Subtropical Plant Pathology Research : People & Places

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Timothy R. Gottwald

Research Leader

Publications

The epidemiological significance of post-packinghouse survival of Xanthomonas citri ssp. citri for dissemination of Asiatic citrus canker via infected fruit - (Peer Reviewed Journal) - (01-Feb-09)

Genome sequence of Candidatus Liberibacter asiaticus, the casual agent of citrus huanglongbing (greening) - (Abstract) - (01-Jun-08)

Visual rating and the use of image analysis for assessing different symptoms of citrus canker on grapefruit leaves - (Peer Reviewed Journal)

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.

Characteristics of the perception of different severity measures of citrus canker and the relations between the various symptom types - (Peer Reviewed Journal)

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.

Science-based Regulatory Decisions. - (Abstract)

Gottwald, T.R. 2008. Science-based Regulatory Decisions.. Phytopathology. 98:S196

Constructing the effect of alternative intervention strategies on historic epidemics - (Peer Reviewed Journal)

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

Automating the assessment of citrus canker symptoms with image analysis - (Abstract)

Cook, A., Bock, C.H., Parker, P.E., Gottwald, T.R. 2008. Automating the assessment of citrus canker symptoms with image analysis. Phytopathology. 98:S41

Analysis of fire blight shott infection epidemics on apple - (Peer Reviewed Journal)

Biggs, A., Turechek, W., Gottwald, T.R. 2008. Analysis of fire blight shott infection epidemics on apple. Plant Disease. 92:1349-1356.

Guava SSR Analysis: Diversity Assessment and Similarity to Accessions Associated with Reducing Citrus Greening in Vietnam - (Abstract)

Stover, E.W., Gottwald, T.R., Hall, D.G., Aradhya, M.K., Zee, F.T., Crane, J. 2008. Guava SSR Analysis: Diversity Assessment and Similarity to Accessions Associated with Reducing Citrus Greening in Vietnam. HortScience. 43:1119.

Seed transmission of Candidatus Liberibacter asiaticus in periwinkle and dodder resulted in low bacterial titer and very mild disease in periwinkle - (Abstract) - (13-Mar-08)

A unique disease phenotype -`yellow shoot without blotchy mottle¿ was associated with a low titer of Candidatus Liberibacter asiaticus in Florida - (Abstract) - (13-Mar-08)

First Report of Dodder Transmission of Candidatus Liberibacter asiaticus to Tomato (Lycopersicon esculentum) - (Peer Reviewed Journal)

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.

Copper Sprays and Windbreaks for Control of Citrus Canker on Young Orange Trees in Southern Brazil - (Peer Reviewed Journal)

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.

Constructing the effect of alternative intervention strategies on historic epidemics - (Other)

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

Citrus Canker and Citrus Huanglongbing, Two Exotic Bacterial Diseases Threatening the Citrus Industries of the Western Hemisphere - (Peer Reviewed Journal)

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.

Influence of the Brevipalpus phoenicis endosymbiont Cardinium sp. in the transmission of Citrus leprosis virus. - (Abstract) - (10-Aug-07)

Intercropping of citrus and guava trees for management of Huanglongbing - (Abstract)

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.

Citrus Huanglongbing: The Pathogen and Its Impact - (Peer Reviewed Journal)

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.

Large-scale surveys for multiple pest species; the search for citrus canker and huanglongbing in Florida - (Abstract)

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.

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 - (Peer Reviewed Journal)

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.

Spatial Pattern Analysis of Citrus Canker Infected Plantings in São Paulo Brazil and Implication of the Asian Leafminer on the Potential Dispersal Processes - (Peer Reviewed Journal)

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.

Influence of the Storage Period and Number of Individuals on the Detection of False Spider Mite Endosymbionts - (Peer Reviewed Journal)

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.

Concepts in Huanglongbing Epidemiology - (Proceedings/Symposium)

Gottwald, T.R., Bergamin Filho, A., Bassanezi, R., Irey, M., Zhao, X., Aubert, B. 2007. Concepts in Huanglongbing Epidemiology. Symposium Proceedings.

Concepts in Huanglongbing Epidemiology - (Abstract)

Gottwald, T.R., Bergamin Filho, A., Bassanezi, R., Irey, M., Zhao, X., Aubert, B. 2006. Concepts in Huanglongbing Epidemiology. Meeting Abstract.

Prospects for Control of Citrus Canker with Novel Chemical Compounds - (Peer Reviewed Journal) - (07-Aug-06)

Florida actions toward HLB control - (Proceedings/Symposium)

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.

Huanglongbing: The dragon arrives in the USA - (Proceedings/Symposium)

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.

Huanglongbing Epidemiology: An international perspective - (Proceedings/Symposium)

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.

Sensitivity of Pcr-Based Methods for Detection of Asiatic Strain of the Huanglongbing Bacterium in Symptomatic and Asymptomatic Citrus Tissues - (Proceedings/Symposium)

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.

Epidemiology of Huanglongbing in Sao Paulo - (Abstract)

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.

Post-Hurricane Analysis of Citrus Canker Spread and Progress Towards the Development of a Predictive Model for Future Weather Related Spread - (Peer Reviewed Journal)

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.

Linkages between early detection and early response to invasive pathogens - (Peer Reviewed Journal)

Gottwald, T.R. 2006. Linkages between early detection and early response to invasive pathogens. Phytopathology. 96(6):(Supplement)S1144

Incorporation of Distance-of-Spread Calculations into a Weather-Based Model Describing Disease Distribution after Severe Weather Events - (Abstract)

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.

Comparison of Visual Assessment to Polymerase Chain Reaction Assay Testing to Estimate the Incidence of the Huanglongbing Pathogen in Commercial Plantings in Florida - (Peer Reviewed Journal)

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.

Repeatability and Comparision of Image Analysis and Visual Assessment for Disease Assessment of Citrus Canker - (Peer Reviewed Journal)

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.

Factors affecting infection of citrus with Xanthomonas axonopodis pv citri. - (Peer Reviewed Journal)

Bock, C., Parker, P., Cook, A., Gottwald, T.R. 2006. Factors affecting infection of citrus with Xanthomonas axonopodis pv citri.. Phytopathology. 96(6):Supplement S14.

The decline in quantity of bacteria of Xanthomonas axonopodis pv citri dispersed from canker-infected citrus plants during wind/rain events - (Peer Reviewed Journal)

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.

Screening Citrus Germplasm for Resistance to Xanthormonos Axonopodis PV.CTRI - (Abstract)

Mccollum, T.G., Bowman, K.D., Gottwald, T.R. 2006. Screening citrus germplasm for resistance to xanthormonos axonopodis pv.ctri.[abstract]HortScience. 41:1048-1049.

Rt-Pcr Detection of Citrus Leprosis Virus in Shrubs and Weed Plants Infected Through Brevipalpus Phoenicis (Acari: Tenuipalpidae) - (Proceedings/Symposium)

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.

Influência da presença de endossimbionte em Brevipalpus phoenicis na aquisição e transmissão do vírus da leprose dos citros. - (Peer Reviewed Journal)

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.

Prevalência DE Endossimbiontes Cardinium Em Populações DE Ácaros Brevipalpus Phoenicis DE Diferentes Regiões Brasileiras. - (Proceedings/Symposium)

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.

Screening Citrus Germplasm for Resistance to Xanthomonas Anonopodis Pv. Citri - (Proceedings/Symposium)

Mccollum, T.G., Bowman, K.D., Gottwald, T.R. 2006. Screening citrus germplasm for resistance to xanthomonas anonopodis pv. citri. Hortscience Proceedings.41:1048-1049

Avaliação Da Presença DE Endossimbiontes Cardinium Em Diferentes Espécies DE Artrópodes. - (Proceedings/Symposium)

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.

O Acaro Vetor Da Leprose Dos Citros (Brevipalpus Phoenicis)e a Interacao Com Endossimbiontes - (Peer Reviewed Journal)

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.

Aps Press Online Lessons in Plant Pathology - Citrus Canker - (Peer Reviewed Journal)

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)

Post-Hurricane Analysis of Citrus Canker Spread and Progress Towards the Development of a Predictive Model for Future Weather Related Spread - (Proceedings/Symposium)

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.

Screening Citrus Germplasm for Resistance to Xanthomonas Axonopodis Pv. Citri - (Proceedings/Symposium)

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.

Spatial Pattern Analysis of Citrus Canker Infected Plantings in Sao Paulo Brazil and Implication of the Asian Leafminer on Potential Dispersal Processes - (Proceedings/Symposium)

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.

Huanglongbing Epidemiology: Tracking the Dragon Through Time and Space - (Proceedings/Symposium)

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.

Citrus Canker: Doing Battle with the Beast for Nearly a Century - (Abstract)

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.

Estimating the Increase and Spread of Citrus Canker Caused by the Interaction of Pedestrian Versus Catastrophic Weather Events, Humans, and Bad Luck - (Proceedings/Symposium)

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.

Post-Hurricane Analysis of Citrus Canker Spread and Progress Towards the Development of a Predictive Model for Future Weather Related Spread - (Proceedings/Symposium)

Construction and Deployment of a Mobile Containment Greenhouse/laboratory - (Proceedings/Symposium)

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.

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/Symposium)

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.

Using Pcr for Detection and Quantification of Xanthomonas Axonopodis Pv Citri in Wind Driven Splash - (Proceedings/Symposium)

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.

The Change in Quantity of Bacteria of Xanthomonas Axonopodis Pv Citri Dispersed Down Wind from Canker-Infected Grapefruit Trees During a Wind/rain Event - (Proceedings/Symposium)

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.

Wind Speed Effects on the Dispersal of Xanthomonas Axonopodis Pv Citri and Infection of Grapefruit Leaves - (Proceedings/Symposium)

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.

Distance of Spread of Asian Citrus Canker from Source of Infection in Commercial Plantings in Sao Paulo, Brazil - (Proceedings/Symposium)

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.

Spatial Distribution of Huanglongbing Symptomatic Trees in Citrus Groves in Sao Paulo, Brazil - (Proceedings/Symposium)

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.

Epidemiology, Management and Effect on Yield of Citrus Canker under Endemic Conditions in Parana, Brazil - (Proceedings/Symposium)

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.

Temporal and Spatial Epidemiology of Phytophthora Root Rot in Fraser Fir Plantations - (Peer Reviewed Journal)

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.

Comparison of Techniques to Sample Citrus Canker Bacteria (Xanthomonus Axonopodis Pv. Citri) in Wind-Blown Spray - (Peer Reviewed Journal)

Parker, P., Bock, C., Gottwald, T.R. 2005. Comparison of techniques to sample citrus canker bacteria (xanthomonus axonopodis pv. citri) in wind-blown spray. Plant Disease. 89:1324-1330.

Long Distance Spread of Citrus Canker Related to Hurricanes and Tropical Storms - (Abstract)

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.

Predicting the Risk of Infection in a Citrus Tristeza Virus Epidemic and Testing for the Intensity of Virus Competition with Survival Analysis - (Abstract)

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.

Conflicting Agendas of Commercial Growers and Residential Tree Owners During Canker and Plum Pox Eradication Programs - (Peer Reviewed Journal)

Gottwald, T.R. 2005. Conflicting agendas of commercial growers and residential tree owners during canker and plum pox eradication programs. Phytopathology. 95(6):S129.

Detecting and Quantifying Xanthomonas Axonopodis Pv Citri in Wind Driven Splash - (Abstract)

Bock, C.H., Parker, P.E., Gottwald, T.R., Mavrodieva, V.A., Levy, L. 2005. Detecting and quantifying Xanthomonas axonopodis pv. citri in wind driven splash. Phytopathology. 95:6S11.

Image Analysis Versus Visual Assessment of Incidence and Severity of Citrus Canker Symptoms - (Abstract)

Bock, C.H., Parker, P.E., Cook, A.Z., Gottwald, T.R. 2005. Image analysis versus visual assessment of incidence and severity of citrus canker symptoms. Phytopathology. 95:6S11.

The Effect of Wind Speed on the Dispersal Plume of Bacteria Downwind from Canker-Infected Grapefruit Trees - (Abstract)

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.

Spatial-Temporal Dynamics of Citrus Variegated Chlorosis in Sao Paulo State, Brazil - (Proceedings/Symposium)

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.

Reliability of Real-Time Pcr for Detecting and Quantifying Xanthomonas Axonopodis Pv Citri in Wind Driven Splash - (Abstract)

Bock, C., Mavrodieva, V., Parker, P., Levy, L., Gottwald, T.R. 2005. Reliability of real-time pcr for detecting and quantifying xanthomonas axonopodis pv citri in wind driven splash. Phytopathology. 95(6):S11.

Using Survival Analysis to Predict the Risk of Infection in a Ctv Epidemic - (Peer Reviewed Journal)

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.

Assessment of the Possibility of Natural Spread of Citrus Psorosis Disease - (Peer Reviewed Journal)

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.

Spatio-Temporal Analysis of Tree Decline Losses among Navel Orange Trees on Swingle Citrumelo Rootstock in Two Central Florida Citrus Groves - (Peer Reviewed Journal)

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.

Spatial and Temporal Analysis of Citrus Sudden Death in Brazil - (Peer Reviewed Journal)

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.

Preliminary Spatial Pattern Analysis of Huanglongbing in Sao Paulo, Brazil - (Peer Reviewed Journal)

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.

Nationwide Detection of Citrus Leprosis Virus in Brazil Using Rt-Pcr - (Peer Reviewed Journal)

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.

Widespread Occurrence of An Endosymbiont Bacterium in Brevipalpus Phoenicis Populations in the Southeastern Region of Brazil - (Peer Reviewed Journal)

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.

The Effect of Hurricanes and Tropical Storms on Long Distance Spread of Citrus Canker - (Abstract)

Gottwald, T.R., Riley, T.D. 2005. The effect of hurricanes and tropical storms on long distance spread of citrus canker. Phytopathology. 95:6S36.

Conflicting Agendas of Commercial Growers and Residential Tree Owners During Canker and Plum Pox Eradication Programs - (Abstract)

Gottwald, T.R. 2005. Conflicting agendas of commercial growers and residential tree owners during canker and plum pox eradication programs. Phytopathology. 95:6S129.

Development and Deployment of a Mobile Containment Greenhouse Laboratory (Mcgl) - (Abstract)

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.

Development and Deployment of a Mobile Containment Greenhouse Laboratory (Mcgl) - (Abstract)

Parker, P., Gottwald, T.R., Levy, L., Cook, A. 2006. Development and deployment of a mobile containment greenhouse laboratory (mcgl). Phytopathology.

Detection of Clo (Cytophaga-Like Organism) Endosymbionts in Adults and Eggs of Citrus Leprosis Vectors, Brevipalpus Phoenicis and B. Obovatus - (Abstract)

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. Detection of clo (cytophaga-like organism) endosymbionts in adults and eggs of citrus leprosis vectors, brevipalpus phoenicis and b. obovatus. Meeting Abstract.

Nationwide Detection of Citrus Leprosis Virus in Brazil Using Rt-Pcr - (Proceedings/Symposium)

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.

Widespread Occurrence of An Endosymbiont Bacterium in Brevipalpus Phoenicis Populations in the Southeastern Region of Brazil - (Proceedings/Symposium)

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.

Assessment of the Possibility of Natural Spread of Citrus Psorosis Disease - (Abstract)

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.

Using Survival Analysis to Predict the Risk of Infection in a Ctv Epidemic - (Abstract)

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.

Spatio-Temporal Analysis of Tree Decline Losses among Navel Orange Trees on Swingle Citrumelo Rootstock in Two Central Florida Citrus Groves - (Abstract) - (07-Nov-04)

Spatial and Temporal Analyses of Citrus Sudden Death in Brazil - (Peer Reviewed Journal)

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.

Preliminary Spatial Pattern Analysis of Huanglongbing in Sao Paulo, Brazil - (Abstract) - (07-Nov-04)

The Effect of Simulated Wind-Driven Rain on Duration and Distance of Dispersal of Xanthomonas Axonopodis Pv Citri from Canker Infected Citrus Trees - (Peer Reviewed Journal)

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.

Detection and Characterization of a New Strain of Citrus Canker Bacteria from Key/mexican Lime (Citrus Aurantiifolia) and Alemow (C. Macrophylla) in South Florida - (Abstract)

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.

The Effect of Wind on Dispersal of Splash-Borne Bacteria from Canker-Infested Citrus Trees - (Abstract)

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.

The Application of Epidemiological Analyses of Citrus Canker for the Design of Citrus Canker Eradication Procedures in Florida - (Abstract)

Gottwald, T., 2004. The Application of Epidemiological Analyses of Citrus Canker for the Design of Citrus Canker Eradication Procedures in Florida.

Xanthomonas Axonopodis Pv. Citri: Factors Affecting Successful Eradication of Citrus Canker - (Peer Reviewed Journal)

Graham, J.H., Gottwald, T.R., Cubero, J., Achor, D. 2004. Xanthomonas axonopodis pv. citri: factors affecting successful eradication of citrus canker. Molecular Plant Pathology. 5: 1-15

Spatial Pattern Analysis of Sharka Disease (Ppv-M Strain) in Peach Orchards in Southern France - (Abstract)

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

An Overview of the Epidemiology of Citrus Tristeza Virus - (Abstract)

Gottwald, T.R. 2004. An overview of the epidemiology of citrus tristeza virus. Phytopathology. 94:S131.

Mitigating the Post-Introduction Impacts of New and Emerging Agricultural Pathogens - (Abstract)

Gottwald, T.R., Kaplan, D. 2004. Mitigating the post-introduction impacts of new and emerging agricultural pathogens. Phytopathology. 94:S130.

The Application of Epidemiological Analyses of Citrus Canker for the Design of Citrus Canker Eradication Procedures in Florida - (Peer Reviewed Journal)

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.

Spread of Sharka Disease (Ppv-M Strain) in Peach Orchards Submitted to Roguing in Southern France - (Abstract)

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.

The Effect of Wind Speed on Dispersal of Bacteria from Canker-Infected Citrus Trees - (Abstract)

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.

Strategies of Sampling for Detection - (Abstract)

Hughes, G., Madden, L., Gottwald, T.R. 2004. Strategies of sampling for detection. Phytopathology. 94:S137.

Citrus Canker Symptom Assessment Using Image Analysis - (Abstract)

Parker, P., Bock, C., Gottwald, T.R. 2004. Citrus canker symptom assessment using image analysis. Phytopathology. 94:S81.

Huanglongbing (Citrus Greening) Epidemiology - (Book/Chapter) - (04-Aug-03)

Plum Pox - Review of Ppv Epidemiology in North America - (Book/Chapter)

Gottwald, T.R. 2006. Plum pox - review of PPV epidemiology in North America. European and Mediterranean Plant Protection Organization Bulletin. 36:269-286.

Overview of Science/legal Conflicts Raised by Citrus Canker Research and Eradication - (Abstract)

Gottwald, T. R. 2003. Overview of Science/Legal Conflicts Raised by Citrus Canker Research and Eradication. American Phytopathological Society Annual Meeting.

Environmental Factors Affecting the Release and Dispersal of Ascospores of Mycosphaerella Citri - (Peer Reviewed Journal)

Mondal, S. N., Gottwald, T. R., Timmer, L. W. 2003. Environmental Factors Affecting the Release and Dispersal of Ascospores of Mycosphaerella Citri. Phytopathology.

Spatial Analysis of the Sharka Disease (Ppv-M) Within Peach Orchards of Southern France Investigated at Various Hierarchical Scales - (Peer Reviewed Journal)

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.

Disease Development and Symptom Expression of Xanthomonas Axonopodis Pv. Citri in Various Citrus Plant Tissues. - (Peer Reviewed Journal)

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

Techniques to Sample Citrus Canker Bacteria (Xanthomonas Axonopodis Pv. Citri)in Windblown Spray - (Abstract)

Parker, P. E., Bock, C. H., Gottwald, T. R. 2003. Techniques to Sample Citrus Canker Bacteria (Xanthomonas Axonopodis pv citri) in Windblown Spray. Phytopathology

Dinamica Espacial Da Clorose Variegada Dos Citros Em Tres Regioes Do Estado DE Sao Paulo - (Peer Reviewed Journal)

Laranjeira, F.F., Bergamin-Filho, A., Amorim, L., Gottwald, T.R. 2004. Fitopatologia Brasileira. 29:056-065.

Comparative Epidemiology of Ctv in Plantings of Various Citrus Species in Costa Rica and Long Distance Spread by the Brown Citrus Aphid - (Peer Reviewed Journal)

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

A Sampling Protocol to Optimize Locating Citrus Tristeza Virus Reservoirs - (Peer Reviewed Journal)

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.

Spatial and Temporal Analysis of Citrus Sudden Death As a Tool to Generate Hypotheses Concerning Its Etiology - (Abstract)

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.

Citrus Canker: the Pathogen and Its Impact - (Peer Reviewed Journal)

Gottwald, T. 2002. Citrus Canker: The Pathogen and Its Impact. Plant Health Progress.

Citrus Canker: the Pathogen and Its Impact - (Review Article)

Gottwald, T. 2002. Citrus Canker: The Pathogen and Its Impact. APSNET Plant Pathology Online.

Citrus Canker: Plant Pathology Versus Public Policy - (Peer Reviewed Journal)

Gottwald, T. 2002. Citrus Canker: Plant Pathology Versus Public Policy, Phytopathology.

Citrus Canker: the Pathogen and Its Impact - (Other)

Gottwald, T., 2002. Citrus Canker: The Pathogen and Its Impact. APSNET Plant Pathology Online

Latency of Systemic Infection in Young Field-Grown Sweet Orange Trees Following Graft-Inoculation with Citrus Tristeza Virus - (Peer Reviewed Journal)

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

History, Present Incidence, and Spatial Distribution of Citrus Tristeza Virus in the California Central Valley - (Peer Reviewed Journal)

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.

Effects of Chemical of Aphid Vectors Control and Cross-Protection on the Increase and Spread of Ctv - (Peer Reviewed Journal)

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.

Last Modified: 02/05/2009

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