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 Temperate Tree Fruit and Vegetable Research: Wapato, WA
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Kylie Dale Swisher Grimm    Research Plant Pathologist /ARSUserFiles/47037/Swisher.jpg **Education:** BS Whitworth UniversityPhD University of Arizona **Research Interests:** Understanding new and emerging diseases of potato. **Aims:** Identification and characterization of novel pathogens found in the field, development of new techniques to improve diagnostics of various pathogens in potatoes and insect vectors and use of greenhouse or field trials to explore the pathogen-host-vector relationship. **Background:** The Northwestern United States accounts for over 50% of the total US potato production each year. Growers in this region are continually monitoring their crop for damage caused by pathogens that can be soil-borne or insect-vectored. Unfortunately, the correlation of specific pathogens to potato disease symptoms can be complicated by pathogens inducing similar host responses and symptomology. Combating these pathogens generally requires a multi-faceted approach that focuses on overall soil health, genetic diversity that promotes pathogen insensitivities, and insect pest management strategies that control important insect pests. Plant and insect diagnostics provide key information to growers each year about pathogen prevalence and insect population dynamics. Therefore, improving diagnostic techniques and improving our understanding of disease epidemiology of important pathogens can save time and money for the growers. **Approach:** Several methods will be required to determine the pathogenic nature of specific disease symptoms, including the use of graft transmission, molecular detection tools, and novel next generation sequencing analyses. Additionally, development of novel techniques and protocols is important for co-detection of multiple pathogens capable of inducing similar symptoms with the potato plant. The identification of unknown pathogens, or a complex of pathogens, can be an exceptionally difficult challenge, so rapid development and implementation of various techniques necessary to identify and report pathogenic issues that arise in potato is important for the timely identification and dissemination of results to the industry. **Laboratory Personnel** Rich Quick, Biological Science Technician Stacey Pettit, Biological Science Technician  ProjectsPotato Germplasm Development for Improved Sustainability, Disease Resistance, Nutrition, and QualityIn-House Appropriated (D)Accession Number:444045Identification of new ‘Candidatus Liberibacter solanacearum’ Haplotypes and Their Psyllid Vectors and Plant Hosts in the Northwest United StatesInteragency Reimbursable Agreement (I)Accession Number:444424Development Of Sustainable System-Based Management Strategies For Two Vector-Borne, Tuber Necrotic Viruses In PotatoReimbursable Cooperative Agreement (R)Accession Number:439623Areawide Management of Insect Vectors in Columbia Basin Vegetable and Seed CropsNon-Assistance Cooperative Agreement (S)Accession Number:436896Understanding Differences in P. allius Populations from North Dakota and Washington State, and their Role in TRV Transmission in PotatoNon-Assistance Cooperative Agreement (S)Accession Number:438311Profiling Pathogenic Genome Variation in Novel Haplotypes of 'Candidatus Liberibacter Solanacearum' Isolated from Psyllid Species from PotatoNon-Assistance Cooperative Agreement (S)Accession Number:440856Green Peach Aphid–Plant Interactions in Southern IdahoNon-Assistance Cooperative Agreement (S)Accession Number:442864Tools for the Accurate Diagnosis of Two Tuber Necrotic Viruses, Potato Mop-Top Virus, and Tobacco Rattle VirusNon-Assistance Cooperative Agreement (S)Accession Number:443805Exploring Pathogenicity Factors of Phytoplasma Causing Potato Purple Top Disease in the Northwestern U.S.Non-Assistance Cooperative Agreement (S)Accession Number:444649Identification of New ‘Ca. L. solanacearum’ Plant Pathogens and Their Psyllid Vectors and Plant Hosts in Oregon State.Non-Assistance Cooperative Agreement (S)Accession Number:444947Identification of New ‘Ca. L. solanacearum’ Plant Pathogens and Their Psyllid Vectors and Plant Hosts in Washington State.Non-Assistance Cooperative Agreement (S)Accession Number:444950Regional Sampling Network for Insect Pests of Potato in the Columbia Basin of WATrust Fund Cooperative Agreement (T)Accession Number:446220Pyramiding of Potato Virus Y and Columbia Root-Knot Nematode Resistances using Greenhouse and Molecular Marker ScreeningTrust Fund Cooperative Agreement (T)Accession Number:444422Support for the Investigation of Emerging and Persistent Potato Diseases in the NorthwestTrust Fund Cooperative Agreement (T)Accession Number:440527  ARS News ArticlesNo news articles listed for this employee.  Publications(Clicking on the reprint iconReprint Icon  will take you to the publication reprint.)Seasonal and lifecycle changes in behavior affect the trapping efficiency of an insect vector, Circulifer tenellus (Hemiptera: Cicadellidae)-(Peer Reviewed Journal) Foutz, J.J., Cooper, W.R., Swisher Grimm, K.D., Crowder, D. 2024. Seasonal and lifecycle changes in behavior affect the trapping efficiency of an insect vector, Circulifer tenellus (Hemiptera: Cicadellidae). Annals of the Entomological Society of America. https://doi.org/10.1093/aesa/saae011.Improving our understanding of potato mop-top virus in the northwest U.S-(Trade Journal) Swisher Grimm, K.D., Quick, R.A., Cimrhakl, L.L., Feldman, M.J., Pavek, M. 2024. Improving our understanding of potato mop-top virus in the northwest U.S. Potato Grower. January 2024.Acquisition and transmission of “Candidatus Liberibacter solanacearum” differs among Wolbachia-infected and uninfected haplotypes of Bactericera cockerelli-(Peer Reviewed Journal) Cooper, W.R., Swisher Grimm, K.D., Angelella, G.M., Mustafa, T. 2023. Acquisition and transmission of “Candidatus Liberibacter solanacearum” differs among Wolbachia-infected and uninfected haplotypes of Bactericera cockerelli. Plant Disease. 107:2440-2445. https://doi.org/10.1094/PDIS-11-22-2701-RE.Beet leafhopper associated pathogens in the Columbia Basin of Washington-(Trade Journal) Swisher Grimm, K.D., Angelella, G.M., Cooper, W.R., Gorman, C., Crowder, D., Wohleb, C. 2023. Beet leafhopper associated pathogens in the Columbia Basin of Washington. Carrot Country. 31(2):8-11.Potato purple top in the Columbia Basin: Beet leafhopper and BLTVA pathogen prevalence-(Trade Journal) Swisher Grimm, K.D., Gorman, C., Crowder, D., Wohleb, C. 2023. Potato purple top in the Columbia Basin: Beet leafhopper and BLTVA pathogen prevalence. Potato Country USA. May-June 2023;6-7.Bacterial endosymbionts identified from leafhopper (Hemiptera: Cicadellidae) vectors of phytoplasmas-(Peer Reviewed Journal) Cooper, W.R., Walker III, W.B., Angelella, G.M., Swisher Grimm, K.D., Foutz, J.J., Harper, S.J., Nottingham, L.B., Northfield, T.D., Wohleb, C.H., Stausbaugh, C.A. 2023. Bacterial endosymbionts identified from leafhopper (Hemiptera: Cicadellidae) vectors of phytoplasmas. Environmental Entomology. 52(2):243-353. https://doi.org/10.1093/ee/nvad015.Beet leafhopper transmitted pathogens in the Columbia basin-(Abstract Only) Swisher Grimm, K.D. 2023. Beet leafhopper transmitted pathogens in the Columbia basin. Meeting Abstract. https://www.pnva.org/speaker-presentations.html.Development of a loop-mediated isothermal amplification (LAMP) method to detect the potato zebra chip pathogen ‘Candidatus Liberibacter solanacearum’ (Lso) and differentiate haplotypes A and B-(Peer Reviewed Journal) Jiang, J., Feindel, W., Swisher Grimm, K.D., Harding, M., Feindel, D., Bajema, S., Feng, J. 2022. Development of a loop-mediated isothermal amplification (LAMP) method to detect the potato zebra chip pathogen ‘Candidatus Liberibacter solanacearum’ (Lso) and differentiate haplotypes A and B. Plant Disease. 107(6):1697-1702. https://doi.org/10.1094/PDIS-09-22-2258-SR.Identification of three new ‘Candidatus Liberibacter solanacearum’ haplotypes in four psyllid species (Hemiptera: Psylloidea)-(Peer Reviewed Journal) Swisher Grimm, K.D., Horton, D.R., Lewis, T.M., Garczynski, S., Jensen, A., Charlton, B. 2022. Identification of three new ‘Candidatus Liberibacter solanacearum’ haplotypes in four psyllid species (Hemiptera: Psylloidea). Scientific Reports. 12. Article 20618. https://doi.org/10.1038/s41598-022-24032-9.Detection of potato mop-top virus in potato seed lots entering Washington State-(Peer Reviewed Journal) Swisher Grimm, K.D., Quick, R.A., Cimrhakl, L.L., Brown, C., Pavek, M.J. 2022. Detection of potato mop-top virus in potato seed lots entering Washington State. American Journal of Potato Research. 99:390-394. https://doi.org/10.1007/s12230-022-09889-w.Understanding Tobacco rattle virus epidemiology in potato through basic and applied assays-(Abstract Only) Swisher Grimm, K.D., Feldman, M.J. 2022. Understanding Tobacco rattle virus epidemiology in potato through basic and applied assays. Meeting Abstract. https://doi.org/10.1094/PHYTO-112-8-S2.22.Potato mop-top virus in Washington seed lots-(Abstract Only)Bacterial endosymbionts of Bactericera maculipennis and three mitochondrial haplotypes of B. cockerelli (Hemiptera: Psylloidea: Triozidae)-(Peer Reviewed Journal) Cooper, W.R., Horton, D.R., Swisher Grimm, K.D., Krey, K., Wildung, M.R. 2021. Bacterial endosymbionts of Bactericera maculipennis and three mitochondrial haplotypes of B. cockerelli (Hemiptera: Psylloidea: Triozidae). Environmental Entomology. 51(1):94-107. https://doi.org/10.1093/ee/nvab133.Comparative phylogenomic analysis reveals evolutionary genomic changes and novel toxin families in endophytic Liberibacter pathogens-(Peer Reviewed Journal) Tan, Y., Wang, C., Schneider, T., Li, H., de Souza, R., Tang, X., Swisher Grimm, K.D., Hsieh, T., Wang, X., Li, X., Zhang, D. 2021. Comparative phylogenomic analysis reveals evolutionary genomic changes and novel toxin families in endophytic Liberibacter pathogens. Microbiology Spectrum. 9(2). Article e00509-21. https://doi.org/10.1128/Spectrum.00509-21.First report of curly top of Coriandrum sativum caused by beet curly top virus in the Columbia Basin of Washington State-(Peer Reviewed Journal) Swisher Grimm, K.D., Crosslin, J.C., Cooper, W.R., Frost, K.E., du Toit, L.J., Wohleb, C.H. 2021. First report of curly top of Coriandrum sativum L. caused by beet curly top virus in the Columbia Basin of Washington State. Plant Disease. 105(10):3313. https://doi.org/10.1094/PDIS-01-21-0041-PDN.KASP markers reveal established and novel sources of resistance to Pea seed-borne mosaic virus in pea genetic resources-(Peer Reviewed Journal) Swisher Grimm, K.D., Porter, L.D. 2021. KASP markers reveal established and novel sources of resistance to Pea seed-borne mosaic virus in pea genetic resources. Plant Disease. https://doi.org/10.1094/PDIS-09-20-1917-RE.KASP markers reveal established and novel sources of resistance to Pea seedborne mosaic virus in pea genetic resources-(Peer Reviewed Journal) Swisher Grimm, K.D., Porter, L.D. 2021. KASP markers reveal established and novel sources of resistance to Pea seedborne mosaic virus in pea genetic resources. Plant Disease. 105(9):2503-2508. https://doi.org/10.1094/PDIS-09-20-1917-RE.Seasonal population dynamics of potato psyllid (Hemiptera: Triozidae) in the Columbia River Basin-(Peer Reviewed Journal) Cohen, A.L., Wohleb, C.H., Rondon, S., Swisher Grimm, K.D., Esquivel, I., Munyaneza, J.E., Jones, V., Crowder, D.W. 2020. Seasonal population dynamics of potato psyllid (Hemiptera: Triozidae) in the Columbia River Basin. Environmental Entomology. 49(4):974-982. https://doi.org/10.1093/ee/nvaa068.Development and validation of KASP markers for the identification of Pea seedborne mosaic virus pathotype P1 resistance in Pisum sativum-(Peer Reviewed Journal) Swisher Grimm, K.D., Porter, L.D. 2020. Development and validation of KASP markers for the identification of Pea seedborne mosaic virus pathotype P1 resistance in Pisum sativum. Plant Disease. 106(6):1824-1830. https://doi.org/10.1094/PDIS-09-19-1920-RE.Growth and yield performance of Solanum tuberosum grown from seed potatoes infected with ‘Candidatus Liberibacter solanacearum’ haplotypes A and B-(Peer Reviewed Journal) Swisher Grimm, K.D., Mustafa, T., Cooper, W.R., Munyaneza, J.E. 2020. Growth and yield performance of Solanum tuberosum grown from seed potatoes infected with ‘Candidatus Liberibacter solanacearum’ haplotypes A and B. Plant Disease. 104:688-693. https://doi.org/10.1094/PDIS-05-19-1125-RE.Identification of new ‘Candidatus Liberibacter solanacearum’ haplotypes in Solanum tuberosum and psyllid family Aphalaridae in Klamath Basin, Oregon-(Abstract Only) Swisher Grimm, K.D., Garczynski, S.F., Horton, D.R., Charlton, B.A. 2019. Identification of new ‘Candidatus Liberibacter solanacearum’ haplotypes in Solanum tuberosum and psyllid family Aphalaridae in Klamath Basin, Oregon. Phytopathology. 109:S.119-120.Studies on the mysterious foliar damage in Northwest potato in recent years-(Trade Journal) Swisher Grimm, K.D., Waters, T., Wohleb, C. 2019. Studies on the mysterious foliar damage in Northwest potato in recent years. Potato Progress. 19:1-5.Columbia Basin mystery disease Studies on the recent mysterious foliar damage seen in potato across the Columbia Basin-(Trade Journal) Swisher Grimm, K.D., Waters, T., Wohleb, C. 2019. Columbia Basin mystery disease Studies on the recent mysterious foliar damage seen in potato across the Columbia Basin. Potato Country USA. 35:24-26.2019.Stubby root nematodes and associated corky ringspot disease-(Trade Journal) Fu, Z., Sathuvalli, S., Swisher Grimm, K.D., Cheng, Z. 2019. Stubby root nematodes and associated corky ringspot disease. Potato Progress. 19(1).The beet leafhopper odyssey in North America: a brief overview-(Trade Journal) Horton, D.R., Cooper, W.R., Swisher Grimm, K.D., Crowder, D., Fu, Z., Waters, T., Wohleb, C., Frost, K., Jensen, A., Blua, M. 2018. The beet leafhopper odyssey in North America: a brief overview. Potato Progress. 18(16).Identification of a new haplotype of ‘Candidatus Liberibacter solanacearum’ in Solanum tuberosum-(Peer Reviewed Journal) Swisher Grimm, K.D., Garczynski, S.F. 2019. Identification of a new haplotype of ‘Candidatus Liberibacter solanacearum’ in Solanum tuberosum. Plant Disease. 103:468-474.Mapping potato psyllid populations in potato in the Columbia Basin of Washington and Oregon from 2013 – 2017-(Abstract Only) Swisher Grimm, K.D., Cueva, I., Wohleb, C., Horton, D.R., Cooper, W.R., Munyaneza, J.E. 2019. Mapping potato psyllid populations in potato in the Columbia Basin of Washington and Oregon from 2013 – 2017. American Journal of Potato Research. 96:327. https://doi.org/10.1007/s12230-019-09723-w.Role of ‘Candidatus Liberibacter solanacearum’ and the potato psyllid, Bactericera cockerelli, in ZC incidence, severity, and seed transmission-(Abstract Only) Swisher Grimm, K.D., Mustafa, T., Cooper, W.R., Munyaneza, J.E. 2019. Role of ‘Candidatus Liberibacter solanacearum’ and the potato psyllid, Bactericera cockerelli, in ZC incidence, severity, and seed transmission. American Journal of Potato Research. 96:334. https://doi.org/10.1007/s12230-019-09723-w.2017 potato symptoms in the Columbia Basin: Is there a pathogenic cause?-(Trade Journal) Swisher Grimm, K.D., Wohleb, C., Waters, T., Frost, K. 2018. 2017 potato symptoms in the Columbia Basin: Is there a pathogenic cause?. Potato Progress. 18(10):1-4.Role of ‘Candidatus Liberibacter solanacearum’ and Bactericera cockerelli haplotypes in zebra chip incidence and symptom severity-(Peer Reviewed Journal) Swisher Grimm, K.D., Mustafa, T., Cooper, W.R., Munyaneza, J.E. 2018. Role of ‘Candidatus Liberibacter solanacearum’ and Bactericera cockerelli haplotypes in zebra chip incidence and symptom severity. American Journal of Potato Research. 95:709-719.Development of KASP markers for the identification of pea seed-borne mosaic virus pathotype P-1 resistant alleles of eIF4E in Pisum sativum-(Abstract Only) Swisher Grimm, K.D., Porter, L.D. 2017. Development of KASP markers for the identification of pea seed-borne mosaic virus pathotype P-1 resistant alleles of eIF4E in Pisum sativum. Phytopathology. https://doi.org/10.1094/PHYTO-107-12-S5.1.Use of KASP markers to screen the Pisum sativum single plant core collection and commercial varieties for resistance to pea seed-borne mosaic virus pathotype P-1-(Abstract Only) Swisher Grimm, K.D., Porter, L.D. 2017. Use of KASP markers to screen the Pisum sativum single plant core collection and commercial varieties for resistance to pea seed-borne mosaic virus pathotype P-1. Phytopathology. https://doi.org/10.1094/PHYTO-107-12-S5.1.Potato-related research at USDA-ARS laboratories in Washington and Idaho-(Trade Journal) Horton, D.R., Cooper, W.R., Landolt, P.J., Thinakaran, J., Miliczky, E., Kaur, N., Navarre, D.A., Brown, C.R., Swisher, K.D., Novy, R.G., Whitworth, J.L. 2017. Potato-related research at USDA-ARS laboratories in Washington and Idaho. Potato Progress. 17(14):1-12.Detection of pathogens associated with psyllids and leafhoppers in Capsicum annuum L. in the Mexican States of Durango, Zacatecas, and Michoacán-(Peer Reviewed Journal) Swisher Grimm, K.D., Munyaneza, J.E., Velasquez-Valle, R., Mena-Covarrubias, J. 2018. Detection of pathogens associated with psyllids and leafhoppers in Capsicum annuum L. in the Mexican States of Durango, Zacatecas, and Michoacán. Plant Disease. 102:146-153.CRISPR/Cas9 editing of the codling moth (Lepidoptera: Tortricidae) CpomOR1 gene affects egg production and viability-(Peer Reviewed Journal) Garczynski, S.F., Martin, J.A., Griset, M.L., Willett, L.S., Cooper, W.R., Swisher, K.D., Unruh, T.R. 2017. CRISPR/Cas9 editing of the codling moth (Lepidoptera: Tortricidae) CpomOR1 gene affects egg production and viability. Journal of Economic Entomology. 110(4):1847-1855.First report of BLTVA phytoplasma in Capsicum annuum and Circulifer tenellus in Mexico-(Peer Reviewed Journal) Swisher, K.D., Munyaneza, J.E., Velasquez-Valle, R., Mena-Covarrubias, J. 2017. First report of BLTVA phytoplasma in Capsicum annuum and Circulifer tenellus in Mexico. Plant Disease. 101(6):1032. doi:10.1094/PDIS-12-16-1723-PDN.Occurrence and molecular detection of Spiroplasma citri in carrots and Circulifer tenellus in Mexico-(Peer Reviewed Journal) Swisher, K.D., Velasquez-Valle, R., Mena-Covarrubias, J., Munyaneza, J.E. 2016. Occurrence and molecular detection of Spiroplasma citri in carrots and Circulifer tenellus in Mexico. Journal of Plant Pathology. 98:355-360.Horizontal transmission of "Candidatus Liberibacter solanacearum" by Bactericera cockerelli (Hemiptera: Triozidae) on Convolvulus and Ipomoea (Solanales: Convolvulaceae)-(Peer Reviewed Journal) Torres, G.L., Cooper, W.R., Horton, D.R., Swisher, K.D., Garczynski, S.F., Munyaneza, J.E., Barcenas, N.M. 2015. Horizontal transmission of "Candidatus Liberibacter solanacearum" by Bactericera cockerelli (Hemiptera: Triozidae) on Convolvulus and Ipomoea (Solanales: Convolvulaceae). PLoS One. doi: 10.1371/journal.pone.0142734.Use of Electrical Penetration Graph Technology to Examine Transmission of ‘Candidatus Liberibacter solanacearum’ to Potato by Three Haplotypes of Potato Psyllid (Bactericera cockerelli; Hemiptera: Triozidae)-(Peer Reviewed Journal) Mustafa, T., Horton, D.R., Cooper, W.R., Swisher, K.D., Zack, R.R., Pappu, H.R., Munyaneza, J.E. 2015. Use of Electrical Penetration Graph Technology to Examine Transmission of ‘Candidatus Liberibacter solanacearum’ to Potato by Three Haplotypes of Potato Psyllid (Bactericera cockerelli; Hemiptera: Triozidae). PLoS One. 10(9):e01 38946. doi:10.1371/journal.pone.0138946.A new problem and old questions: potato psyllid in the Pacific Northwest-(Peer Reviewed Journal) Horton, D.R., Cooper, W.R., Munyaneza, J.E., Swisher, K.D., Echegaray, E., Murphy, A., Rondon, S., Wohleb, C., Waters, T., Jensen, A. 2015. A new problem and old questions: potato psyllid in the Pacific Northwest. American Entomologist. 61(4):234-244.Zebra Chip: What is the risk of disease transmission through potato tubers?-(Proceedings) Swisher, K.D., Munyaneza, J.E. 2015. Zebra Chip: What is the risk of disease transmission through potato tubers?. Meeting Proceedings. Pp 71-75.First Report of ‘Candidatus Liberibacter solanacearum’ Associated with Psyllid-Infested Carrots in Germany-(Peer Reviewed Journal) Munyaneza, J.E., Swisher, K.D., Hommes, M., Willhauck, A., Buck, H., Meadow, R. 2015. First Report of ‘Candidatus Liberibacter solanacearum’ Associated with Psyllid-Infested Carrots in Germany. Plant Disease. 99:1269.Potato psyllids and their bacterial allies:  Two fronts in the war against zebra chip disease.-(Proceedings) Cooper, W.R., Swisher, K.D., Garczynski, S.F., Mustafa, T., Munyaneza, J.E., Horton, D.R. 2015. Potato psyllids and their bacterial allies:  Two fronts in the war against zebra chip disease.. Meeting Proceedings. Pp 1-5.Assessing transmission of ‘Candidatus Liberibacter solanacearum’ haplotypes through seed potato-(Proceedings) Munyaneza, J.E., Swisher, K.D. 2015. Assessing transmission of ‘Candidatus Liberibacter solanacearum’ haplotypes through seed potato  . Meeting Proceedings. pp. 59-62.Liberibacter transmission efficiency among potato psyllid haplotypes-(Proceedings) Mustafa, T., Munyaneza, J.E., Swisher, K.D., Horton, D.R., Zack, R. 2015. Liberibacter transmission efficiency among potato psyllid haplotypes. Meeting Proceedings. pp. 68-71.Assessing reproduction of potato psyllid haplotypes-(Proceedings) Mustafa, T., Munyaneza, J.E., Horton, D.R., Cooper, W.R., Swisher, K.D., Zack, R.S. 2015. Assessing reproduction of potato psyllid haplotypes. Meeting Proceedings. pp. 72-76.Non-potato host plants of potato psyllid in the Pacific Northwest: a year-round complication?-(Trade Journal) Horton, D.R., Cooper, W.R., Munyaneza, J.E., Swisher, K.D., Wohleb, C., Waters, T., Jensen, A. 2015. Non-potato host plants of potato psyllid in the Pacific Northwest: a year-round complication?. Potato Progress. 15:2.Effects of host plant on development and body size of three haplotypes of Bactericera cockerelli (Hemiptera:Triozidae)-(Peer Reviewed Journal) Mustafa, T., Horton, D.R., Swisher, K.D., Zack, R., Munyaneza, J.E. 2015. Effects of host plant on development and body size of three haplotypes of Bactericera cockerelli (Hemiptera:Triozidae). Environmental Entomology. 44:593-600.Wolbachia infection differs among divergent mitochondrial haplotypes of Bactericera cockerelli (Hemiptera: Triozidae)-(Peer Reviewed Journal) Cooper, W.R., Swisher, K.D., Garczynski, S.F., Mustafa, T., Munyaneza, J.E., Horton, D.R. 2015. Wolbachia infection differs among divergent mitochondrial haplotypes of Bactericera cockerelli (Hemiptera: Triozidae). Annals of the Entomological Society of America. 108(2):137-145.Interhaplotype fertility and host effects of potato and bittersweet nightshade on selected reproductive traits of three haplotypes of Bactericera cockerelli (Hemiptera: Triozidae)-(Peer Reviewed Journal) Mustafa, T., Horton, D.R., Cooper, W.R., Swisher, K.D., Zack, R.S., Munyaneza, J.E. 2015. Interhaplotype fertility and host effects of potato and bittersweet nightshade on selected reproductive traits of three haplotypes of Bactericera cockerelli (Hemiptera: Triozidae). Environmental Entomology. 44:300-308.Reproductive status of overwintering potato psyllid: absence of photoperiod effects-(Proceedings) Horton, D.R., Miliczky, E., Munyaneza, J.E., Swisher, K.D., Jensen, A. 2014. Reproductive status of overwintering potato psyllid: absence of photoperiod effects. Meeting Proceedings. 100-103.First report of 'Candidatus Liberibacter solanacearum' on carrot in Africa-(Peer Reviewed Journal) Tahzima, R., Maes, M., Achbani, E.H., Swisher Grimm, K.D., Munyaneza, J.E., De Jonghe, K. 2014. First report of 'Candidatus Liberibacter solanacearum' on carrot in Africa. Plant Disease. 98:1426.Wolbachia-infection differs among potato psyllid haplotypes-(Proceedings) Cooper, W.R., Mustafa, T., Swisher, K.D., Garczynski, S.F., Munyaneza, J.E., Horton, D.R. 2015. Wolbachia-infection differs among potato psyllid haplotypes. American Journal of Potato Research. 92:182.Absence of photoperiod effects on mating and ovarian maturation by three haplotypes of potato psyllid, Bactericera cockerelli (Hemiptera: Triozidae)-(Peer Reviewed Journal) Horton, D.R., Miliczky, E., Munyaneza, J.E., Swisher, K.D., Jensen, A. 2014. Absence of photoperiod effects on mating and ovarian maturation by three haplotypes of potato psyllid, Bactericera cockerelli (Hemiptera: Triozidae). Journal of British Columbia Entomological Society. 111:1-2.Latent period and transmission of "Candidatus Liberibacter solanacearum" by the potato psyllid Bactericera cockerelli (Hemiptera: Triozidae)-(Peer Reviewed Journal) Sengoda, V.G., Cooper, W.R., Swisher, K.D., Henne, D.C., Munyaneza, J.E. 2014. Latent period and transmission of "Candidatus Liberibacter solanacearum" by the potato psyllid Bactericera cockerelli (Hemiptera: Triozidae). PLoS One. 9(3):e93475.Assessing potato psyllid haplotypes in potato crops in the Pacific Northwestern United States-(Peer Reviewed Journal) Swisher, K.D., Sengoda, V.G., Dixon, J., Munyaneza, J.E., Murphy, A.F., Rondon, S.I., Thompson, B., Karasev, A.V., Wenninger, E.J., Olsen, N., Crosslin, J. 2014. Assessing potato psyllid haplotypes in potato crops in the Pacific Northwestern United States. American Journal of Potato Research. DOI:10.1007/s12230-014-9378-8.Liberibacter-associated disease occurrence in Central America-(Proceedings)What is the source of potato psyllids colonizing Washington, Oregon, and Idaho potato fields?-(Trade Journal) Horton, D.R., Munyaneza, J.E., Swisher, K.D., Echegaray, E., Murphy, A., Rondon, S., Sengoda, V., Neven, L.G., Jensen, A. 2014. What is the source of potato psyllids colonizing Washington, Oregon, and Idaho potato fields?. Potato Progress. 14(2): 1-7.Seasonal dispersal of the potato psyllid, Bactericera cockerelli, into potato crops-(Peer Reviewed Journal) Nelson, W.R., Swisher, K.D., Crosslin, J., Munyaneza, J.E. 2014. Seasonal dispersal of the potato psyllid, Bactericera cockerelli, into potato crops. Southwestern Entomologist. 39:177-186.Restriction digestion method for haplotyping the potato psyllid, Bactericera cockerelli-(Peer Reviewed Journal) Swisher, K.D., Crosslin, J. 2014. Restriction digestion method for haplotyping the potato psyllid, Bactericera cockerelli. Southwestern Entomologist. 39:49-56.Haplotypes of the potato psyllid, Bactericera cockerelli, on the wild host plant, Solanum dulcamara, in the Pacific Northwestern United States-(Peer Reviewed Journal) Swisher, K.D., Sengoda, V., Dixon, J.A., Echegaray, E., Murphey, A., Rondon, S., Munyaneza, J.E., Crosslin, J. 2013. Haplotypes of the potato psyllid, Bactericera cockerelli, on the wild host plant, Solanum dulcamara, in the Pacific Northwestern United States. American Journal of Potato Research. 90:570-577.Haplotyping studies of the potato psyllid, Bactericera cockerelli, in Mexico and Central America-(Peer Reviewed Journal) Swisher, K.D., Arp, A., Bextine, B., Aguilar Alvarez, E., Crosslin, J., Munyaneza, J.E. 2013. Haplotyping studies of the potato psyllid, Bactericera cockerelli, in Mexico and Central America. Southwestern Entomologist. 38:201-208.Temporal analysis of potato psyllid haplotypes in the United States-(Peer Reviewed Journal) Swisher, K.D., Munyaneza, J.E., Crosslin, J. 2013. Temporal analysis of potato psyllid haplotypes in the United States. Environmental Entomology. 42:381-393.A rapid method for preparation of nucleic acid extracts from potato psyllids for detection of 'Candidatus Liberibacter solancearum' and molecular analysis-(Peer Reviewed Journal) Crosslin, J., Swisher, K.D., Hamlin, L.L. 2013. A rapid method for preparation of nucleic acid extracts from potato psyllids for detection of 'Candidatus Liberibacter solancearum' and molecular analysis. Southwestern Entomologist. 38:41-48.High resolution melting analysis of the cytochrome oxidase I gene identifies three haplotypes of the potato psyllid, Bactericera cockerelli, in the United States-(Peer Reviewed Journal) Swisher, K.D., Munyaneza, J.E., Crosslin, J. 2012. High resolution melting analysis of the cytochrome oxidase I gene identifies three haplotypes of the potato psyllid, Bactericera cockerelli, in the United States. Environmental Entomology. 41:1019-1028.


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