Bock, C.H., Parker, P., Cook, A., Gottwald, T.R. 2008. Visual rating and the use of image analysis for assessing different symptoms of citrus canker on grapefruit leaves. Plant Disease. 92:530-541.
Bock, C.H., Parker, P., Cook, A., Gottwald, T.R. 2008. Characteristics of the perception of different severity measures of citrus canker and the relations between the various symptom types. Plant Disease. 92:927-939.
Cook, A., Gibson, G., Gottwald, T.R., Gilligan, C. 2008. Constructing the effect of alternative intervention strategies on historic epidemics. Proceedings of the Royal Society of London B. doi:10.1098/rsif.2008.0030
Duan, Y., Zhou, L., Gottwald, T.R., Gabriel, D. 2008. First Report of Dodder Transmission of Candidatus Liberibacter asiaticus to Tomato (Lycopersicon esculentum). Plant Disease. 91:227.
Behlau, F., Belasque Jr., J., Bergamin-Filho, A., Graham, J., Leite, Jr., R., Gottwald, T.R. 2008. Copper Sprays and Windbreaks for Control of Citrus Canker on Young Orange Trees in Southern Brazil. Crop Protection Journal. 27:807-813.
Cook, A., Gibson, G., Gottwald, T.R., Gilligan, C. 2008. Constructing the effect of alternative intervention strategies on historic epidemics. Journal of the Royal Society Interface, 5:1203-1213. doi:10.1098/rsif.2008.0030
Gottwald, T.R. 2007. Citrus Canker and Citrus Huanglongbing, Two Exotic Bacterial Diseases Threatening the Citrus Industries of the Western Hemisphere. Outlooks on Pest Management. 18(6):274-9.
Hall, D.G., Gottwald, T.R., Nguyen, C.M., Ichinose, K., Le, D.Q., Beattie, A. 2007. Intercropping of citrus and guava trees for management of Huanglongbing [abstract]. Florida Entomological Society Annual Meeting, July 15-18, 2007, Sarasota, Florida. Paper No. 72.
Gottwald, T.R., Da Graca, J.V., Bassanezi, R.B. 2007. Citrus Huanglongbing: The Pathogen and Its Impact. Plant Health Progress. Online: doi:10.1094/PHP-2007-0906-01-RV.
Parnell, S.R., Riley, T., Gottwald, T.R. 2007. Large-scale surveys for multiple pest species; the search for citrus canker and huanglongbing in Florida. American Phytopathological Society Annual Meeting.
Gottwald, T.R., Irey, M.S. 2007. Post-hurricane analysis of citrus canker ii: predictive model estimation of disease spread and area potentially impacted by various eradication protocols following catastrophic weather events. Plant Health Progress. doi:10.1094/PHP-2007-0405-01-RS.
Gottwald, T.R., Bassanezi, R., Amorim, L., Bergamin-Filho, A. 2007. Spatial pattern analysis of citrus canker infected plantings in São Paulo, Brazil and implication of the asian leafminer on the potential dispersal processes. Phytopathology. 97:674-683.
Novelli, V., Freitas-Astua, J., Arrivabem, F., Locali, E., Hilf, M.E., Gottwald, T.R., Machado, M. 2007. Influence of the storage period and number of individuals on the detection of false spider mite endosymbionts. Experimental and Applied Acarology. 42:17-21.
Gottwald, T.R., Dixon, T. 2006. Florida actions toward HLB control. Proceedings of the International Workshop on Citrus Greening, July 14-21, Ribeiro Preto, Brazil. p.67-68.
Gottwald, T.R., Dixon, W., Parnell, S.R., Riley, T. 2006. Huanglongbing: The dragon arrives in the USA. Huanglongbing-greening International Workshop, July 14-21, Ribeiro Preto, Brazil. P13-14.
Gottwald, T.R., Aubert, B., Zhao, X., Bergamin-Filho, A., Bassanezi, R., Amorim, L. 2006. Huanglongbing Epidemiology: An international perspective. Proceedings of Huanglongbing-greening International Workshop, July 14-21, 2006, Ribeiro Preto, Brazil. P. 35-36.
Irey, M.S., Gast, T., Gottwald, T.R. 2006. Sensitivity of pcr-based methods for detection of asiatic strain of the huanglongbing bacterium in symptomatic and asymptomatic citrus tissues. Meeting Abstract. Proceedings of the Huanglongbing-greening International Workshop, July 14-21, 2006, Ribeiro Preto, Brazil. P. 19-20.
Bassanezi, R., Bergamin Filho, A., Amorim, L., Gottwald, T.R. 2006. Epidemiology of Huanglongbing in Sao Paulo. Huanglongbing-greening International Workshop, July 14-21, 2006, Ribeiro Preto, Brazil. P.37-38.
Irey, M.S., Gottwald, T.R., Graham, J., Riley, T., Carlton, G. 2006. Post-hurricane analysis of citrus canker spread and progress towards the development of a predictive model for future weather related spread. Plant Health Progress.
Irey, M.S., Gottwald, T.R. 2006. Incorporation of distance-of-spread calculations into a weather-based model describing disease distribution after severe weather events. Phytopathology. 96(6): (Supplement) S152.
Irey, M.S., Gast, T., Gottwald, T.R. 2006. Comparison of visual assessment to polymerase chain reaction assay testing to estimate the incidence of the huanglongbing pathogen in commercial plantings in florida. Proceedings of Florida State Horticultural Society. 42:17-21.
Bock, C., Parker, P., Cook, A., Gottwald, T.R. 2006. Repeatability and comparision of image analysis and visual assessment for disease assessment of citrus canker. Phytopathology. 96(6): (Supplement) S13-14.
Bock, C., Parker, P., Cook, A., Gottwald, T.R. 2006. The decline in quantity of bacteria of Xanthomonas axonopodis pv citri dispersed from canker-infected citrus plants during wind/rain events. Phytopathology. 96(6): Supplement S13.
Nunes, M., Freitas-Astua, J., Kitajima, E., Hilf, M.E., Gottwald, T.R., De Oliveira, C. 2006. Rt-pcr detection of citrus leprosis virus in shrubs and weed plants infected through brevipalpus phoenicis (acari: tenuipalpidae). Congresso Brasileiro de Entomologia Proceedings.
Novelli, V., Freitas-Astua, J., Arrivabem, F., Locali, E., Hilf, M.E., Gottwald, T.R., Machado, M. 2006. Influência da presença de endossimbionte em Brevipalpus phoenicis na aquisição e transmissão do vírus da leprose dos citros.. Fitopatologia.
Novelli, V., Freitas-Astua, J., Rodrigues, V., Navia, D., Silva, L., Muller, G., Hilf, M.E., Gottwald, T.R., Machado, M. 2006. Prevalência de endossimbiontes cardinium em populações de ácaros brevipalpus phoenicis de diferentes regiões brasileiras.. Congresso Brasileiro de Entomologia Proceedings.
Novelli, V., Freitas-Astua, J., Arrvabem, F., Mineiro, J., Sato, M., Hilf, M.E., Gottwald, T.R., Machado, M. 2006. Avaliação da presença de endossimbiontes cardinium em diferentes espécies de artrópodes.. Congresso Brasileiro de Entomologia Proceedings.
Novelli, V., Freitas-Astua, J., Arrivabem, F., Locali, E., Hilf, M.E., Gottwald, T.R., Machado, M. 2006. O acaro vetor da leprose dos citros (brevipalpus phoenicis)e a interacao com endossimbiontes. LARANJA. 26:2:273-289.
Gottwald, T.R., Graham, J.H. 2005. Aps press online lessons in plant pathology - citrus canker. American Phytopathological Society Press On Line Lessons. DOI: 10.1094/PHI-I-2000-1002-01. (http://www.apsnet.org/education/lessonsPlantPath/CitrusCanker/Top.htm)
Irey, M.S., Gottwald, T.R., Graham, J., Carlton, G., Riley, T. 2005. Post-hurricane analysis of citrus canker spread and progress towards the development of a predictive model for future weather related spread. Meeting Abstract.
Mccollum, T.G., Bowman, K.D., Gottwald, T.R. 2006. Screening citrus germplasm for resistance to xanthomonas axonopodis pv. citri. Second International Research Workshop on Citrus Canker and Huanglongbing, November 2005. P18, p.3.
Gottwald, T.R., Bassanezi, R., Amorim, L., Bergamin-Filho, A. 2005. Spatial pattern analysis of citrus canker infected plantings in sao paulo brazil and implication of the asian leafminer on potential dispersal processes. International Citrus Canker and Huanglongbing Workshop, Orlando, FL, Nov 7-11, 2005. C7, p.17.
Gottwald, T.R. 2005. Huanglongbing epidemiology: tracking the dragon through time and space. Second International Citrus Canker and Huanglongbing Workshop, Orlando, FL, November 7-11, 2005. H6, p.53.
Gottwald, T.R. 2005. Citrus canker: doing battle with the beast for nearly a century. Second International Citrus Canker and Huanglongbing Workshop, Orlando, FL, November 7-11, 2005. C1,p.11.
Gottwald, T.R., Graham, J., Riley, T., Sun, X., Hughes, G., Ferrandino, F., Taylor, E.L., Bock, C., Irey, M.S., Gilligan, C., Seem, B. 2005. Estimating the increase and spread of citrus canker caused by the interaction of pedestrian versus catastrophic weather events, humans, and bad luck. Second International Citrus Canker and Huanglongbing Workshop, Orlando, FL, November 7-11, 2005. C3, p. 13.
Irey, M.S., Gottwald, T.R., Graham, J., Carlton, G., Riley, T. 2005. Post-hurricane analysis of citrus canker spread and progress towards the development of a predictive model for future weather related spread. Proceedings of the International Citrus Canker and Huanglongbing Workshop, Orlando, FL, Nov. 2005. C5, p15.
Parker, P., Gottwald, T.R., Levy, L., Cook, A. 2005. Construction and deployment of a mobile containment greenhouse/laboratory. Second International Citrus Canker and Huanglongbing Workshop, Orlando, FL, November 7-11, 2005. P12, p.77.
Irey, M.S., Graham, J., Gottwald, T.R. 2005. Progress towards the development of an effective risk analysis process for the florida citrus nursery industry to mitigate the impact of citrus canker and huanglongbing. Proceedings from the International Citrus Canker and Huanglongbing Workshop, Orlando, FL, Nov. 2005. P21;p86.
Bock, C., Parker, P., Gottwald, T.R., Mavrodieva, V., Levy, L. 2005. Using pcr for detection and quantification of xanthomonas axonopodis pv citri in wind driven splash. Second International Citrus Canker and Huanglongbing Workshop, Orlando, FL, November 7-11, 2005. C23, p.33.
Bock, C., Parker, P., Gottwald, T.R. 2005. The change in quantity of bacteria of xanthomonas axonopodis pv citri dispersed down wind from canker-infected grapefruit trees during a wind/rain event. International Citrus Canker and Huanglongbing Workshop, Orlando, FL, Nov. 2005. P13,p.78.
Bock, C., Parker, P., Cook, A., Gottwald, T.R. 2005. Wind speed effects on the dispersal of xanthomonas axonopodis pv citri and infection of grapefruit leaves. Second International Citrus Canker and Huanglongbing Workshop,Orlando, FL, November 7-11, 2005. C4, p.14.
Amorim, L., Jesus Junior, W., Bassanezi, R., Bergamin-Filho, A., Gottwald, T.R. 2005. Distance of spread of asian citrus canker from source of infection in commercial plantings in Sao Paulo, Brazil. International Citrus Canker and Huanglongbing Workshop, Orlando, FL, November 7-11, 2005. C8,p.18.
Bassanezi, R., Busato, L., Bergamin-Filho, A., Amorim, L., Gottwald, T.R. 2005. Spatial distribution of huanglongbing symptomatic trees in citrus groves in Sao Paulo, Brazil. Second International Citrus Canker and Huanglongbing Workshop, Orlando, FL, November 7-11, 2005. H7,p54.
Behlau, F., Bergamin-Filho, A., Belasque, Jr., J., Amorim, L., Leite, Jr., R., Gottwald, T.R. 2005. Epidemiology, management and effect on yield of citrus canker under endemic conditions in parana, brazil. Second International Citrus Canker and Huanglongbing Workshop, Orlando, FL, November 7-11, 2005. C12, p.22.
Benson, D., Grand, L., Vernia, C., Gottwald, T.R. 2006. Temporal and spatial epidemiology of phytophthora root rot in fraser fir plantations. Plant Disease. 90:1171-1180.
Gottwald, T.R., Riley, T.D. 2005. Long distance spread of citrus canker related to hurricanes and tropical storms. Proceedings of Florida State Horticultural Society.
Gottwald, T.R., Taylor, E.L. 2005. Predicting the risk of infection in a Citrus tristeza virus epidemic and testing for the intensity of virus competition with survival analysis. Proceedings of the 9th International Workshop of Plant Disease Epidemiology. C6 p. 53.
Gottwald, T.R. 2005. Conflicting agendas of commercial growers and residential tree owners during canker and plum pox eradication programs. Phytopathology. 95(6):S129.
Bock, C.H., Parker, P.E., Cook, A.Z., Gottwald, T.R. 2005. The effect of wind speed on the dispersal plume of bacteria downwind from canker-infected grapefruit trees. Phytopathology. 95:6S12.
Laranjeira, F.F., Bergamin-Filho, A., Amorim, L., Gottwald, T.R., Berger, R.D., Lopes, J.R.S. 2005. Spatial-temporal dynamics of citrus variegated chlorosis in Sao Paulo State, Brazil. Proceedings of the 9th International Workshop on Plant Disease Epidemiology. C8 p. 55.
Gottwald, T.R., Taylor, E.L. 2005. Using survival analysis to predict the risk of infection in a ctv epidemic. International Organization of Citrus Virologists Proceedings.
Gottwald, T.R., Palle, S., Miao, H., Seyran, M., Skaria, M., Da Graca, J. 2005. Assessment of the possibility of natural spread of citrus psorosis disease. International Organization of Citrus Virologists Proceedings.
Castle, W.S., Gottwald, T.R. 2005. Spatio-temporal analysis of tree decline losses among navel orange trees on swingle citrumelo rootstock in two central florida citrus groves. International Organization of Citrus Virologists Proceedings.
Bassanezi, R., Bergamin Filho, A., Amorim, L., Gottwald, T.R. 2005. Spatial and temporal analysis of citrus sudden death in brazil. International Organization of Citrus Virologists Proceedings.
Bassanezi, R., Busato, L., Bergamin-Filho, A., Amorim, L., Gottwald, T.R. 2005. Preliminary spatial pattern analysis of huanglongbing in sao paulo, brazil. International Organization of Citrus Virologists Proceedings.
Freitas-Astua, J., Locali, E., Antonioli-Luizon, R., Kitajima, E., Hilf, M.E., Gottwald, T.R., Machado, M. 2005. Nationwide detection of citrus leprosis virus in brazil using rt-pcr. International Organization of Citrus Virologists Proceedings.
Novelli, V., Freitas-Astua, J., Astua-Monge, G., Carvalho, S., Locali, E., Rodrigues, V., Arrivaben, F., Hilf, M.E., Gottwald, T.R., Machado, M. 2005. Widespread occurrence of an endosymbiont bacterium in brevipalpus phoenicis populations in the southeastern region of brazil. International Organization of Citrus Virologists Proceedings.
Gottwald, T.R. 2005. Conflicting agendas of commercial growers and residential tree owners during canker and plum pox eradication programs. Phytopathology. 95:6S129.
Parker, P.E., Gottwald, T.R., Levy, L., Cook, A.Z. 2005. Development and deployment of a mobile containment greenhouse laboratory (MCGL). Phytopathology. 95:6S80.
Freitas-Astua, J., Locali, E., Antonioli-Luizon, R., Kitajima, E., Hilf, M.E., Gottwald, T.R., Machado, M. 2004. Nationwide detection of citrus leprosis virus in brazil using rt-pcr. International Organization of Citrus Virologists Proceedings.
Novelli, V., Freitas-Astua, J., Astua-Monge, G., Carvalho, S., Locali, E., Rodrigues, V., Arrivaben, F., Hilf, M.E., Gottwald, T.R., Machado, M. 2004. Widespread occurrence of an endosymbiont bacterium in brevipalpus phoenicis populations in the southeastern region of Brazil. International Organization of Citrus Virologists Proceedings.
Gottwald, T.R., Palle, S., Miao, H., Seyran, M., Skaria, M., Da Graca, J. 2004. Assessment of the possibility of natural spread of citrus psorosis disease. International Organization of Citrus Virologists Proceedings.
Gottwald, T.R. 2005. Survival analysis of the spatio-temporal spread of citrus tristeza virus. 9th Biennial Meeting of the Florida Phytopathological Society, 2-4 May, 2005, University of Florida/IFAS, Mid-Florida Research and Education Center, Apopka, FL.
Bassanezi, R.B., Bergamin-Filho, A., Amorim, L., Gottwald, T.R. 2005. Spatial and temporal analysis of citrus sudden death in Brazil. Proceedings of the International Organization of Citrus Virologists.
Bock, Clive, Parker, Paul, Gottwald, Tim R. 2004. The Effect of Simulated Wind-Driven Rain on Duration and Distance of Dispersal of Xanthomonas Axonopodis pv citri from Canker Infected Citrus Trees. Plant Disease. 89:71-80.
Sun, Xiaoan, Stall, R. E., Cubero, J., Gottwald, T. R., Graham, J. H., Dixon, W. N., Schubert, T. S., Chaloux, P. H., Jones, J. B., Stromberg, V. K., Lacy, G. H., Sutton, B. D. 2004. Detection and Characterization of a New Strain of Citrus Canker Bacteria from Key/Mexican Lime (Citrus Aurantifolia) and Alemow (C. Macrophylla) in South Florida. Phytopathology.
Bock, C., Parker, P., Gottwald, T.R. 2004. The effect of wind on dispersal of splash-borne bacteria from canker-infested citrus trees. Phytopathology. 94:S9.
Dallot, S., Gottwald, T., Labonne, G., Quiot, J. B. 2003. Spatial Pattern Analysis of Sharka Disease (PPV-M Strain) in Peach Orchards in Southern France. Phytopathology 93:1543
Gottwald, T.R. 2004. The application of epidemiological analyses of citrus canker for the design of citrus canker eradication procedures in florida. 15th International Plant Protection Congress Proceedings. p. 477.
Dallot, S., Gottwald, T.R., Labonne, G., Quiot, J. 2004. Spread of Sharka disease (PPV-M strain) in peach orchards submitted to roguing in Southern France. Phytopathology. 94:1390-1398.
Bock, C.H., Parker, P., Gottwald, T.R. 2004. The effect of wind speed on dispersal of bacteria from canker-infected citrus trees. Phytopathology. 94:S9.
Gottwald, T.R. 2006. Plum pox - review of PPV epidemiology in North America. European and Mediterranean Plant Protection Organization Bulletin. 36:269-286.
Gottwald, T. R. 2003. Overview of Science/Legal Conflicts Raised by Citrus Canker Research and Eradication. American Phytopathological Society Annual Meeting.
Mondal, S. N., Gottwald, T. R., Timmer, L. W. 2003. Environmental Factors Affecting the Release and Dispersal of Ascospores of Mycosphaerella Citri. Phytopathology.
Dallot, Sylvie, Gottwald, Tim R., Labonne, Gerard, Quiot, Jean-Bernard. 2003. Spatial Analysis of the Sharka Disease (PPV-M) Within Peach Orchards of Southern France Investigated at Various Hierarchical Scales. Phytopathology.
Verniere, C. J., Gottwald, T. R., Pruvost, O. 2003. Disease Development and Symptom Expression of Xanthomonas Axonopodis pv. citri in Various Citrus Plant Tissues. Phytopathology 93:832-843
Parker, P. E., Bock, C. H., Gottwald, T. R. 2003. Techniques to Sample Citrus Canker Bacteria (Xanthomonas Axonopodis pv citri) in Windblown Spray. Phytopathology
Gottwald, T., Villalobos, W., Rivera, C., 2003. Comparative Epidemiology of CTV in Plantings of Various Citrus Species in Costa Rica and Long Distance Spread by the Brown Citrus Aphid. Proceedings of the 15th Conference of the International Organization of Citrus Virologists, 102-116
Yokomi, R. K., Polek, M., Satar, S., Gottwald, T. R. 2003. A Sampling Protocol To Optimize Locating Citrus Tristeza Virus Reservoirs. International Organization of Citrus Virologist Proceedings.
Bassanezi, R. B., Bergamin-Filho, A., Amorim, L., Gimenes-Fernandes, N., Gottwald, T. R. 2003. Spatial and Temporal Analysis of Citrus Sudden Death as a Tool to Generate Hypotheses Concerning its Etiology. Phytopathology.
Gottwald, T., Garnsey, S. M., Riley, T. D., 2002. Latency of Systemic Infection in Young Field-grown Sweet Orange Trees Following Graft-inoculation with Citrus Tristeza Virus. Proceedings of the 15th Conference of the International Organization of Citrus Virologists
Gottwald, T., Polek, M., Riley, K. M., 2002. History, Present Incidence and Spatial Distribution of Citrus Tristeza Virus in the California Central Valley. Proceedings of the 15th Conference of the International Organization of Citrus Virologists, 83-94.
Gottwald, T., Abreu-Rodriguez, E., Yokomi, R., Stansly, P., Riley, T. 2002. Effect of Chemical of Aphid Vectors Control and Cross-Protection on the Increase and Spread of CTV. Proceedings of the 15th Conference of the International Organization of Citrus Virologists, p.117-130.