologia experimentalis et applicata v. 48 (3): p. 225-232; 1988 Oct. Includes references. Language: English Descriptors: Avena; Hordeum; Wild plants; Genetic resources; Pest resistance; Rhopalosiphum padi; Amino acids; Growth; Avena sativa; Hordeum vulgare; Plant anatomy 378 NAL Call. No.: 421 J822 Resistance in triticale to the Russian wheat aphid (Homoptera: Aphididae). Webster, J.A. Lanham, Md. : Entomological Society of America; 1990 Jun. Journal of economic entomology v. 83 (3): p. 1091-1095; 1990 Jun. Includes references. Language: English Descriptors: U.S.A.; Triticale; Cultivars; Lines; Pest resistance; Hemiptera Abstract: The Russian wheat aphid, Diuraphis noxia (Mordvilko), has become a serious threat to wheat, Triticum spp., production in the western United States. The use of resistant wheat cultivars as a management strategy, for this pest is highly, desirable. Thus, several collections of wheat and related species have been tested to locate sources of resistance. The USDA-ARS National Triticale Collection, consisting of 731 lines, was one of the collections tested. Initial mass screening tests were done in greenhouse flats in environmental chambers. Seven triticale, xTriticosecale Wittmack, lines with varying degrees of resistance were identified. Four lines from Russia (PI 386148, PI 386149, PI 386150, and PI 386156) and one line from California (Cl 82) were the most resistant in the screening tests. Additional tests were done with all seven lines to determine the mechanisms of resistance. Antibiosis appeared to be the most discernible mechanism of resistance, with significantly lower reproduction occurring on the triticales than on 'TAM W-101' wheat, Triticum aestivum L., or 'Snoopy' rye, Secale cereale L. Greater levels of resistance in the triticales over 'TAM W-101' were observed also in antixenosis and tolerance tests. The Russian triticales have been incorporated into the wheat breeding program for development of germplasm resistant to D. noxia. 379 NAL Call. No.: SB189.A1C4 Resistance in Triticum species to the Russian wheat aphid, Diuraphis noxia (Mordvilko) (Hemiptera : Aphididae). Du Toit, F.; Van Niekerk, H.A. Szeged : Cereal Research Institute; 1985. Cereal research communications v. 13 (4): p. 371-378; 1985. Includes references. Language: English Descriptors: Triticum monococcum; Triticum durum; Triticum aestivum; Resistance; Insect pests; Hemiptera 380 NAL Call. No.: QD1.A45 Resistance of cereal crops to aphids: role of allelochemicals. Corcuera, L.J.; Argandona, V.H.; Zuniga, G.E. Washington, D.C. : The Society; 1987. ACS Symposium series - American Chemical Society (330): p. 129-135; 1987. Includes references. Language: English Descriptors: Cereals; Pest resistance; Agricultural chemicals; Hemiptera 381 NAL Call. No.: QL461.S65 Resistance of cotton varieties to Heliothis zea. Mshiu, E.P.; Young, J.H.; Willson, L.J.; Mussett, K.S. College Station, Tex. : Southwestern Entomological Society; 1987 Sep. The Southwestern entomologist v. 12 (3): p. 183-189; 1987 Sep. Includes references. Language: English Descriptors: Oklahoma; Gossypium hirsutum; Varieties; Heliothis zea; Pest resistance; Screening; Yield losses 382 NAL Call. No.: S16.F5J68 Resistance of cruciferous crops to turnip root fly. Ruuth, P. Helsinki : The Scientific Agricultural Society of Finland; 1988. Journal of agricultural science in Finland : Maataloustieteellinen aikakauskirja v. 60 (4): p. 269-279; 1988. Includes references. Language: English Descriptors: Sweden; Cruciferae; Cultivars; Crop damage; Plant breeding; Pest resistance; Delia floralis; Symptoms; Wilting 383 NAL Call. No.: 420 EN86 Resistance of maize genotypes to the maize stalk borer, Busseola fusca (Fuller) (Lepidoptera: Noctuidae). Van Rensburg, J.B.J.; Malan, C. Pretoria : The Society; 1990 Mar. Journal of the Entomological Society of Southern Africa v. 53 (1): p. 49-55; 1990 Mar. Includes references. Language: English Descriptors: Zea mays; Busseola fusca; Larvae; Genotypes; Pest resistance; Inbreeding; Antibiosis 384 NAL Call. No.: 470 C16C Resistance of maize germ plasm to European corn borer, Ostrinia nubilalis, as related to geographical origin. Reid, L.; Arnason, J.T.; Nozzolillo, C.; Hamilton, R. Ottawa, Ont. : National Research Council of Canada; 1990 Feb. Canadian journal of botany; Journal canadien de botanique v. 68 (2): p. 311-316; 1990 Feb. Includes references. Language: English Descriptors: Canada; Mexico; Netherlands; Switzerland; Poland; German federal republic; Zea mays; Ostrinia nubilalis; Insect pests; Pest resistance; Geographical races; Genetic variation; Altitude; Latitude; Plant breeding 385 NAL Call. No.: 500 K41 Resistance of pepper, Capsicum annum L. to European corn borer, Ostrinia nubilalis (Hubner). Ajlan, A.A.; Knavel, D.E.; Rodriguez, J.G. Louisville, K.Y. : The Academy; 1985 Oct. Transactions of the Kentucky Academy of Science v. 46 (3/4): p. 99-103; 1985 Oct. Includes references. Language: English Descriptors: Kentucky; Ostrinia nubilalis; Capsicum annuum; Cultivars; Pest resistance; Breeding aims 386 NAL Call. No.: 30 AD9 Resistance of plants to insects. Maxwell, F.G.; Jenkins, J.N.; Parrott, W.L. San Diego, Calif. : Academic Press; 1972. Advances in agronomy v. 24: p. 187-230; 1972. Literature review. Language: English Descriptors: Crops; Forest trees; Insect pests; Plant breeding; Pest resistance; Problem analysis; Resistance mechanisms; Varietal resistance; Literature reviews 387 NAL Call. No.: 500 K41 Resistance of selected soybean genotypes to the twospotted spider mite Tetranychus urticae Koch (Arcarina: Tetranychidae). Mohammad, A.A.A.; Rodriguez, J.G. Louisville, K.Y. : The Academy; 1985 Oct. Transactions of the Kentucky Academy of Science v. 46 (3/4): p. 92-98; 1985 Oct. Includes references. Language: English Descriptors: Kentucky; Glycine max; Genotypes; Pest resistance; Tetranychus urticae; Testing 388 NAL Call. No.: SB599.J69 Resistance of sorghum genotypes to leaf feeding by first-generation European corn borer larvae compared with maize genotypes. Guthrie, W.D.; Dharmalingam, S.; Jarvis, J.L.; Kindler, D.; Atkins, R.E.; Tseng, C.T.; Zhou, D. Clemson, S.C. : South Carolina Entomological Society; 1985 Apr. Journal of agricultural entomology v. 2 (2): p. 175-184; 1985 Apr. Includes references. Language: English Descriptors: Sorghum bicolor; Genotypes; Ostrinia nubilalis; Zea mays; Pest resistance 389 NAL Call. No.: SB599.J69 Resistance of the soybean breeding line GatIR 81-296 to foliar feeding by three Spodoptera sp. Beach, R.M.; Todd, J.W. Clemson, S.C. : South Carolina Entomological Society; 1987 Jul. Journal of agricultural entomology v. 4 (3): p. 193-199; 1987 Jul. Includes references. Language: English Descriptors: Glycine max; Plant breeding; Pest resistance; Testing; Foliage; Feeding; Spodoptera frugiperda; Spodoptera ornithogalli; Spodoptera eridania; Laboratory tests; Bioassays 390 NAL Call. No.: 100 T31P Resistance to biotype E greenbug among sorghum hybrids in a state performance test. Teetes, G.L.; Peterson, G.C.; Miller, F.R.; Thindwa, H.; Pietsch, D.R. College Station, Tex. : The Station; 1989 Apr. PR - Texas Agricultural Experiment Station (4655): 6 p.; 1989 Apr. Includes references. Language: English Descriptors: Texas; Sorghum; Schizaphis graminum; Hybrids; Variety trials; Insect control; Irrigated stands; Crop yield; Lodging 391 NAL Call. No.: 64.8 C883 Resistance to colonization by the wheat curl mite in Aegilops squarrosa and its inheritance after transfer to common wheat. Thomas, J.B.; Conner, R.L. Madison, Wis. : Crop Science Society of America; 1986 May. Crop science v. 26 (3): p. 527-530. ill; 1986 May. Includes references. Language: English Descriptors: Triticum aestivum; Aegilops squarrosa; Eriophyes; Aceria tulipae; Wheat streak mosaic virus; Pest resistance; Heritability; Plant breeding 392 NAL Call. No.: SB191.W5I5 1988 Resistance to colonization by the wheat curl mite in Triticum-Agropyron hybrids and Robertsonian translocations. Whelan, E.D.P.; Thomas, J.B. Cambridge : Published by the Institute of Plant Science Research, Cambridge Laboratory; 1988. Proceedings of the Seventh International Wheat Genetics Symposium / edited by T.E. Miller and R.M.D. Koebner. p. 913-916; 1988. Includes references. Language: English Descriptors: Triticum aestivum; Spring wheat; Cultivars; Elymus elongatus; Hybrids; Resistance; Eriophyes; Disease vectors; Wheat streak mosaic virus; Chromosome addition; Chromosome substitution; Monosomics; Chromosome translocation 393 NAL Call. No.: 420 F662 Resistance to fall armyworm in converted sorghums. Diawara, M.M.; Wiseman, B.R.; Isenhour, D.J.; Lovell, G.R. Gainesville, Fla. : Florida Entomological Society; 1990 Mar. Florida entomologist v. 73 (1): p. 111-117; 1990 Mar. Includes references. Language: English Descriptors: Sorghum bicolor; Spodoptera frugiperda; Cultivars; Pest resistance; Genotypes 394 NAL Call. No.: 420 K13 Resistance to first-generation European corn borer (Lepidoptera: Pyralidae) and DIMBOA concentration in midwhorl leaves of the BS9 maize synthetic. Grombacher, A.W.; Russell, W.A.; Guthrie, W.D. Lawrence, Kan. : The Society; 1989 Jan. Journal of the Kansas Entomological Society v. 62 (1): p. 103-107; 1989 Jan. Includes references. Language: English Descriptors: Zea mays; Inbred lines; Hybrids; Pest resistance; Ostrinia nubilalis 395 NAL Call. No.: 64.8 C883 Resistance to Hessian fly from North African durum wheat germplasm. Amri, A.; Hatchett, J.H.; Cox, T.S.; Bouhssini, M.E.; Sears, R.G. Madison, Wis. : Crop Science Society of America; 1990 Mar15. Crop science v. 30 (2): p. 378-381; 1990 Mar15. Includes references. Language: English Descriptors: Tunisia; Morocco; Triticum turgidum; Triticum durum; Germplasm; Screening tests; Pest resistance; Mayetiola destructor; Biotypes; Crossing; Controlling genes; Dominant genes; Inheritance; Varietal susceptibility Abstract: The development of new virulent biotypes continuously forces entomologists and breeders to search for new sources of resistance to protect common wheat (Triticum aestivum L.) from the Hessian fly, [Mayetiola destructor (Say)]. Two hundred and seventeen durum wheats (T. turgidum L. var. durum) from Tunisia were evaluated in a greenhouse for resistance to biotypes of GP, D, and L of Hessian fly. Of these, 88, 86, and 59% were considered potential sources of resistance to biotypes GP, D, and L, respectively. Twenty-five durum wheats from Morocco also were tested for resistance to biotypes D and L, and 60% were resistant to one or both biotypes. Four resistant Moroccan durum wheats, land races Oued Zenati and BD 1026 and cultivars Jori and Hajj Mouline, were intercrossed and crossed to either or both of the susceptible checks 'Zeramek S' and 'ACSAD 65'. Results from testing F2 populations, F2:3 families, and testcross F1:2 families to biotype D showed that Oued Zenati possesses two independent dominant genes for resistance. The other land race, BD 0126, has a single dominant gene apparently allelic or closely linked to one of the genes in Oued Zenati. Resistance in Jori and Hajj Mouline is controlled by the same single dominant gene, independent of the genes in Oued Zenati and BD 0126 and of the H9 and H1O genes in the durum wheat 'Elva'. Thus, the three genes in the Morocco durum wheats appear to be different from the previously designated genes H1 through H13, based on species of origin and reactions to biotypes D and L and to populations of Hessian fly in Morocco. The identification of a large number of Hessian fly-resistant durum wheats from Tunisia and Morocco, along with the presence of three independent genes in a sample of only four durum wheats from Morocco, indicates that North African durum germplasm is a rich source of new genes for resistance to Hessian fly in the USA. 396 NAL Call. No.: QL461.I57 Resistance to insect pest damage in four cotton varieties in Ludhiana. Chakravarthy, A.K.; Sidhu, A.S. Oxford, Eng. : Pergamon Press; 1986. Insect science and its application v. 7 (5): p. 647-652; 1986. Includes references. Language: English Descriptors: Indian punjab; Gossypium arboreum; Gossypium hirsutum; Varieties; Insect pests; Pest resistance; Plant damage; Amrasca; Aphis gossypii; Earias; Pectinophora 397 NAL Call. No.: 421 J822 Resistance to leaf-feeding by the fall armyworm (Lepidoptera: Noctuidae) in tissue culture derived sorghums. Isenhour, D.J.; Duncan, R.R.; Miller, D.R.; Waskom, R.M.; Hanning, G.E.; Wiseman, B.R.; Nabors, M.W. Lanham, Md. : Entomological Society of America; 1991 Apr. Journal of economic entomology v. 84 (2): p. 680-684; 1991 Apr. Includes references. Language: English Descriptors: Sorghum bicolor; Somaclonal variation; Genotypes; Lines; Pest resistance; Screening; Susceptibility; Crop damage; Spodoptera frugiperda; Feeding preferences Abstract: Sorghum (Sorghum bicolor (L.) Moench) genotypes regenerated from tissue culture were evaluated under field and laboratory conditions for resistance to leaf-feeding by the fall armyworm, Spodoptera frugiperda (J. E. Smith). Two regenerated lines were identified as having a significantly higher level of resistance to fall armyworm feeding as compared with the non- regenerated and susceptible parent, 'Hegari'. Laboratory studies measuring growth and development of fall armyworm were conducted with meridic diets containing dried sorghum foliage from regenerated or non-regenerated plant material. Significant reductions in larval weights were detected for two R3 lines compared with the nonregenerated parent, suggesting that antibiosis may be involved. Free-choice studies revealed a significant degree of non-preference for the R3 line that had shown the greatest adverse effect on fall armyworm growth in the developmental studies. These results indicate that tissue culture-induced variations can be a viable means of generating new sources of genetic diversity for use in crop improvement. 398 NAL Call. No.: 421 J822 Resistance to Russian wheat aphid (Homoptera: Aphididae) in barley genotypes. Robinson, J.; Vivar, H.E.; Burnett, P.A.; Calhoun, D.S. Lanham, Md. : Entomological Society of America; 1991 Apr. Journal of economic entomology v. 84 (2): p. 674-679; 1991 Apr. Includes references. Language: English Descriptors: Hordeum vulgare; Genotypes; Pest resistance; Screening; Susceptibility; Diuraphis noxia; Avena sativa; Host preferences Abstract: Experiments were carried out to determine the relative levels of antibiosis, tolerance, and antixenosis in four barley (Hordeum vulgare L.) genotypes, S12 (ASE/2CM/ /B.7.6.B.B.), S13 (Gloria/Come), S16 ('Esperanza') and S17 ('Shyri') to the Russian wheat aphid, Diuraphis noxia (Mordvilko). Oats (Avena sativa L. var. 'Paramo') were used as a resistant check. From field screenings, S12 and S13 were selected as resistant to D. noxia and S16 and S17 susceptible. S12 and S13, in comparison with S16 and S17, showed high levels of antibiosis, demonstrated by low rates of nymph production on whole plants and on excised leaves. S13 showed higher tolerance than the other genotypes; mature plant height was reduced slightly by D. noxia feeding, and dry mass foliage loss per unit of aphid mass produced was relatively low. No antixenosis was demonstrated for the barley genotypes. Overall, S12 and S13 were more resistant to D. noxia in terms of antibiosis and tolerance than S16 and S17. S13 is a widely tested, high-yielding barley genotype with multiple disease resistance and represents for breeders a useful source of resistance to D. noxia in a superior genetic background. 399 NAL Call. No.: 64.8 C883 Resistance to Russian wheat apid in wild Hordeum species. Kindler, S.D.; Springer, T.L. Madison, Wis. : Crop Science Society of America; 1991 Jan. Crop science v. 31 (1): p. 94-97; 1991 Jan. Includes references. Language: English Descriptors: Ussr; Iran; Turkey; Iraq; Israel; Greece; Cyprus; German federal republic; Diuraphis noxia; Hordeum bulbosum; Hordeum; Hordeum vulgare; Hordeum jubatum; Hordeum murinum subsp. leporinum; Hordeum murinum; Wild plants; Genetic resistance; Pest resistance; Species differences; Genotypes; Germplasm; Screening; Plant introduction Abstract: The Russian wheat aphid, Diuraphis noxia (Mordvilko), is a serious pest of cultivated barley, Hordeum vulgare L., grown where the aphid is endemic. Russian wheat aphid resistance identified in several wild Hordeum spp. may provide genetic variation necessary to breed Russian wheat aphid-resistant cultivated barleys. Eighty-four accessions representing seven species and four subspecies of wild Hordeum were screened to identify resistance to the Russian wheat aphid. Resistance was measured by plant damage, aphid reproduction, and aphid survival when confined to the plant for 14 d. Thirty-six of the 84 accessions were killed in the initial screening. Of the remaining 48 accessions, the damage rating scores (1 = no injury, 9 = dead plants) ranged from 1.33 to 7.67. There were intra -and interspecific differences among accessions, with the highest levels of resistance in H. bulbosum L. and H. brevisubulatum (Trin.) Link subsp. violaceum Boiss. & Hohen. One accession of H. bogdani Wil. had an intermediate level of resistance. Several accessions of H. bulbosum and one accession of H. brevisubulatum subsp. violaceum had low damage ratings, low aphid reproduction, and low leaf- curling ratings compared with other wild Hordeum accessions and the cereal cheeks. Broadening the genetic base of cultivated barley by the introduction of resistant alien genes may provide additional protection from new virulent strains or biotypes of the Russian wheat aphid. 400 NAL Call. No.: QL461.E532 Resistance to the bird cherry-oat aphid, Rhopalosiphum padi L. (Homoptera: Aphididae), in perennial gramineae and wheat X perennial gramineae hybrids. Tremblay, C.; Cloutier, C.; Comeau, A. Lanham, Md. : Entomological Society of America; 1989 Dec. Environmental entomology v. 18 (6): p. 921-932; 1989 Dec. Includes references. Language: English Descriptors: Elymus elongatus; Elymus hispidus; Elymus repens; Elymus angustus; Triticum aestivum; Hybrids; Rhopalosiphum padi; Resistance Abstract: The potential for resistance to Rhopalosiphum padi (L.) was evaluated in seedlings of Agropyron elongatum (Host.) Beauv., Agropyron intermedium (Host.) Beauv., Agropyron repens L. Beauv., Elymus angustus Trin., and hybrids obtained from crosses between these perennial Gramineae and cultivated wheat, Triticum aestivum L. Binary choice tests designed to detect antixenosis showed that A. repens and the hybrid wheat x A. repens were less attractive than the two parental wheat varieties used to produce the hybrid (P < 0.05). Parameters of aphid performance, including reproductive rate, duration of prereproductive period, adult fresh weight, and aphid biomass, also allowed the detection of various levels of antibiosis in the four perennial grasses and hybrids tested. Results showed that natural resistance found in Agropyron and Elymus spp. can be successfully transmitted to hybrids produced from their crosses with cultivated wheat. 401 NAL Call. No.: SB599.J69 Resistance to the fall armyworm in sorghum seedlings from Ethiopia and Yemen. Wiseman, B.R.; Lovell, G.R. Clemson, S.C. : South Carolina Entomological Society; 1988 Jan. Journal of agricultural entomology v. 5 (1): p. 17-20; 1988 Jan. Includes references. Language: English Descriptors: Ethiopia; Yemen democratic republic; Sorghum bicolor; Plant collections; Resistance; Spodoptera frugiperda; Seedlings; Screening tests 402 NAL Call. No.: 421 J822 Resistance to the spotted alfalfa aphid (Homoptera: Aphididae) in simple-haired alfalfa plant introductions. Carter, M.R.; Manglitz, G.R.; Sorensen, E.L. Lanham, Md. : Entomological Society of America; 1988 Dec. Journal of economic entomology v. 81 (6): p. 1760-1764; 1988 Dec. Includes references. Language: English Descriptors: Medicago sativa; Cultivars; Plant hairs; Pest resistance; Therioaphis; Fecundity 403 NAL Call. No.: aS21.A8U5/ARS Resistance to two aphid species in alfalfa introductions. Manglitz, G.R.; Carter, M.R. Washington, D.C. : The Service; 1988. Reprints - U.S. Department of Agriculture, Agricultural Research Service [239]: p. 36; 1988. Includes references. Language: English Descriptors: Nebraska; Medicago sativa; Plant introduction; Pest resistance; Acyrthosiphon pisum; Therioaphis 404 NAL Call. No.: SB599.C8 Resistance to whitefly (Bemisia tabaci) in cotton (Gossypium hirsutum) in the Sudan. Sippell, D.W.; Bindra, O.S.; Khalifa, H. Guildford, Eng. : Butterworths; 1987 Jun. Crop protection v. 6 (3): p. 171-178; 1987 Jun. Includes references. Language: English Descriptors: Sudan; Gossypium hirsutum; Breeding programs; Resistance; Bemisia tabaci; Leaves; Morphology; Correlated traits 405 NAL Call. No.: 64.8 C883 Resistance-susceptibility of maize genotypes to artificial infestations by twospotted spider mites. Kamali, K.; Dicke, F.F.; Guthrie, W.D. Madison, Wis. : Crop Science Society of America; 1989 Jul. Crop science v. 29 (4): p. 936-938. ill; 1989 Jul. Includes references. Language: English Descriptors: Zea mays; Inbred lines; Genotypes; Pest resistance; Tetranychus urticae; Screening tests; Susceptibility; Rating scales; Plant damage; Population density Abstract: Twospotted spider mites, Tetranychus urticae K., are pests of maize, Zea mays L., in some areas of the USA. Resistant genotypes are needed to reduce plant damage caused by this pest. Two laboratory and three field experiments were conducted in 1986 to determine the resistance-susceptibility of maize genotypes to an artificial infestation by the twospotted spider mite. Inbred line 41:2504B was highly resistant to the twospotted spider mite in both laboratory and field tests. This inbred exhibited a high degree of antibiosis against the mite; few mites survived, and little leaf damage resulted from the artificial infestation. This inbred also is highly resistant to the European corn borer, Ostrinia nubilalis Hubner, and has been used as a nonrecurrent parent to develop several genotypes of maize resistant to this pest. Our data show that 41:2504B also could be used to develop genotypes of maize resistant to twospotted spider mites. Nine other genotypes had intermediate or susceptible reactions to twospotted spider mites, with Mo17 being the most susceptible. 406 NAL Call. No.: 421 J822 Response of nectariless cotton genotypes to cotton fleahopper (Heteroptera: Miridae) infestation. Lidell, M.C.; Niles, G.A.; Walker, J.K. College Park, Md. : Entomological Society of America; 1986 Oct. Journal of economic entomology v. 79 (5): p. 1372-1376; 1986 Oct. Includes references. Language: English Descriptors: Texas; Gossypium hirsutum; Genotypes; Psallus seriatus; Pest resistance; Lines; Cultivars; Nectar; Population density; Yield losses 407 NAL Call. No.: 421 J822 Response of two maize synthetics to recurrent selection for resistance to first-generation European corn borer (Lepidoptera: Pyralidae) and Diplodia stalk rot. Nyhus, K.A.; Russell, W.A.; Guthrie, W.D. Lanham, Md. : Entomological Society of America; 1988 Dec. Journal of economic entomology v. 81 (6): p. 1792-1798; 1988 Dec. Includes statistical data. Includes references. Language: English Descriptors: Zea mays; Crosses; Ostrinia nubilalis; Pest resistance; Recurrent selection; Diplodia maydis; Disease resistance; Statistical analysis 408 NAL Call. No.: 420 IN23 Response of varieties to insecticidal treatment against major insect pests in cotton. Agarwal, R.A.; Gupta, G.P.; Katiyar, K.N. New Delhi : Entomological Society of India; 1983 Dec. Indian journal of entomology v. 45 (pt.4): p. 338-341; 1983 Dec. Language: English Descriptors: Delhi; Gossypium; Varieties; Pest resistance; Heliothis; Hemiptera; Insect pests; Monocrotophos; Spraying 409 NAL Call. No.: QL461.I57 Responses of Chilo partellus to material obtained from susceptible and resistant maize cultivars: electrophysiology and behaviour. Waladde, S.M.; Kahaoro, H.M.; Dokwaro, E.; Chimtawi, M. Oxford, Eng. : Pergamon Press; 1985. Insect science and its application v. 6 (3): p. 341-347. ill; 1985. Includes references. Language: English Descriptors: Zea mays; Chilo partellus; Pest resistance; Susceptibility; Genotypes; Stimulation 410 NAL Call. No.: 421 EN895 The responses of the spotted alfalfa aphid to variation between plants of an aphid-resistant lucerne cultivar. Hughes, R.D.; Hughes, M.A. Dordrecht : Dr W. Junk Publishers; 1987 Jul. Entomologia experimentalis et applicata v. 44 (2): p. 177-185; 1987 Jul. Includes references. Language: English Descriptors: U.S.A.; Medicago sativa; Bioassays; Cultivars; Pest resistance; Therioaphis trifolii; Varieties 411 NAL Call. No.: SB192.A33E17 1974 Review of sorghum improvement and production in Uganda. Kwaje, S.L. Zomba, Malawi : Govt. Printer, [1974?]; 1974. Proceedings of the Fifth Eastern African Cereals Research Conference / edited by D. R. B. Manda. p. 208-218; 1974. Includes references. Language: English Descriptors: Uganda; Sorghum; Plant breeding; Breeding programs; Breeding aims; Pest resistance; Disease resistance; Crop yield 412 NAL Call. No.: SB931.E57 Rice insect pests and agricultural change. Loevinsohn, M.A.; Litsinger, J.A.; Heinrichs, E.A. Boulder : Westview Press; 1988. The Entomology of indigenous and naturalized sysems in agriculture / edited by Marvin K. Harris and Charles E. Rogers. p. 161-182. maps; 1988. (Westview studies in insect biology). Includes references. Language: English Descriptors: Oryza; Oryza sativa; Varieties; Wild plants; Crop loss; Insect pests; Light traps; Pest resistance; Screening 413 NAL Call. No.: 100 AR42F The role genetic engineering crop pest control. Stewart, J.M. Fayetteville, Ark. : The Station; 1990 May. Arkansas farm research - Arkansas Agricultural Experiment Station v. 39 (3): p. 10. ill; 1990 May. Language: English Descriptors: Gossypium; Genetic engineering; Plant breeding; Breeding aims; Resistance; Insect pests 414 NAL Call. No.: 442.8 AN72 The role of awns in the resistance of cereals to the grain aphid, Sitobion avenae. Acreman, T.M.; Dixon, A.F.G. Warwick : Association of Applied Biologists; 1986 Oct. Annals of applied biology v. 109 (2): p. 375-381; 1986 Oct. Includes references. Language: English Descriptors: Cereals; Awns; Resistance; Sitobion avenae; Genotypes 415 NAL Call. No.: QL1.I48 Role of chemical components of resistant and susceptible genotypes of cotton and okra in ovipositional preference of cotton leafhopper. Singh, R.; Agarwal, R.A. Bangalore : The Academy; 1988 Nov. Proceedings : Animal sciences - Indian Academy of Sciences v. 97 (6): p. 545-550; 1988 Nov. Includes references. Language: English Descriptors: India; Gossypium hirsutum; Hibiscus abelmoschus; Amrasca; Oviposition; Chemical constituents of plants; Nutritional intervention; Genotypes; Variety trials; Pest resistance; Susceptibility 416 NAL Call. No.: 421 B87 The role of host plant resistance in insect pest mis-management. Van Emden, H.F. London : Commonwealth Agricultural Bureaux International; 1991 Jun. Bulletin of entomological research v. 81 (2): p. 123-126; 1991 Jun. Includes references. Language: English Descriptors: Crops; Insect pests; Interactions; Pest management; Pest resistance; Problem analysis; Transgenics; Varietal resistance; Yield losses 417 NAL Call. No.: 450 C16 Russian wheat aphid (Diuraphis noxia) resistance in wheat and related species. Nkongolo, K.K.; Quick, J.S.; Limin, A.E.; Fowler, D.B.; Peairs, F.B.; Meyer, W.L. Ottawa : Agricultural Institute of Canada; 1990 Jul. Canadian journal of plant science; Revue canadienne de phytotechnie v. 70 (3): p. 691-698; 1990 Jul. Includes references. Language: English Descriptors: Triticum; Triticum turgidum; Triticum aestivum; Hemiptera; Insect pests; Plant breeding; Pest resistance; Cultivars; Genetic analysis; Gene expression; Hybrids; Hexaploids; Geographical races; Interspecific hybridization 418 NAL Call. No.: SB945.A5R8 1987 Russian wheat aphid plant resistance research in Oklahoma. Webster, J.A.; Merkle, O.G.; Burton, R.L. Stillwater, Okla. : Cooperative Ext Service, Div of Agriculture, Oklahoma State Univ, [1987?]; 1987. Proceedings of the first Russian Wheat Aphid Conference, September 23, 1987, Guymon, Oklahoma / edited by Stan Coppock and Bill Massey. p. 46-47; 1987. Includes references. Language: English Descriptors: Oklahoma; Insect pests; Hemiptera; Cereals; Breeding aims; Resistance 419 NAL Call. No.: SB608.M2I57 1987 Screening and breeding maize for resistance to Sesamia calamistis and Eldana saccharina. Bosque-Perez, N.A.; Mareck, J.H.; Dabrowski, Z.T.; Everett, L.; Kim, S.K.; Efron, Y. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 163-169; 1987. Includes references. Language: English Descriptors: Nigeria; Zea mays; Breeding programs; Screening; Techniques; Resistance; Sesamia calamistis; Eldana saccharina; Genetic resources; Identification 420 NAL Call. No.: SB599.J69 Screening cereal cultivars for resistance to early-instar grasshoppers. Hinks, C.F.; Olfert, O.O.; Westcott, N.D. Clemson, S.C. : South Carolina Entomological Society; 1987 Oct. Journal of agricultural entomology v. 4 (4): p. 315-319; 1987 Oct. Includes references. Language: English Descriptors: Triticum; Avena sativa; Hordeum vulgare; Secale cereale; Cultivars; Screening; Resistance; Melanoplus sanguinipes 421 NAL Call. No.: 64.8 C883 Screening for resistance to Russian wheat aphid in triticale. Scott, R.A.; Worrall, W.D.; Frank, W.A. Madison, Wis. : Crop Science Society of America; 1991 Jan. Crop science v. 31 (1): p. 32-36; 1991 Jan. Includes references. Language: English Descriptors: Diuraphis noxia; Triticale; Genetic resistance; Antibiosis; Lines; Screening; Tolerance; Feeding preferences Abstract: Resistance to Russian wheat aphid (Diuraphis noxia Mordvilko) (RWA) remains scarce in hexaploid wheat (Triticum aestivum L. em. Thell.) and has been identified only in unadapted wheats. Introduction of resistance from related species is a viable alternative. A greenhouse study was conducted to identify possible sources of resistance to RWA, and to examine RWA screening techniques. After screening 133 triticale (X Triticosecale Wittmack) lines in replicated flat screening tests, 11 resistant lines were identified and evaluated along with 3 susceptible lines and 1 susceptible wheat for antibiosis, antixenosis, and tolerance. In preliminary screening trials, correlations of 0.50 (P less than or equal to 0.05) to 0.58 (P less than or equal to 0.01) were found between plant damage ratings and plant heights. Plant damage ratings and antibiosis values also were correlated (r = 0.55, P less than or equal to 0.05). Antixenosis time periods of 24, 48, and 72 h were compared. There were significant differences between resistant and susceptible lines for antibiosis and tolerance, but not for antixenosis. Number of nymphs per adult ranged from 0 to 9 in antibiosis tests. Plant stunting ranged from 0 to 16.5 cm among resistant tines and from 8 to 21.5 an among susceptible lines in tolerance tests. Correlations among all three antixenosis evaluation times were significant. We concluded that excellent sources of RWA resistance exist in triticale, and that resistance is expressed primarily as antibiosis and tolerance. 422 NAL Call. No.: 421 J822 Screening for sorghum line and hybrid resistance to chinch bug (Hemiptera: Lygaeidae) in the greenhouse and growth chamber. Meehan, M.; Wilde, G. Lanham, Md. : Entomological Society of America; 1989 Apr. Journal of economic entomology v. 82 (2): p. 616-620; 1989 Apr. Includes references. Language: English Descriptors: Sorghum bicolor; Hybrids; Lines; Mortality; Pest resistance; Screening; Blissus leucopterus; Greenhouse experimentation; Growth chambers Abstract: To test methods to screen for resistance, commercial sorghum hybrids and lines were subjected to nymphs and adults of the chinch bug, Blissus leucopterus leucopterus (Say), at the seedling stage in the greenhouse. A hybrid or line that had significantly higher plant mortality in a choice feeding test did not always show the same reaction in a no-choice test. 'KS 71' died in fewer days than 'KS 72' or 'BCK 60' in choice feeding tests, but the three hybrids did not differ in no-choice tests. Hybrids and lines tested in no-choice multiple-plant experiments tended to react to chinch bugs in a manner similar to previously reported field tests. Screening methods in the greenhouse were also compared with those in the growth chamber. Generally, days from infestation to plant death of chinch bug-infested sorghum hybrids or lines did not differ significantly in a greenhouse or growth chamber. Five of 29 hybrid and line comparisons differed significantly from others in the growth chamber and not in the greenhouse, or vice versa. Differences did not tend to occur in one environment and not in the other. Days from investation to plant death of lines and hybrids, in greenhouse versus growth chamber tests agreed with those obtained in field tests. All lines and hybrids were eventually killed by the high chinch bug populations used in the experiments. Greenhouse or growth chamber experiments are equally effective to test for resistance. 423 NAL Call. No.: QL461.I57 Screening maize genotypes for multiple resistance to stem-borers. Omolo, E.O.; Reddy, K.V.S. Oxford, Eng. : Pergamon Press; 1985. Insect science and its application v. 6 (3): p. 405-408; 1985. Includes references. Language: English Descriptors: Zea mays; Chilo partellus; Eldana saccharina; Sesamia calamistis; Pest resistance; Genotypes; Screening tests 424 NAL Call. No.: SB608.M2I57 1987 Screening methodologies for maize resistance to Chilo partellus (Lepidoptera: Pyralidae). Ampofo, J.K.O.; Saxena, K.N. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 170-177. ill., maps; 1987. Includes references. Language: English Descriptors: Zea mays; Breeding programs; Screening; Techniques; Resistance; Chilo partellus; Biology; Behavior; Plants; Damage; Developmental stages; Evaluation 425 NAL Call. No.: aSB205.S7S6 Screening of some soybean varieties for resistance to whitefly (Bemisia tabaci Genn.). Arioglu, H.H. Ames, Iowa : The Service; 1987 Apr. Soybean genetics newsletter - United States, Agricultural Research Service v. 14: p. 136-139; 1987 Apr. Includes references. Language: English Descriptors: Turkey; Glycine max; Varieties; Resistance; Insect pests; Bemisia tabaci; Screening tests 426 NAL Call. No.: 64.8 C883 Screening soybean genotypes in the greenhouse for resistance to insects. All, J.N.; Boerma, H.R.; Todd, J.W. Madison, Wis. : Crop Science Society of America; 1989 Sep. Crop science v. 29 (5): p. 1156-1159; 1989 Sep. Includes references. Language: English Descriptors: Glycine max; Genotypes; Pest resistance; Screening tests; Heliothis zea; Heliothis virescens; Pseudoplusia includens; Anticarsia gemmatalis; Plathypena scabra; Spodoptera exigua; Spodoptera frugiperda; Defoliation; Greenhouse experimentation Abstract: Insect resistance in soybean, Glycine max (L.) Merr., cultivars would reduce the use of chemical insecticides, resulting in less risk to the environment and increased grower profits. The objectives of this research were to develop an effective greenhouse screening procedure to identify soybean genotypes with resistance to defoliating insects and provide information on the number of replications required to obtain desired levels of precision for the procedure. Neonate larvae were placed on 12- to 16-d-old potted plants. Insects had free choice among plants for 14 d within replicates, but larval movement away from a replicate was prevented by maintaining the potted plants in stainless steel pans containing 2 cm of water. Replicate blocks were separated so that leaves did not intermingle. Several hundred soybean genotypes were evaluated at one time. Defoliation of test plants by the corn earworm, Heliothis zea (Boddie), in the greenhouse screening system correlated (r = 0.60; P less than 0.01) to insect defoliation of soybean plants in field nurseries. The ranking of the genotypes based on defoliation by the corn earworm; tobacco budworm, H. virescens (Fabricius); soybean looper, Pseudoplusia includens (Walker); velvetbean caterpillar, Anticarsia gemmatalis Hubner, green cloverworm, Plathypena scabra (Fabricius); beet armyworm, Spodoptera exigua (Hubner); and fall armyworm, S. frugiperda (J.E. Smith), was similar in greenhouse tests. For example, feeding by all insect species was inbibited by Plant Introduction 229358 and GatIR81-296, genotypes with known multiple insect resistance. Of seven insect species tested, the corn earworm was the easiest to work with in the greenhouse screening program and required fewer replications than most other species to demonstrate stipulated levels of resistance. For example, a difference of 40% in the overall mean of the experiment between two genotypes required seven replicates with corn earworm and 18 replicates with soybean loope 427 NAL Call. No.: QL483.I4J6 Search of sources for resistance amongst newly developed early and medium maturing maize composites subjected to manual infestation of the stalk borer, Chilo partellus (Swinehoe). Siddiqui, K.H.; Marwaha, K.K.; Sarup, P.; Prakash Singh, J. New Delhi : Malhotra Publishing House; 1986 Dec. Journal of entomological research v. 10 (2): p. 155-160. ill; 1986 Dec. Includes references. Language: English Descriptors: India; Zea mays; Chilo partellus; Pest resistance; Germplasm 428 NAL Call. No.: 421 C16 Seasonal occurrence of the pea aphid, Acyrthosiphon pisum (Harris) (Homoptera: Aphididae), on cultivars of field peas in Manitoba and its effects on pea growth and yield. Soroka, J.J.; Mackay, P.A. Ottawa : Entomological Society of Canada; 1990 May. The Canadian entomologist v. 122 (5/6): p. 503-513; 1990 May. Includes references. Language: English Descriptors: Manitoba; Pisum sativum; Cultivars; Pest resistance; Acyrthosiphon pisum; Population density; Seed weight; Yield components 429 NAL Call. No.: QL483.I4J6 Selection for the shoot fly, Atherigona soccata Rondani resistance in high yielding varieties of sorghum. Kishore, P.; Rana, B.S.; Agarwal, K.N. New Delhi : Malhotra Publishing House; 1985 Dec. Journal of entomological research v. 9 (2): p. 188-194; 1985 Dec. Includes references. Language: English Descriptors: Sorghum bicolor; Atherigona soccata; Pest resistance; Plant breeding; Selection; High yielding varieties 430 NAL Call. No.: SB299.S9A1 Selection in sunflowers for resistance to rutherglen bug (Nysius vinitor). Downes, R.W.; Tonnet, M.L. Memphis, Tenn. : International Sunflower Congress; 1982 Mar14. Proceedings of the ... International Sunflower Conference. p. 261-264; 1982 Mar14. Paper presented at the "10th International Sunflower Conference," March 14-18, 1982, Surfers Paradise, Australia. Includes 13 references. Language: English Descriptors: Australia; Helianthus annuus; Hybridization; Breeding aims; Pest resistance; Nysius vinitor; Elites; Germination; Oils; Composition 431 NAL Call. No.: QK1.N434 Selection of sorghum cultivars for stem borer resistance and stability of grain yield. Kishore, P.; Solomon, S.; Govil, J.N. New Delhi : Today & Tomorrow's Printers & Publishers; 1988 Apr. New botanist v. 15 (2/3): p. 107-112; 1988 Apr. Includes references. Language: English Descriptors: Sorghum bicolor; Chilo partellus; Cultivars; Plant pests; Insect pests; Pest resistance; Plant breeding; Selection; Crop yield 432 NAL Call. No.: 64.8 C883 Selection-induced differences among strains of Iowa stiff stalk synthetic maize. Oyervides-Garcia, M.; Hallauer, A.R. Madison, Wis. : Crop Science Society of America; 1986 May. Crop science v. 26 (3): p. 506-511; 1986 May. Includes references. Language: English Descriptors: Zea mays; Synthetic varieties; Recurrent selection; Selection methods; Pest resistance; Yield increases; Genetic differences; Diallel crossing 433 NAL Call. No.: 60.9 AL2 Self- and cross-fertility in alfalfa populations before and after selection for pest resistance. Rodriguez, J.A.; Kehr, W.R. s.l. : U.S. Department of Agriculture, Agricultural Research Service; 1981 May. Report of the Alfalfa Improvement Conference (27th): p. 60; 1981 May. Meeting held July 8-10, 1980, Madison, Wisconsin. Includes abstract. Language: English Descriptors: Medicago sativa; Pest resistance; Selection criteria; Selfing; Crossing 434 NAL Call. No.: SB351.S25E93 1984 Similarities in partial resistance of lettuce to Bremia lactucae and leaf aphids. Eenink, A.H. Versailles : INRA; 1985. Colloque Eucarpia sur les legumes a feuilles : Versailles, 28-29 fevrier, ler-2 mars 1984 : communications; Eucarpia Meeting on Leafy Vegetables : Versailles, 1984 : proceedings. p. 75-86; 1985. Paper presented at the "Eucarpia Meeting on Leafy Vegetables," February 28-March 2, 1984, Versailles, France. Includes references. Language: English Descriptors: Lactuca sativa; Bremia lactucae; Disease resistance; Pest resistance; Nasonovia ribisnigri; Myzus persicae; Macrosiphum euphorbiae; Genotypes; Varietal effects; Inheritance 435 NAL Call. No.: QL461.E532 Simulation models for predicting durability of insect-resistant germ plasm: Hessian fly (Diptera: Cecidomyiidae)-resistant winter wheat. Gould, F. College Park, Md. : Entomological Society of America; 1986 Feb. Environmental entomology v. 15 (1): p. 11-23; 1986 Feb. Includes references. Language: English Descriptors: Triticum aestivum; Mayetiola destructor; Germplasm; Pest resistance; Adaptation; Simulation models; Cultivars; Biotypes 436 NAL Call. No.: S601.A34 Simulations of bird cherry-oat aphid population dynamics: a tool for developing strategies for breeding aphid-resistant plants. Wiktelius, S.; Pettersson, J. Amsterdam : Elsevier; 1985 Dec. Agriculture ecosystems & environment v. 14 (3/4): p. 159-170. ill; 1985 Dec. Includes references. Language: English Descriptors: Sweden; Prunus padus; Cereals; Rhopalosiphum padi; Pest control; Biological control; Plant breeding; Pest resistance; Hosts of plant diseases; Simulation models; Population dynamics 437 NAL Call. No.: 421 J822 Smoothleaf and hirsute cottons: response to insect pests and yield in Arizona. Wilson, F.D.; George, B.W. College Park, Md. : Entomological Society of America; 1986 Feb. Journal of economic entomology v. 79 (1): p. 229-232; 1986 Feb. Includes references. Language: English Descriptors: Arizona; Gossypium hirsutum; Cultivars; Insect pests; Pest resistance; Crop damage; Crop yield 438 NAL Call. No.: SB192.A33E17 1974 Sorghum and its resistance to insects. Barry, D. Zomba, Malawi : Govt. Printer, [1974?]; 1974. Proceedings of the Fifth Eastern African Cereals Research Conference / edited by D. R. B. Manda. p. 238-240; 1974. Language: English Descriptors: Nigeria; Sorghum; Plant breeding; Breeding aims; Resistance; Insect pests 439 NAL Call. No.: 421 J822 Sorghum midge (Diptera: Cecidomyiidae) adult ovipositional behavior on resistant and susceptible sorghum hybrids. Waquil, J.M.; Teetes, G.L.; Peterson, G.C. College Park, Md. : Entomological Society of America; 1986 Apr. Journal of economic entomology v. 79 (2): p. 530-532; 1986 Apr. Includes references. Language: English Descriptors: Texas; Sorghum bicolor; Hybrids; Pest resistance; Susceptibility; Contarinia sorghicola; Oviposition; Field experimentation 440 NAL Call. No.: SB123.A88 1988 Sorghum midge resistance breeding in Queensland. Henzell, R.G.; Brengman, R.L. Wagga Wagga, N.S.W., Australia : Organising Committee, Agricultural Research Institute, 1988? :.; 1988. Ninth Australian Plant Breeding Conference, Wagga Wagga, 27th June-1st July, 1988 / [edited by K.S. McWhirter, R.W. Downes, B.J. Read]. p. 225-226; 1988. Language: English Descriptors: Queensland; Sorghum; Pest resistance; Contarinia sorghicola; Breeding aims 441 NAL Call. No.: 420 IN23 Sorghum species resistant to shootfly. Mote, U.N. New Delhi : Entomological Society of India; 1984 Jun. Indian journal of entomology v. 46 (pt. 2): p. 241-243; 1984 Jun. Includes references. Language: English Descriptors: India; Sorghum; High yielding varieties; Hybrids; Atherigona soccata; Carbofuran; Chemical control; Incidence; Pest resistance 442 NAL Call. No.: 450 C16 Sources and inheritance of resistance to Russian wheat aphid in Triticum species amphiploids and Triticum tauschii. Nkongolo, K.K.; Quick, J.S.; Limin, A.E.; Fowler, D.B. Ottawa : Agricultural Institute of Canada; 1991 Jul. Canadian journal of plant science; Revue canadienne de phytotechnie v. 71 (3): p. 703-708; 1991 Jul. Includes references. Language: English Descriptors: Triticum aestivum; Triticum turgidum; Triticum; Genotypes; Diuraphis noxia; Plant pests; Pest resistance; Genetic resistance; Inheritance; Plant breeding 443 NAL Call. No.: 64.8 C883 Soybean cultivar resistance to defoliating insects. Rowan, G.B.; Boerma, H.R.; All, J.N.; Todd, J. Madison, Wis. : Crop Science Society of America; 1991 May. Crop science v. 31 (3): p. 678-682; 1991 May. Includes references. Language: English Descriptors: Georgia; Glycine max; Cultivars; Pest resistance; Helicoverpa zea; Chrysodeixis includens; Anticarsia gemmatalis; Spodoptera exigua; Genotypes; Maturity groups; Screening; Genetic resistance; Varietal susceptibility Abstract: Utilization of soybean, Glycine max (L). Merr., cultivars with moderate levels of insect resistance can increase grower profits by reducing the use of insecticides and reduce the risk of insecticidal residues in the human food chain. Research was conducted to determine soybean cultivar variation for resistance to defoliation by corn earworm (CEW), Heliothis zea (Boddie); soybean looper (SBL), Pseudoplusia includens (Walker); velvetbean caterpillar (VBC), Anticarsia gemmatalis (Hubner); and beet armyworm (BAW), Spodoptera exigua (Hubner). Fifty-six Maturity Group (MG) V, VI, VII, and VIII genotypes, consisting of 46 cultivars and 10 insect-resistant checks, were evaluated in the greenhouse and field. Greenhouse experiments were conducted by infesting 14-d-old plants with neonate larvae of CEW, SBL, or VBC. Amount of defoliation was visually determined 14 d after infestation. Field experiments were conducted at Athens, CA, by infesting plants in a cage with eggs or neonate larvae of CEW and at Midville, GA, with natural populations of BAW. Two visual estimates of amount of defoliation were made st Athens and three at Midville. There were no differences for levels of defoliation among the cultivars in MG V. There were significant (P < 0.05) differences among the cultivars in MG VI, VII, and VIII. 'Coker 686' and 'Deltapine 566' (MG VI), 'Braxton' (MG VII), and 'Coker 6738' (MG VIII) were the most resistant to defoliating insects in the greenhouse and field. These cultivars showed 50% of the resistance of insect-resistant checks. Partial correlation coefficients, after removing the effect of maturity, indicated the mean greenhouse ratings of the 56 genotypes were positively associated with the Athens field cage (r = 0.72 ) and Midville field (r = 0.72 ) ratings (significant at P = 0.01). 444 NAL Call. No.: 421 J822 Stability of resistance in sorghum to Calocoris angustatus (Hemiptera: Miridae). Sharma, H.C.; Lopez, V.F. Lanham, Md. : Entomological Society of America; 1991 Jun. Journal of economic entomology v. 84 (3): p. 1088-1094; 1991 Jun. Includes references. Language: English Descriptors: Sorghum bicolor; Crop damage; Crop losses; Cultivars; Genotypes; Pest resistance; Stability; Calocoris angustatus; Population growth; Seed germination Abstract: Eight sorghum genotypes were evaluated for resistance to Calocoris angustatus Lethiery (Hemiptera: Miridae) at three infestation levels (5, 10, and 15 pairs of adult bugs per panicle) over six seasons (1984-1987) under no-choice conditions in the head cage. 'IS 17610', and 'IS 17645' had significantly lower bug population increase as compared with the susceptible controls 'CSH 1', 'CSH 5,' and 'CSH 9'. These genotypes also suffered less grain damage and percentage loss in grain mass and showed higher seed germination than the susceptible controls. 'IS 2761' and 'IS 9692' generally had lower bug numbers, but suffered higher grain damage. Descriptors: Gossypium hirsutum; Cultivars; Pest resistance; Integrated pest management; Anthonomus grandis; Heliothis virescens; Pectinophora gossypiella; Meloidogyne incognita; Disease resistance 447 NAL Call. No.: SB608.M2I57 1987 The status of maize insect pests and the role of host plant resistance in Thailand. Jamornmarn, S. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 275-276; 1987. Includes references. Language: English Descriptors: Thailand; Zea mays; Insect pests; Hosts of plant pests; Resistance; Crop damage; Insect control; Control methods; Varietal resistance 448 NAL Call. No.: SB191.R5U64 1982 Stem borer incidence in rice exosystems in Kenya, East Africa. Ho, D.T. Los Banos, Philippines : International Rice Research Institute; 1984. An overview of upland rice research : proceedings of the 1982 Bouake, Ivory Coast, Upland Rice Workshop. p. 307-320; 1984. Includes references. Language: English Descriptors: Kenya; Oryza sativa; Stems; Varieties; Pest resistance; Boring insects; Diptera; Chilo partellus; Lepidoptera; Sesamia calamistis; Incidence; Population dynamics; Yield losses 449 NAL Call. No.: 421 J822 Stibadium spumosum (Lepidoptera: Noctuidae): a potential pest of sunflower in Arkansas. Burleigh, J.G.; Katayama, R.W.; Posey, A.F.; Porter, O.A. College Park, Md. : Entomological Society of America; 1988 Apr. Journal of economic entomology v. 81 (2): p. 527-530; 1988 Apr. Includes references. Language: English Descriptors: Arkansas; Helianthus annuus; Varieties; Pest resistance; Lepidoptera; Larvae 450 NAL Call. No.: 421 J822 Sticky-tape method to measure cultivar effect on wheat curl mite (Acari: Eriophyidae) populations in wheat spikes. Harvey, T.L.; Martin, T.J. College Park, Md. : Entomological Society of America; 1988 Apr. Journal of economic entomology v. 81 (2): p. 731-734. ill; 1988 Apr. Includes references. Language: English Descriptors: Kansas; Triticum; Cultivars; Pest resistance; Spikes; Eriophyes; Disease vectors; Mosaic 451 NAL Call. No.: SB608.M2I57 1987 Studies of a bioassay technique for resistance evaluation of maize to the Asian corn borer, Ostrinia furnacalis. Darong, Z.; Caiceng, C. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 295; 1987. Language: English Descriptors: China; Zea mays; Bioassays; Techniques; Resistance; Ostrinia furnacalis; Evaluation 452 NAL Call. No.: SB950.A1P3 Studies of loss estimation and relative susceptibility of genotypes of sorghum to earhead caterpillar (Heliothis armigera Huebner). Mote, U.N.; Murthy, D.K. London : Taylor & Francis; 1990 Apr. Tropical pest management v. 36 (2): p. 108-113; 1990 Apr. Includes references. Language: English Descriptors: Sorghum bicolor; Genotypes; Hybrids; Varieties; Pest resistance; Varietal susceptibility; Heliothis armigera; Crop yield; Yield losses; Grain; Crop growth stage; Insecticide application; Hch; Insecticides; Insect control 453 NAL Call. No.: QL461.I57 Studies on the mechanism of resistance in sorghum accessions to the grain midge, Contarinia sorghicola Coquillet. Natarajan, K.; Chelliah, S. Oxford, Eng. : Pergamon Press; 1986. Insect science and its application v. 7 (6): p. 751-755; 1986. Includes references. Language: English Descriptors: Tamil nadu; Sorghum bicolor; Cultivars; Contarinia sorghicola; Pest resistance; Screening; Plant damage; Oviposition; Emergence; Development 454 NAL Call. No.: SB950.A1P3 Suitability of maize varieties for the oviposition and development of Plodia interpunctella (Hubner) (Lepidoptera: Pyralidae). Mbata, G.N. London : Taylor & Francis; 1990 Apr. Tropical pest management v. 36 (2): p. 122-127; 1990 Apr. Includes references. Language: English Descriptors: Zea mays; Hybrid varieties; Varietal susceptibility; Plodia interpunctella; Oviposition; Host specificity; Laboratory rearing; Pest resistance; Yield losses; Kernels 455 NAL Call. No.: QL461.E532 Sunflower (Helianthus) resistance to a stem weevil, Cylindrocopturus adspersus (Coleoptera: Curculionidae). Rogers, C.E.; Seiler, G.J. College Park, Md. : Entomological Society of America; 1985 Oct. Environmental entomology v. 14 (5): p. 624-628; 1985 Oct. Includes references. Language: English Descriptors: Helianthus annuus; Species; Pest resistance; Coleoptera 456 NAL Call. No.: 421 J822 Survival, growth, and development of southwestern corn borer (Lepidoptera: Pyralidae) on resistant and susceptible maize hybrids. Davis, F.M.; Williams, W.P. College Park, Md. : Entomological Society of America; 1986 Jun. Journal of economic entomology v. 79 (3): p. 847-850; 1986 Jun. Includes references. Language: English Descriptors: Mississippi; Zea mays; Hybrids; Diatraea grandiosella; Pest resistance; Survival; Growth; Development 457 NAL Call. No.: 421 J822 Survival, growth, and reproduction of the fall armyworm (Lepidoptera: Noctuidae) as affected by resistant corn genotypes. Ng, S.S.; Davis, F.M.; Williams, W.P. College Park, Md. : Entomological Society of America; 1985 Aug. Journal of economic entomology v. 78 (4): p. 967-971. ill; 1985 Aug. Includes references. Language: English Descriptors: Zea mays; Genotypes; Pest resistance; Spodoptera frugiperda; Survival; Growth; Reproduction 458 NAL Call. No.: SB599.C8 Survivorship of the cassava whiteflies Aleurotrachelus socialis and Trialeurodes variabilis (Homoptera: Aleyrodidae) under different cropping systems in Colombia. Gold, C.S.; Altieri, M.A.; Bellotti, A.C. Guildford : Butterworths; 1991 Aug. Crop protection v. 10 (4): p. 305-309; 1991 Aug. Includes references. Language: English Descriptors: Colombia; Manihot esculenta; Vigna unguiculata; Zea mays; Monoculture; Intercropping; Cultivars; Varietal susceptibility; Pest resistance; Aleyrodidae; Trialeurodes; Developmental stages; Survival; Population dynamics; Natural enemies; Parasites of insect pests; Predators of insect pests 459 NAL Call. No.: 421 J822 Susceptibility of early season cotton floral bud types to thrips (Thysanoptera: Thripidae) damage. Terry, L.I.; Barstow, B.B. Lanham, Md. : Entomological Society of America; 1988 Dec. Journal of economic entomology v. 81 (6): p. 1785-1791; 1988 Dec. Includes references. Language: English Descriptors: Arizona; Gossypium hirsutum; Cultivars; Frankliniella; Incidence; Pest resistance; Susceptibility 460 NAL Call. No.: QL461.E532 Susceptibility of 'largo' wheat to biotype B greenbug (Homoptera: Aphididae). Webster, J.A.; Inayatullah, C.; Merkle, O.G. College Park, Md. : Entomological Society of America; 1986 Jun. Environmental entomology v. 15 (3): p. 700-702; 1986 Jun. Includes references. Language: English Descriptors: Triticum turgidum; Crosses; Schizaphis graminum; Biotypes; Susceptibility; Pest resistance 461 NAL Call. No.: 421 C16 Susceptibility of low- and high-glucosinolate oilseed rapes to damage by flea beetles, Phyllotreta spp. (Coleoptera: Chrysomelidae). Lamb, R.J. Ottawa : Entomological Society of Canada; 1988 Feb. The Canadian entomologist v. 120 (2): p. 195-196; 1988 Feb. Includes references. Language: English Descriptors: Brassica campestris; Brassica napus; Glucosinolates; Cultivars; Crop damage; Phyllotreta; Phyllotreta cruciferae; Pest resistance 462 NAL Call. No.: SB950.A1P3 Susceptibility of varieties of sorghum (Sorghum bicolor Moench.) grain to different geographical strains of Sitophilus oryzae L. Holloway, G.J. London : Taylor & Francis; 1988 Oct. Tropical pest management v. 34 (4): p. 423-425, 468, 471; 1988 Oct. Includes references. Language: English Descriptors: Sorghum bicolor; Varieties; Sitophilus oryzae; Plant pests; Pest resistance; Plant breeding; Insect control; Biological control; Geographical races; Susceptibility 463 NAL Call. No.: S51.E2 Susceptibility of winter wheat and triticale to the Hessian fly. Buntin, G.D.; Raymer, P.L. Athens, Ga. : The Stations; 1989 Dec. Research bulletin - University of Georgia, Agricultural Experiment Stations (389): 12 p.; 1989 Dec. Includes references. Language: English Descriptors: Georgia; Triticum aestivum; Winter wheat; Triticale; Breeding aims; Resistance; Mayetiola destructor; Variety trials; Genotypes; Varietal susceptibility 464 NAL Call. No.: QL461.G4 Tarnished plant bug (Heteroptera: Miridae) populations on a susceptible and a resistant soybean. Lambert, L.; Snodgrass, G.L. Tifton, Ga. : Georgia Entomological Society; 1989 Jul. Journal of entomological science v. 24 (3): p. 378-380; 1989 Jul. Includes references. Language: English Descriptors: Mississippi; Glycine max; Lygus lineolaris; Population density; Susceptibility; Resistance; Sampling 465 NAL Call. No.: SB608.M2I57 1987 Techniques for screening maize for resistance to mites. Archer, T.L. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 178-183. ill; 1987. Includes references. Language: English Descriptors: Zea mays; Breeding programs; Screening; Techniques; Resistance; Oligonychus pratensis; Host plants; Hosts of plant pests; Host parasite relationships; Evaluation 466 NAL Call. No.: SB608.M2I57 1987 Technological advances for determining resistance in maize to Heliothis zea. Wiseman, B.R. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center; 1987. Toward insect resistant maize for the Third World : proc of the International Symposium on Methodologies for Developing Host Plant Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 94-100. ill; 1987. Includes references. Language: English Descriptors: Zea mays; Breeding programs; Resistance; Helicoverpa zea; Screening; Techniques 467 NAL Call. No.: 421 EN895 Temporary loss of antibiosis in plants of a lucerne cultivar selected for resistance to spotted alfalfa aphid. Hughes, R.D.; Hughes, M.A. Dordrecht : Kluwer Academic Publishers; 1988 Nov. Entomologia experimentalis et applicata v. 49 (1/2): p. 75-82; 1988 Nov. Includes references. Language: English Descriptors: Australian capital territory; Medicago sativa; Cultivars; Pest resistance; Therioaphis trifolii; Incidence; Temperature; Bioassays 468 NAL Call. No.: 64.8 C883 Terpenoid aldehydes in upland cottons. II. Genotypes-environment interactions. Altman, D.W.; Stipanovic, R.D.; Benedict, J.H. Madison, Wis. : Crop Science Society of America; 1989 Nov. Crop science v. 29 (6): p. 1451-1456; 1989 Nov. Includes statistical data. Includes references. Language: English Descriptors: Texas; Gossypium hirsutum; Genotypes; Pest resistance; Terpenoids; Aldehydes; Leaves; Buds; Chemical constituents of plants; Heritability; Genotype environment interaction; Stability; Genetic variation; Provenance Abstract: Cotton (Gossypium hirsutum L.) has unique secondary natural products, sesqui- and sesterterpenoid aldehydes, that have the potential to control phytophagous insect pests, but information on their inheritance has been limited to only one compound, gossypol (G). The objective of this study was to determine genetic and environmental variances and interactions, heritability, and genotypic stability for the major nonvolatile terpenoids in foliar pigment glands. A genotype-by-environment experiment, which included 14 genotypes having from normal to very elevated terpenoid content, was conducted at five diverse Texas locations over 2 yr. Flower buds at the third-grown square stage and first nonglossy terminal leaves were sampled 3 wk after first bloom and analyzed by high performance liquid chromatography (HPLC) for G,p-hemigossypol quinone (HGQ), and the heliocides H1, H2, H3, and H4. Aniline-reation measurements were made for total flower bud terpenoids. The HPLC data for location means showed differences between the high and low values ranging from eightfold for leaf HGQ to less than twofold for flower bud H2. Genetic X environment variance components were less than genetic variance components in all instances and were generally very small. Error variance exceeded genetic variance only for HGQ, G, and H4 in leaves and for H4 in flower buds. Broad-sense heritabilities averaged 0.46, 0.94. 0.61, and 0.93 for leaves on a plot-basis, leaves on an entry mean-basis, flower buds on a plot-basis, and flowers buds on an entry mean-basis, respectively. Stability analyses gave regression coefficients from 0.05 to 2.11 (1.00 defined a stable genotype.) for high-terpenoid lines, whereas commercial cultivars had values from 0.11 to 1.05. Our results indicated that plant breeders and geneticists can select for higher terpernoid levels if this goal is considered desirable in the broad context of increasing cotton host-plant resistance. 469 NAL Call. No.: 442.8 AM3 Terpenoids in foliar pigment glands of A, D, and AD genome cottons: introgression potential for pest resistance. Altman, D.W.; Stipanovic, R.D.; Bell, A.A. New York, N.Y. : Oxford University Press; 1990 Nov. The Journal of heredity v. 81 (6): p. 447-454. ill; 1990 Nov. Includes references. Language: English Descriptors: Gossypium; Gossypium hirsutum; Genomes; Terpenoids; Plant pigments; Plant glands; Plant morphology; Introgression; Interspecific hybridization; Leaves; Buds; Seeds; Insect pests; Pest resistance Abstract: High-performance liquid chromatographic analyses showed that leaves of 58 accessions of 18 species of Gossypium exhibited relatively consistent differences in terpenoids among species. Cotton terpenoids, such as gossypol, are economically important secondary metabolites that accumulate primarily in gland structures throughout the plant. Color and other morphological characters associated with foliar pigment glands also were distinctive in this germplasm and could be important for taxonomic and evolutionary studies. Upland cotton (G. hirsutum) was crossed with G. raimondii, a species that produces the unique terpenoid, raimondal. In the interspecific hybrids, we detected raimondal concentrations in leaves and flower buds that averaged 9% and 12.3%, respectively, of the level in G. raimondii. Large reductions occurred in the quantity of para- oxidation terpenoids in the hybrids in comparison to the cultivated cotton parents; these reductions were not associated with major changes in the number or size of the glands. Thus, terpenoid introgression for profile shifts are possible but will require careful progeny selection to maximize expression. 470 NAL Call. No.: 100 L936 Total seed gossypol in bullworm-tobacco budworm resistant experimental cotton strains. Jones, J.E.; Dickson, J.I.; Bartkiewicz, S.A. Baton Rouge, La. : The Department; 1989. Report of projects - Louisiana Agricultural Experiment Station, Department of Agronomy. p. 22-25; 1989. Includes references. Language: English Descriptors: Gossypium; Strains; Resistance; Helicoverpa zea; Heliothis virescens; Seeds; Gossypol 471 NAL Call. No.: SB608.M2I57 1987 Toward insect resistant maize for the Third World proceedings of the International Symposium on Methodologies for Developing Host Plant Resistance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987. Keyser, Janet; Russell, Nathan International Maize and Wheat Improvement Center International Symposium on Methodologies for Developing Host Plant Resistance to Maize Insects 1987 : International Maize and Wheat Improvement Center. Mexico, D.F., Mexico : International Maize and Wheat Improvement Center,; 1989. vii, 327 p. : ill. ; 30 cm. Abstracts also in French and Spanish. Edited by Janet Keyser and Nathan Russell. Includes bibliographical references. Language: English Descriptors: Corn; Disease and pest resistance; Developing countries; Congresses; Corn; Disease and pest resistance; Developing countries; Genetic aspects; Congresses; Corn; Developing countries; Breeding; Congresses 472 NAL Call. No.: 442.8 Z8 Transfer of Hessian fly resistance from 'Chaupon' rye to hexaploid wheat via a 2BS/2RL wheat-rye chromosome translocation. Friebe, B.; Hatchett, J.H.; Sears, R.G.; Gill, B.S. Berlin, W. Ger. : Springer International; 1990. Theoretical and applied genetics v. 79 (3): p. 385-389. ill; 1990. Includes references. Language: English Descriptors: Secale cereale; Triticum aestivum; Mayetiola destructor; Intergeneric hybridization; Chromosome translocation; Addition lines; Translocation lines; C bands; Polyploidy; Genetic resistance; Antibiosis; Larvae; Mortality 473 NAL Call. No.: 100 K13S (4) no.49 Transference of Hessian fly resistance and other characteristics of Marquillo spring wheat to winter wheat. Painter, Reginald H. Manhattan, Kan. : Agricultural Experiment Station, Kansas State College of Agriculture and Applied Science,; 1940. 55 p. : ill. ; 23 cm. (Technical bulletin (Kansas Agricultural Experiment Station) ; 49.). Cover title. Bibliography: p. 53-54. Language: English Descriptors: Hessian flies; Winter wheat 474 NAL Call. No.: SB327.A1B5 Transferring genes for arcelin protein from wild to cultivated beans: implications for bruchid resistance. Harmsen, R.; Bliss, F.A.; Cardona, C.; Posso, C.E.; Osborn, T.C. Geneva, N.Y. : Bean Improvement Cooperative; 1988. Annual report of the Bean Improvement Cooperative v. 31: p. 54-55; 1988. Includes references. Language: English Descriptors: Phaseolus vulgaris; Genes; Transfers; Proteins; Resistance; Insect pests; Zabrotes subfasciatus 475 NAL Call. No.: 10 OU8 Transforming plants as a means of crop protection against insects. Hilder, V.A.; Gatehouse, A.M.R. Oxon : C.A.B. International; 1990 Sep. Outlook on agriculture v. 19 (3): p. 179-183. ill; 1990 Sep. Literature review. Includes references. Language: English Descriptors: Plant protection; Genetic engineering; Genetic transformation; Insect control; Pest resistance; Amino acid sequences; Literature reviews 476 NAL Call. No.: QD1.A45 Transgenic crop varieties resistant to insects. Vaeck, M.; Reynaerts, A.; Hofte, H.; Mellaert, H. van Washington, D.C. : The Society; 1988. ACS Symposium series - American Chemical Society (379): p. 280-283; 1988. Includes references. Language: English Descriptors: Crops; Molecular genetics; Varieties; Insect control; Toxins; Inheritance 477 NAL Call. No.: S601.A34 Trends affecting research strategies in plant resistance to insects. Smith, C.M. Amsterdam : Elsevier; 1986 Oct. Agriculture, ecosystems and environment v. 18 (1): p. 1-7; 1986 Oct. Includes references. Language: English Descriptors: Developing countries; Crops; Insect pests; Pest resistance; Germplasm; Genetic resources; Bioassays; Insect control 478 NAL Call. No.: 472 N21 Tritrophic effects of a simple architectural mutation in pea plants. Kareiva, P.; Sahakian, R. London : Macmillan Magazines Ltd; 1990 May31. Nature v. 345 (6274): p. 433-434; 1990 May31. Includes references. Language: English Descriptors: Pisum sativum; Acyrthosiphon pisum; Coccinella septempunctata; Adonia variegata; Genetics; Morphology; Resistance; Predators of insect pests Abstract: When studying interactions between trophic levels, ecologists often restrict their attention to two levels as a means of simplifying the analysis; unfortunately, this simplification can be misleading if tritrophic interactions (such as plant-herbivore-predator) cannot be understood by simply adding together pairwise interactions (plant-herbivore plus herbivore- predator, for example). We examined the significance of tritrophic interactions by asking how the morphology of the common pea (Pisum sativum) influences the population growth of pea aphids (Acyrthosiphon pisum) in the presence and in the absence of a third trophic level. We found significant interactions between the first trophic level (peas) and the third trophic level (ladybird beetles) in determining aphid population growth. Our results point out how simple genetic changes can yield morphological variants in plants that differ dramatically in their resistance to herbivores due to the effects of plant architecture on enemies of the herbivore. 479 NAL Call. No.: 64.8 C883 Turkish alfalfa cultivars screened for alfalfa weevil resistance. Ratcliffe, R.H.; Elgin, J.H. Jr Madison, Wis. : Crop Science Society of America; 1990 Sep. Crop science v. 30 (5): p. 994-996; 1990 Sep. Includes references. Language: English Descriptors: Turkey; Medicago sativa; Cultivars; Provenance; Genetic variation; Screening; Antibiosis; Nonpreference; Hypera postica; Larvae; Survival; Weight Abstract: Alfalfa (Medicago sativa L.) cultivars have been developed with tolerance to the alfalfa weevil [Hypera postica (Gyllenhal)], but not antibiosis or nonpreference. This study evaluated 28 Turkish alfalfa cultivars as sources of resistance expressed as antibiosis or feeding nonpreference. One hundred plants of each cultivar were tested in the laboratory to characterize resistance. Resistance was evaluated by caging 10 neonate alfalfa weevil larvae on plants for 8 d. Mean larval survival and weight after 8 d feeding was compared with that on the susceptible cultivar Ranger. Plants selected for resistance were vegetatively propagated and re-evaluated in replicated tests. Larval survival and development on Turkish cultivars did no differ from that on Ranger although larval survival was lower on three selected clones in one experiment. These clones did not demonstrate resistance when retested approximately 2 mo later. None of the Turkish cultivars appeared to be promising sources of antibiosis or nonpreference. 480 NAL Call. No.: 100 M69MI Two new cotton germplasm lines Miscot 7813 and Miscot 7841. Mississippi State, Miss. : The Station; 1986 Jun. MAFES research highlights - Mississippi Agricultural & Forestry Experiment Station v. 49 (6): p. 2. ill; 1986 Jun. Language: English Descriptors: Mississippi; Gossypium; Lines; Crosses; Heliothis virescens; Pest resistance 481 NAL Call. No.: 421 J822 Twospotted spider mite (Acari: Tetranychidae) infestations on soybeans: effect on composition and growth of susceptible and resistant cultivars. Hildebrand, D.F.; Rodriguez, J.G.; Brown, G.C.; Volden, C.S. College Park, Md. : Entomological Society of America; 1986 Aug. Journal of economic entomology v. 79 (4): p. 915-921; 1986 Aug. Includes references. Language: English Descriptors: Glycine max; Cultivars; Pest resistance; Tetranychus urticae; Plant damage; Growth; Dry matter accumulation; Chlorophyll; Carotenoids; Chemical constituents of plants; Seeds 482 NAL Call. No.: 64.8 C883 Use of greenbug biotype mixtures in evaluating wheat seedlings for resistance. Tyler, J.M.; Webster, J.A.; Merkle, O.G. Madison, Wis. : Crop Science Society of America; 1987 Mar. Crop science v. 27 (2): p. 350-351; 1987 Mar. Includes references. Language: English Descriptors: Triticum aestivum; Resistance to parasites; Schizaphis graminum; Biotypes; Mixtures; Screening tests; Genotypes; Plant breeding methods Abstract: Currently, no single source of greenbug [Schizaphis graminum (Rondani)] resistance in wheat (Triticum aestivum L.) germplasm available to wheat breeders provides resistance to all known greenbug biotypes in the field. Therefore, two sources of resistance are being combined in several wheat breeding programs. This requires the evaluation of progeny for reaction to two greenbug biotypes instead of one. Our objective was to test the efficacy of infesting seedlings in the greenhouse with greenbugs of two biotypes simultaneously. Such a procedure, if feasible, could economize breeding protocols. OK81322, resistant to biotypes B and C, a 'Largo' derivative, resistant to biotypes C and E, and F1 and F2 progeny from the crosses of these genotypes were infested with a 1:1 mixture of biotypes B and E greenbugs. All plants of both parental genotypes were susceptible, all F1 plants were resistant, and the population of F2 plants segregated for greenbug resistance. Results indicated that evaluation of breeding material with mixed greenbug populations is reliable, and this technique should be more efficient than conducting separate biotype tests. 483 NAL Call. No.: 60.9 AL2 Use of strain crosses in breeding multiple pest resistant alfalfa. Elgin, J.H. Jr s.l. : U.S. Department of Agriculture, Agricultural Research Service; 1981 May. Report of the Alfalfa Improvement Conference (27th): p. 58; 1981 May. Meeting held July 8-10, 1980, Madison, Wisconsin. Includes abstract. Language: English Descriptors: Medicago; Pest resistance; Breeding aims; Strain differences; Crosses 484 NAL Call. No.: 421 J822 Variation among green and wax beans in survival of larvae of a bivoltine-E race of the European corn borer (Lepidoptera: Pyralidae). Webb, D.R.; Eckenrode, C.J.; Dickson, M.H. College Park, Md. : Entomological Society of America; 1987 Apr. Journal of economic entomology v. 80 (2): p. 521-524; 1987 Apr. Includes references. Language: English Descriptors: New York; Phaseolus vulgaris; Lines; Cultivars; Ostrinia nubilalis; Races; Pest resistance; Larvae; Survival 485 NAL Call. No.: 421 J822 Variations in damage to wheat caused by Russian wheat aphid (Homoptera: Aphididae) in Texas. Bush, L.; Slosser, J.E.; Worrall, W.D. Lanham, Md. : Entomological Society of America; 1989 Apr. Journal of economic entomology v. 82 (2): p. 466-471; 1989 Apr. Includes references. Language: English Descriptors: Texas; Triticum aestivum; Crop damage; Hemiptera; Pest resistance; Varietal susceptibility Abstract: The Russian wheat aphid, Diuraphis noxia (Mordvilko), was discovered in Texas on wheat, Triticum aestivum L., in 1986, and 17 collections from 11 Texas counties were made that same year. Two Russian wheat aphid collections, designated as the Randall 2290 colony and the Swisher colony, were tested on four wheat varieties with three infestation levels to differentiate suseptible and resistant plants. Two aphids per plant were the best initial infestation level because higher levels caused too much damage and masked differences between the wheat varieties. Plant height, expressed as a percentage of an uninfested check, was a nonsubjective measure of plant response to Russian wheat aphid. In a second test, all 17 collections were tested on TX78V2290-36-1 (TXGH2290) and 'TAM 107' with an initial infestation level of two aphids per plant. The results from the second test indicated that there were significant variations in damage between aphid cultures, and differences between colonies occurred within counties and between counties. Reproductive capacity of Russian wheat aphid was affected by variety and was highest overall on TXGH2290. We suggest that TXGH2290 could be used as a susceptible standard in future host plant resistant studies, and this breeding line has been recommended for release. These findings indicate that there are important genetic differences within Russian wheat aphid. 486 NAL Call. No.: QL461.E532 Variations in feeding behavior, fecundity, and damage of biotypes B and E of Schizaphis graminum (Homoptera: Aphididae) on three wheat genotypes. Niassy, A.; Ryan, J.D.; Peters, D.C. College Park, Md. : Entomological Society of America; 1987 Oct. Environmental entomology v. 16 (5): p. 1163-1168; 1987 Oct. Includes references. Language: English Descriptors: Triticum aestivum; Genotypes; Schizaphis graminum; Biotypes; Feeding behavior; Pest resistance; Fecundity; Plant damage 487 NAL Call. No.: QL461.I57 Varietal resistance in sorghum to midge, Contarinia sorghicola Coquillett (Diptera: Cecidomyiidae). Singh, B.U. Oxford, Eng. : Pergamon Press; 1987. Insect science and its application v. 8 (2): p. 129-144; 1987. Literature review. Includes references. Language: English Descriptors: Sorghum bicolor; Varieties; Contarinia sorghicola; Pest resistance; Screening; Tannins; Inheritance; Genetics 488 NAL Call. No.: QL461.I57 Varietal resistance in sorghum to spotted stem borer, Chilo partellus (Swinhoe). Singh, B.U.; Rana, B.S. Nairobi, Kenya : ICIPE Science Press; 1989. Insect science and its application v. 10 (1): p. 3-27; 1989. Literature review. Includes references. Language: English Descriptors: India; Sorghum; Chilo partellus; Varietal resistance; Antibiosis; Breeding; Tolerance 489 NAL Call. No.: 64.8 C883 Volatile monoterpenes collected from the air surrounding flower buds of seven cotton genotypes. Chang, J.F.; Benedict, J.H.; Payne, T.L.; Camp, B.J. Madison, Wis. : Crop Science Society of America; 1988 Jul. Crop science v. 28 (4): p. 685-688; 1988 Jul. Includes references. Language: English Descriptors: Texas; Gossypium hirsutum; Genotypes; Anthonomus grandis; Monoterpenes; Insect pests; Pest resistance; Chemical composition; Volatile compounds Abstract: Some volatile monoterpenes released by cotton (Gossypium hirsutum L.) are olfactory cues to boll weevils (Anthonomous grandis Boheman) and some parasites. However, literature examined showed no studies that described or compared the monoterpene odor of different cotton genotypes at different stages of growth or in different environments. The objective of our study was to determine the monoterpene composition of the air surrounding flower buds of five cotton genotypes ('CAMD-E', 'SP-37', STV-213', STV-213 glandless, RDC-102 glandless, HG-1, and LEBO) grown under normal agronomic practices at College Station and Corpus Christi, TX. The monoterpenes were collected from the air surrounding excised buds of each genotype with a Porap ak Q effluvial collection system. The quantity of each monoterpene was determined with capillary column gas chromatography utilizing purified standards. The most abundant monoterpenes collected were alpha-pinene, beta-pinene, beta- myrcene, d-limonene, and beta-ocimene. The total quantity of these five monoterpenes was greater for buds of glanded genotypes than for buds of glandless genotypes. Ratios of the five monoterpenes provided a relatively characteristic chemical profile for each genotype. Quantities and ratios of the five monoterpenes collected from buds were dynamic in that they fluctuated with the age of the cotton plant and the environment in which the plants were grown. These results indicate that the five monoterpenes composing, in part, the odor of commercial upland cotton, may differ spatially, temporally, and genetically. This suggests that researchers attempting to identify attractive plant odors should simultaneously compare insect responses and plant odor composition. 490 NAL Call. No.: 421 J822 Weed management to minimize black cutworm (Lepidoptera: Noctuidae) damage in no-till corn. Engelken, L.K.; Showers, W.B.; Taylor, S.E. Lanham, Md. : Entomological Society of America; 1990 Jun. Journal of economic entomology v. 83 (3): p. 1058-1063; 1990 Jun. Includes references. Language: English Descriptors: Iowa; Zea mays; Seedlings; Crop damage; Hybrids; Lines; Pest resistance; Agrotis ipsilon; Crop weed competition; Insect control; Weed control Abstract: Field studies were conducted in 1984 and 1985 to evaluate the interaction between black cutworm, Agrotis ipsilon (Hufnagel), damage and weed competition on no-till corn (Zea mays L.) growth and yields. Corn seedling damage by A. ipsilon introduced as third instars 5 d before planting was most severe when weeds were removed at the coleoptile stage and larvae were predicted to be fifth to sixth instars. Delaying weed removal until plants had attained the two-leaf stage significantly decreased the percentage of corn plants damaged by A. ipsilon larvae. A. ipsilon larvae introduced as second instars or a combination of neonate, second, and third instars 5 d before planting damaged more corn plants when weed removal was performed at two-leaf stage corn and larvae were predicted to be fifth to sixth instars. A significant relationship between the number of corn seedlings cut and weed population occurred for these introduced smaller instars when weed removal occurred at two-leaf stage corn. Delaying weed removal until four-leaf stage corn resulted in significant grain yield reductions from both weed competition and A. ipsilon damage in 1984 and only from weed competition in 1985. 491 NAL Call. No.: 64.8 C883 Wheat curl mite and wheat streak mosaic in moderate trichome density wheat cultivars. Harvey, T.L.; Martin, T.J.; Seifers, D.L. Madison, Wis. : Crop Science Society of America; 1990 May. Crop science v. 30 (3): p. 534-536; 1990 May. Includes references. Language: English Descriptors: Kansas; Triticum aestivum; Cultivars; Disease resistance; Wheat streak mosaic virus; Pest resistance; Eriophyes; Disease vectors; Plant hairs; Trichomes; Density; Varietal susceptibility Abstract: The landing efficiency of the wheat curl mite (WCM), Eriophyes tulipae, is increased on wheat (Triticum aestivum L.) cultivars that have high densities of leaf trichomes. This results in a higher incidence of wheat streak mosaic (WSM), which is caused by whey streak mosaic virus (WSMV) and vectored by the WCM. This study was conducted to determine if moderate levels of leaf trichomes, found on many commonly grown cultivars, can have a significant effect on a cultivar's susceptibility to WSMV. Cultivar trichome density was assessed on greenhouse-grown plants. The relative ability of WCM to land on the cultivars was tested in the greenhouse by exposing the plants to airborne WCM and making WCM counts before reproduction occurred. The incidence of WSM in the field was assessed by the presence or absence of visual symptoms and numbers of WCM in spikes were measured during the 1987 and 1988 crop years, at Hays, KS. 'Arkan' and 'TAM 108' had moderate trichome densities on leaves two, four, and six (three- leaf mean = 28.4 and 22.8 mm-2, respectively) and were more heavily infested by WCM in greenhouse and field tests when compared to cultivars (Century, TAM 107, Larned, and Newton) that have low trichome densities (6.0, 8.6, 5.0 and 5.7 trichomes mm-2, respectively). The cultivars with moderate levels of leaf trichomes also had more plants with WSM in both years. Cultivars (Century and TAM 107) with the rye (Secale cereale L.)-derived WCM resistance and few trichomes had the lowest incidence of WSM. Some cultivars now widely grown in Kansas may have sufficient pubescence to significantly increase their susceptibility to WSMV. New cultivars developed for areas where WSMV is a production constraint would probably benefit from having leaves with low trichome density. 492 NAL Call. No.: 421 J822 Wheat genes conditioning resistance to the Hessian fly (Diptera: Cecidoymiidae) in Morocco. El Bouhssini, M.; Amri, A.; Hatchett, J.H. College Park, Md. : Entomological Society of America; 1988 Apr. Journal of economic entomology v. 81 (2): p. 709-712; 1988 Apr. Includes references. Language: English Descriptors: Morocco; Triticum aestivum; Cultivars; Lines; Pest resistance; Mayetiola destructor; Larvae 493 NAL Call. No.: QL461.I57 Winter wheat resistance to the grain aphid Sitobion avenae (Fabr.) (Homoptera, Aphididae). Leszczynski, B. Oxford, Eng. : Pergamon Press; 1987. Insect science and its application v. 8 (2): p. 251-254; 1987. Includes references. Language: English Descriptors: Poland; Triticum aestivum; Cultivars; Sitobion avenae; Pest resistance; Fecundity; Population dynamics 494 NAL Call. No.: QL461.E532 Within-plant patterns of Therioaphis maculata on resistant, tolerant, and susceptible alfalfa plants. Berberet, R.C.; McNew, R.W.; Dillwith, J.W.; Caddel, J.L. Lanham, Md. : Entomological Society of America; 1991 Apr. Environmental entomology v. 20 (2): p. 551-555; 1991 Apr. Includes references. Language: English Descriptors: Medicago sativa; Therioaphis trifolii form maculata; Pest resistance; Cultivars; Antibiosis; Varietal susceptibility Abstract: Plant lines with resistance (antibiosis or antixenosis or both), tolerance, or susceptibility to the spotted alfalfa aphid, Therioaphis maculata (Buckton), were selected from the cultivar OK08 for use in studies to describe the within-plant pattern of the aphid in the foliar canopy of alfalfa. Aphid counts and damage ratings were analyzed for each node (from the crown), and profiles of averages per node for each alfalfa line were prepared to illustrate within-plant patterns. Numbers of spotted aphids per node or per stem on susceptible and tolerant plants were significantly higher than on resistant plants. After 10 d of infestation, damage ratings averaged over nodes were significantly higher for susceptible plants than for those with resistance or tolerance. On all three lines, the spotted alfalfa aphid showed a clear preference for leaf blades over petioles or stems, and the greatest numbers were consistently found on nodes nearest the plant crowns. Little upward movement on stems was evident until damage to leaf blades of lower nodes had resulted in necrosis and leaf drop. 495 NAL Call. No.: 421 J822 Yellow sugarcane aphid (Homoptera: Aphididae): detection and mechanisms of resistance among Ethiopian sorghum lines. Webster, J.A. Lanham, Md. : Entomological Society of America; 1990 Jun. Journal of economic entomology v. 83 (3): p. 1053-1057; 1990 Jun. Includes references. Language: English Descriptors: Ethiopia; Oklahoma; Sorghum; Lines; Pest resistance; Sipha flava Abstract: More than 5,000 Ethiopia lines of sorghum were evaluated for yellow sugarcane aphid, Sipha flava (Forbes), resistance. Three lines (PI 453951, PI 457709, and PI 457715) were moderately resistant as determined by visual damage ratings of seedlings in greenhouse flat tests. These lines were then subjected to additional tests to determine the components or mechanisms of resistance. All three lines exhibited antibiosis, with an average of 19.0, 22.3, and 25.0 nymphs per adult on PI 453951, PI 457715, and PI 457709, respectively, compared with 62.3 nymphs per adult on PI 264453, a widely used source of resistance to greenbug (Schizaphis graminum (Rondani)). Antixenosis (nonpreference) did not appear to be a resistance mechanism of these lines. In the tolerance test, growth of plants infested with yellow sugarcane aphid ranged from 77% of the uninfested plants of PI 457715 to 36% in PI 264453. Although the level of yellow sugarcane aphid resistance is not as high as the greenbug resistance that has been incorporated into many sorghum hybrids, these lines appear to be the best sources currently available. Thus, field tests and inheritance studies with the three lines are justified. 496 NAL Call. No.: 64.8 C883 Yield, earliness, and fiber properties of cotton carrying combined traits for pink bollworm resistance. Wilson, F.D. Madison, Wis. : Crop Science Society of America; 1989 Jan. Crop science v. 29 (1): p. 7-12; 1989 Jan. Includes references. Language: English Descriptors: Arizona; California; Gossypium hirsutum; Lines; AMorphology; Resistance to injurious factors; Pectinophora gossypiella; Plant damage; Seeds; Crop yield; Lint; Fiber quality; Early maturation; Germplasm; Cultivars; Agronomic characteristics Abstract: The nectariless (N) and okra-leaf (L) traits confer low levels of resistance in cotton, Gossypium hirsutum L., to pink bollworm (PBW), Pectinophora gossypiella (Saunders). The semi- smoothleaf (SS) trait reduces the amount of leaf trash in mechanically harvested seed-cotton. The main objective of this study was to compare NL (or NSSL) isolines with N (or NSS) isolines and with check cultivars for resistance to PBW, lint yield, earliness, and fiber properties. The experiments were grown at three locations: Tempe, AZ; Maricopa, AZ; and Brawley, CA. In three experiments grown without the use of insecticide, two of the six NL (or NSSL isolines (DES 56NL and DES 24NSSL) had significantly less seed damage caused by PBW, did not yield significantly less lint, were significantly earlier, and had deficient to comparable fiber properties when compared with the N counterpart isolines. The Stoneville 825 NL isolines yielded significantly more lint and had fiber properties comparable to the N isoline, but was not earlier and did not have less seed damage. All N, NL, NSS, and NSSL lines that were compared with nectaried, regular-leaf cultivars sustained less seed damage, and most were equal in lint yield and earliness. In a fourth, insecticide-treated experiment, DES 56NL required fewer insecticide applications, had significantly less seed damage, and was earlier maturing than the nectaried, regular-leaf Deltapine 61' (DPL-61) at two locations, and yielded more lint at one location. Fiber of DES 56NL was shorter, weaker, and coarser, but had elongation strength equal to that of DPL-61. In three of the four experiments, some year X cotton and location X cotton interaction effects were significant. Thus, in spite of some deficiencies in properties and performance, cotton germplasm lines are becoming available that combine PBW resistance with yield potential, earliness, and fiber properties that approach or equal those traits in cultivars.