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 Temperate Tree Fruit and Vegetable Research: Wapato, WA
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ARS Home Pacific West Area Wapato, Washington Temperate Tree Fruit and Vegetable Research People







William  Cooper

(Rodney)    Research Leader Cell: 509-439-5170 **Education:** BS Biology/Environmental Science, Sheperd College, Shepherdstown, WV, 2000 MS Entomology, University of Arkansas, Fayetteville, AR, 2004 PhD Entomology, University of Kentucky, Lexington, KY, 2007 **Research Interests:** Rodney conducts research on biology and management of insect pests of tree fruits and potatoes, with an emphasis on non-crop sources of insect vectors of crop pathogens.  He uses molecular gut content analysis to identify the dietary history of Hemipteran vectors (leafhoppers and psyllids) and uses that information to infer the landscape level movements of the vectors prior to their capture. **Laboratory Personnel:** Heather Headrick, Biological Science Technician (Molecular Laboratory/gut content analysis) Pauline Anderson, Biological Science Technician (Greenhouse/Insect rearing) Rachel Cook, Biological Science Technician Jillian Foutz, Biological Science Technician Bonnie Ohler, Research Associate (WSU) Adrian Marshall, Entomologist (Post-doc)  Google Scholar Profile ProjectsNew Technologies and Strategies for Managing Emerging Insect Pests and Insect Transmitted Pathogens of PotatoesIn-House Appropriated (D)Accession Number:439448Integrated Approach to Manage the Pest Complex on Temperate Tree FruitsIn-House Appropriated (D)Accession Number:439454Therapeutic Molecule Evaluation and Field Delivery PipelineInteragency Reimbursable Agreement (I)Accession Number:439294Biology, Management and Reducing the Impact of the Spotted LanternflyReimbursable Cooperative Agreement (R)Accession Number:439063Biological Control of Insect Pests in Non-Crop HabitatsReimbursable Cooperative Agreement (R)Accession Number:441213Genetic Insights into Leafhopper/Phytoplasma Interactions and Gene-based Immunization for Plant Disease ControlNon-Assistance Cooperative Agreement (S)Accession Number:441667Areawide Management of Insect Vectors in the Columbia Basin of OregonNon-Assistance Cooperative Agreement (S)Accession Number:440374Characterization of Novel Viruses Pathogenic to Potato PsyllidNon-Assistance Cooperative Agreement (S)Accession Number:440438Areawide Management of Insect Vectors in Columbia Basin Vegetable and Seed CropsNon-Assistance Cooperative Agreement (S)Accession Number:436896Search for Wireworm Attractants in IllinoisNon-Assistance Cooperative Agreement (S)Accession Number:437117Identifying Important Parasites and Predators of Potato Psyllid in Non-Crop Habitats of the Columbia BasinNon-Assistance Cooperative Agreement (S)Accession Number:438303What’s That Smell? Search for Wireworm Attractants and Development of Pheromone-based Methods for Monitoring and Management - NCSUNon-Assistance Cooperative Agreement (S)Accession Number:438548What’s That Smell? Search for Wireworm Attractants and Development of Pheromone-based Methods for Monitoring and Management - VPINon-Assistance Cooperative Agreement (S)Accession Number:438555USDA-ARS/Washington State University Little Cherry Disease Research PartnershipNon-Assistance Cooperative Agreement (S)Accession Number:442287Areawide Management of Insect Vectors in the Columbia Basin of WashingtonNon-Assistance Cooperative Agreement (S)Accession Number:442324Green Peach Aphid–Plant Interactions in Southern IdahoNon-Assistance Cooperative Agreement (S)Accession Number:442864Biological Control of Insect PestsNon-Assistance Cooperative Agreement (S)Accession Number:443633Determining the Threat and Spread of New and Novel South American Ca. Liberibacter Species to North American Potato Crops and Wild Potato GermplasmsNon-Assistance Cooperative Agreement (S)Accession Number:444168The Whirligig Mite and New Biological Control Opportunities in PotatoesNon-Assistance Cooperative Agreement (S)Accession Number:444357Molecular Analysis of the Psyllids Potentially Vectoring Ca. Liberibacter Species to North American Potato Crops and Wild Potato GermplasmsNon-Assistance Cooperative Agreement (S)Accession Number:444481Threat and Spread of New and Novel South American Ca. Liberibacter SpeciesNon-Assistance Cooperative Agreement (S)Accession Number:444482Identification 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:444950Identification of Pear Tree Volatiles Attractive to Winterform PsyllaTrust Fund Cooperative Agreement (T)Accession Number:438608RNA-Based Pesticides To Manage Insect-Vectored Plant Pathogens In PotatoTrust Fund Cooperative Agreement (T)Accession Number:441975Experimental Orchard for X-Disease and Little Cherry Disease ResearchTrust Fund Cooperative Agreement (T)Accession Number:441609  ARS News ArticlesitemDeciding When to Spray: Sometimes It Is More than Just NumbersitemPotato Pest Dissected for Clues to Better Controlling ItitemUSDA ARS and Collaborators Research Shows Innovative Technology to Treat Plant Pathogens and Pests  Publications(Clicking on the reprint iconReprint Icon  will take you to the publication reprint.)Bactericera cockerelli picorna-like virus and three new viruses found circulating in populations of potato/tomato psyllids (Bactericera cockerelli)-(Peer Reviewed Journal) Dahan, J., Orellana, G.E., Wald, K., Wenninger, E.J., Cooper, W.R., Karasev, A.V. 2024. Bactericera cockerelli picorna-like virus and three new viruses found circulating in populations of potato/tomato psyllids (Bactericera cockerelli). Viruses. 16(3). https://doi.org/10.3390/v16030415.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.Colladonus spp. (Hemiptera: Cicadellidae) vectors of X-disease: biology and management in Western United States-(Peer Reviewed Journal) Clarke, A.E., Catron, K.A., Reyes Corral, C., Marshall, A.T., Adams, C., Cooper, W.R., Harper, S.J., Nottingham, L.B., Northfield, T.D. 2024. Colladonus spp. (Hemiptera: Cicadellidae) vectors of X-disease: biology and management in Western United States. Journal of Integrated Pest Management. 15(1):13. https://doi.org/10.1093/jipm/pmae005.The functional decline of tomato plants infected by Candidatus Liberibacter solanacearum: an RNA-Seq transcriptomic analysis-(Peer Reviewed Journal) Chuan, J., Nie, J., Cooper, W.R., Chen, W., Hale, L., Le, S. 2024. The functional decline of tomato plants infected by Candidatus Liberibacter solanacearum: an RNA-Seq transcriptomic analysis. Frontiers in Plant Science. 15:1325254. https://doi.org/10.3389/fpls.2024.1325254.High throughput molecular gut content analysis of aphids identifies plants relevant for potato virus Y epidemiology-(Peer Reviewed Journal) Pitt, W.J., Cooper, W.R., Pouchnik, D., Headrick, H.L., Nachappa, P. 2024. High throughput molecular gut content analysis of aphids identifies plants relevant for potato virus Y epidemiology. Insect Science. https://doi.org/10.1111/1744-7917.13327.Dietary history of click beetles and wireworms in the genus Limonius Eschscholtz (Coleoptera: Elateridae) revealed by molecular gut content analysis-(Peer Reviewed Journal) Serrano, J.M., Cook, R.E., Headrick, H.L., Cooper, W.R. 2023. Dietary history of click beetles and wireworms in the genus Limonius Eschscholtz (Coleoptera: Elateridae) revealed by molecular gut content analysis. Environmental Entomology. https://doi.org/10.1093/ee/nvad114.Seasonal activity of Trechnites insidiosus(Hymenoptera: Encyrtidae) and its host Cacopsylla pyricola (Hemiptera: Psyllidae) in pear-(Peer Reviewed Journal) Zilnik, G.L., Cooper, W.R., Horton, D.R., Orpet, R., Nottingham, L., Hilton, R., Adams, C., Dickens, K., Halbert, S., Snyder, J., Schmidt-Jeffris, R.A. 2023. Seasonal activity of Trechnites insidiosus(Hymenoptera: Encyrtidae) and its host Cacopsylla pyricola (Hemiptera: Psyllidae) in pear. Journal of Economic Entomology. 116:1957-1968. https://doi.org/10.1093/jee/toad199.Do adult Magicicada (Hemiptera: Cicadidae)feed? Historical perspectives and evidence from molecular gut content analysis-(Peer Reviewed Journal) Hepler, J.R., Cooper, W.R., Cullum, J.P., Dardick, C.D., Dardick, L.C., Nixon, L., Pouchnik, D.J., Raupp, M., Shrewsbury, P., Leskey, T.C. 2023. Do adult Magicicada (Hemiptera: Cicadidae)feed? Historical perspectives and evidence from molecular gut content analysis. Journal of Insect Science. 23(5):13;1-9. https://doi.org/10.1093/jisesa/iead082.Diversity, biology, and management of the pear psyllids: a global look-(Peer Reviewed Journal) Civolani, S., Soroker, V., Cooper, W.R., Horton, D.R. 2023. Diversity, biology, and management of the pear psyllids: a global look. Annals of the Entomological Society of America. https://doi.org/10.1093/aesa/saad025.Flight phenology and landscape predictors of invasive Coleophora deauratella populations in Oregon and New Zealand red clover-(Peer Reviewed Journal) Dorman, S.J., Kaur, N., Anderson, N., Sim, R., Tanner, C., Walenta, D., Cooper, W.R. 2023. Flight phenology and landscape predictors of invasive Coleophora deauratella populations in Oregon and New Zealand red clover. Journal of Pest Science. https://doi.org/10.1007/s10340-023-01684-8.Physalis virginiana as a wild field host of Bactericera cockerelli (Hemiptera: Triozidae) and ‘Candidatus Liberibacter solanacearum’-(Peer Reviewed Journal) Delgado-Luna, C., Cooper, W.R., Quintanilla, J.A., Hernandez-Juarez, A., Sanchez-Pena, S.R. 2024. Physalis virginiana as a wild field host of Bactericera cockerelli (Hemiptera: Triozidae) and ‘Candidatus Liberibacter solanacearum’. Plant Disease. 108(1):113-117. https://doi.org/10.1094/PDIS-02-23-0350-RE.Salivary protein expression profiles of five species of Pentatomidae (Hemiptera)-(Peer Reviewed Journal) Marshall, A.T., Cooper, W.R., Walker Iii, W.B., Wildung, M., Northfield, T.D., Krey, K.L., Beers, E.H. 2023. Salivary protein expression profiles of five species of Pentatomidae (Hemiptera). Annals of the Entomological Society of America. 116:358-371. https://doi.org/10.1093/aesa/saad020.Targeted RT-PCR based gut content analysis for potato psyllid predation in laboratory assays-(Peer Reviewed Journal) Ohler, B.J., Reyes Corral, C.A., Cooper, W.R., Horton, D.R., Waters, T.D. 2023. Targeted RT-PCR based gut content analysis for potato psyllid predation in laboratory assays. American Journal of Potato Research. https://doi.org/10.1007/s12230-023-09920-8.Tracking beneficial parasites to safeguard cherry production-(Popular Publication) Reyes Corral, C., Cooper, W.R., Harper, S., Northfield, T. 2023. Tracking beneficial parasites to safeguard cherry production. World Wide Web. July 18 2023; https://csanr.wsu.edu/tracking-beneficial-parasites-cherry-production/.Preliminary study of pear ester toxicity when consumed by Polistes dominula (Hymenoptera: Vespidae)-(Peer Reviewed Journal) Asche, M., Landolt, P., Cooper, W.R., Sheppard, W.S., Zack, R.S. 2023. Preliminary study of pear ester toxicity when consumed by Polistes dominula (Hymenoptera: Vespidae). Florida Entomologist. 106(4);205-210. https://doi.org/10.1653/024.106.0401.Recovery plan for X-disease in stone fruit caused by 'Candidatus Phytoplasma pruni'-(Peer Reviewed Journal) Harper, S.J., Northfield, T.D., Nottingham, L.R., Dupont, S.T., Thompson, A.A., Sollato, B.V., Serban, C.F., Shires, M.K., Wright, A.A., Catron, K.A., Marshall, A., Molnar, C., Cooper, W.R. 2023. Recovery plan for X-disease in stone fruit caused by 'Candidatus Phytoplasma pruni'. Plant Health Progress. 24(2):258-295. https://doi.org/10.1094/PHP-02-23-0016-RP.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.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.Association of two Bactericera species (Hemiptera: Triozidae) with native Lycium spp. (Solanales: Solanaceae) in the potato growing regions of the Rio Grande Valley of Texas-(Peer Reviewed Journal) Cooper, W.R., Esparza-Diaz, G., Wildung, M.R., Horton, D.R., Badillo-Vargas, I.E., Halbert, S.E. 2022. Association of two Bactericera species (Hemiptera: Triozidae) with native Lycium spp. (Solanales: Solanaceae) in the potato growing regions of the Rio Grande Valley of Texas. Environmental Entomology. 52(1):98-107. https://doi.org/10.1093/ee/nvac109.A comprehensive review of zebra chip disease in potato and its management through breeding for resistance/tolerance to 'Candidatus Liberibacter solanacearum' and its insect vector-(Review Article) Prager, S., Cohen, A., Cooper, W.R., Novy, R.G., Rashed, A., Wenninger, E., Wallis, C.M. 2022. A comprehensive review of zebra chip disease in potato and its management through breeding for resistance/tolerance to 'Candidatus Liberibacter solanacearum' and its insect vector. Pest Management Science. 78:3731-3745. https://doi.org/10.1002/ps.6913.Good to know: integrated research.  Entomologists at the USDA laboratory in Wapato, Washington, work to advance IPM for orchards-(Trade Journal) Cooper, W.R., Horton, D.R., Neven, L.G., Serrano, J.M., Walker Iii, W.B., Yee, W.L., Schmidt-Jeffris, R.A. 2022. Good to know: integrated research.  Entomologists at the USDA laboratory in Wapato, Washington, work to advance IPM for orchards. Good Fruit Grower. March 1, 2022 Issue.Directed sequencing of plant specific DNA identifies the dietary history of four species of Auchenorrhyncha (Hemiptera)-(Peer Reviewed Journal) Cooper, W.R., Marshall, A.T., Foutz, J., Wildung, M.R., Northfield, T.D., Crowder, D.W., Leach, H., Leskey, T.C., Halbert, S.E., Snyder, J. 2022. Directed sequencing of plant specific DNA identifies the dietary history of four species of Auchenorrhyncha (Hemiptera). Annals of the Entomological Society of America. 115(3):275-284. https://doi.org/10.1093/aesa/saab053.Factors influencing Trechnites spp. abundance in WA and OR pear orchards-(Abstract Only)Apple Integrated Mite Management: where can we go next?-(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.Crude extracts and alkaloids derived from Ipomoea-Periglandula symbiotic association cause mortality of Asian citrus psyllid Diaphorina citri Kuwayama (Hemiptera: Psyllidae)-(Peer Reviewed Journal) Chen, X., Kaur, N., Horton, D.R., Cooper, W.R., Qureshi, J.A., Stelinski, L.L. 2021. Crude extracts and alkaloids derived from Ipomoea-Periglandula symbiotic association cause mortality of Asian citrus psyllid Diaphorina citri Kuwayama (Hemiptera: Psyllidae). Insects. 12(10). Article 929. https://doi.org/10.3390/insects12100929.A new picorna-like virus identified in populations of the potato psyllid Bactericera cockerelli-(Peer Reviewed Journal) Dahan, J., Cooper, W.R., Munyaneza, J.E., Karasev, A.V. 2021. A new picorna-like virus identified in populations of the potato psyllid Bactericera cockerelli. Archives of Virology. 167:177-182. https://doi.org/10.1007/s00705-021-05281-x.Molecular advances in larval fruit moth identification to facilitate fruit export from western United States under systems approaches-(Peer Reviewed Journal) Yokomi, R.K., Delgado, J.K., Unruh, T.R., Barcenas, N.M., Garczynski, S.F., Walse, S., Perez de Leon, A.A., Cooper, W.R. 2021. Molecular advances in larval fruit moth identification to facilitate fruit export from western United States under systems approaches. Annals of the Entomological Society of America. 115(1):105-112. https://doi.org/10.1093/aesa/saab040.Improving suppression of hemipteran vectors and bacterial pathogens of citrus and potatoes: Advances in antisense oligonucleotide (FANA)-(Peer Reviewed Journal) Hunter, W.B., Cooper, W.R., Sandoval-Mojica, A., McCollum, T.G., Aishwarya, V., Pelz-Stelinski, K.S. 2021. Improving suppression of hemipteran vectors and bacterial pathogens of citrus and potatoes: Advances in antisense oligonucleotide (FANA). Frontiers in Agronomy. 3. Article 675247. https://doi.org/10.3389/fagro.2021.675247.Association of Bactericera cockerelli (Hemiptera: Triozidae) with the perennial weed Physalis longifolia (Solanales: Solanaceae) in the potato-growing regions of western Idaho-(Peer Reviewed Journal) Reyes Corral, C., Cooper, W.R., Horton, D.R., Miliczky, E., Riebe, J., Waters, T., Wildung, M., Karasev, A. 2021. Association of Bactericera cockerelli (Hemiptera: Triozidae) with the perennial weed Physalis longifolia (Solanales: Solanaceae) in the potato-growing regions of western Idaho. Environmental Entomology. 50(6):1416-1424. https://doi.org/10.1093/ee/nvab076.Limoniic acid and its analogue as trap lures for pest Limonius species (Coleoptera: Elateridae) in North America-(Peer Reviewed Journal) van Herk, W.G., Lemke, E., Gries, G., Gries, R., Serrano, J.M., Catton, H.A., Wanner, K.W., Landolt, P.J., Cooper, W.R., Meers, S., Nikoukar, A., Smith, J.L., Alamsetti, S.K., Etzler, F. 2021. Limoniic acid and its analogue as trap lures for pest Limonius species (Coleoptera: Elateridae) in North America. Journal of Economic Entomology. 114(5):2108-2120. https://doi.org/10.1093/jee/toab154.Test of plant defense elicitors for arthropod pest suppression and PR-1 gene induction in pear orchards-(Peer Reviewed Journal) Orpet, R., Cooper, W.R., Beers, E.H., Nottingham, L.B. 2021. Test of plant defense elicitors for arthropod pest suppression and PR-1 gene induction in pear orchards. Entomologia Experimentalis et Applicata. 169(12):1137-1146. https://doi.org/10.1111/eea.13110.An open access resource portal for arthropod vectors and agri-cultural pathosystems: AgriVectors.org-(Proceedings) Saha, S., Cooper, W.R., Hunter, W.B., Muller, L.A. 2021. An open access resource portal for arthropod vectors and agri-cultural pathosystems: AgriVectors.org. Meeting Proceedings. https://doi.org/10.3390/IECE-10576.Matrimony Vine: Friend or Foe in the Battle Against Potato Psyllid-(Popular Publication) Cooper, W.R., Horton, D.R., Wohleb, C.H., Jensen, A.S. 2021. Matrimony Vine: Friend or Foe in the Battle Against Potato Psyllid. Potato Progress. 21;3.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.Stylet probing behavior of two Bactericera (Hemiptera:Psylloidea:Triozidae) species on host and nonhost plants-(Peer Reviewed Journal) Mustafa, T., Horton, D.R., Cooper, W.R., Zack, R., Thinakaran, J., Karasev, A., Munyaneza, J.E. 2021. Stylet-probing behavior of two Bactericera species on host and non-host plants (Hemiptera: Psylloidea: Triozidae). Environmental Entomology. 50(4):919-928. https://doi.org/10.1093/ee/nvab031."Candidatus Liberibacter solanacearum” infection of commercial tomatillo, Physalis ixocarpa Brot. (Solanales: Solanaceae) in Saltillo, Mexico-(Peer Reviewed Journal) Reyes Corral, C., Cooper, W.R., Karasev, A.V., Delgado-Luna, C., Sanchez-Pena, S. 2021. "Candidatus Liberibacter solanacearum” infection of commercial tomatillo, Physalis ixocarpa Brot. (Solanales: Solanaceae) in Saltillo, Mexico. Plant Disease. 105(9):2560-2566. https://doi.org/10.1094/PDIS-10-20-2240-RE.Host plant signal persistence in the gut of the brown marmorated stink bug, Halyomorpha halys-(Peer Reviewed Journal) Helper, J., Cooper, W.R., Beers, E. 2020. Host plant signal persistence in the gut of the brown marmorated stink bug, Halyomorpha halys. Environmental Entomology. 50(1):202-207. https://doi.org/10.1093/ee/nvaa152.Revealing the diet of generalist insect predators in strawberry fields: not only pests, but other predators beware-(Peer Reviewed Journal) Krey, K.L., Cooper, W.R., Renkema, J.M. 2020. Revealing the diet of generalist insect predators in strawberry fields: not only pests, but other predators beware. Environmental Entomology. 49(6):1300-1306. https://doi.org/10.1093/ee/nvaa125.Susceptibility of Physalis longifolia (Solanales: Solanaceae) to Bactericera cockerelli (Hemiptera: Triozidae) and “Candidatus Liberibacter solanacearum"-(Peer Reviewed Journal) Reyes Corral, C., Cooper, W.R., Horton, D.R., Karasev, A.V. 2020. Susceptibility of Physalis longifolia (Solanales: Solanaceae) to Bactericera cockerelli (Hemiptera: Triozidae) and “Candidatus Liberibacter solanacearum". Journal of Economic Entomology. 113(6): 2595-2603. https://doi.org/10.1093/jee/toaa210.Host plant and Wolbachia shape the population genetics of sympatric herbivore populations-(Peer Reviewed Journal) Fu, Z., Meier, A.R., Epstein, B., Bergland, A.O., Castillo Carrillo, C.I., Cooper, W.R., Cruzado, R.K., Horton, D.R., Jensen, A.S., Kelley, J.L., Rashed, A., Reitz, S.R., Rondon, S.I., Thinakaran, J., Wenninger, E.J., Wohleb, C.H., Crowder, D.W., Snyder, W.E. 2020. Host plant and Wolbachia shape the population genetics of sympatric herbivore populations  . Evolutionary Applications. 13:2740-2753.Mortality of potato psyllid (Hemiptera: Triozidae) on host clippings inoculated with ergot alkaloids-(Peer Reviewed Journal) Kaur, N., Cooper, W.R., Duringer, J., Rashed, A., Badillo-Vargas, I., Esparza-Diaz, Horton, D.R. 2020. Mortality of potato psyllid (Hemiptera: Triozidae) on host clippings inoculated with ergot alkaloids. Journal of Economic Entomology. 113(5):2079-2085. https://doi.org/10.1093/jee/toaa144.The artificial sweetener, erythritol, has insecticidal properties against pear psylla (Hemiptera: Psyllidae)-(Peer Reviewed Journal) Wentz, K.M., Cooper, W.R., Horton, D.R., Kao, R., Nottingham, L.B. 2020. The artificial sweetener, erythritol, has insecticidal properties against pear psylla (Hemiptera: Psyllidae). Journal of Economic Entomology. 113(5):2293-2299. https://doi.org/10.1093/jee/toaa124.Polistes venom compound N-3-methylbutyl acetamide is a sex pheromone of Polistes metricus Say and attracts males of several Polistes (Fuscopolistes) species-(Peer Reviewed Journal) Elmquist, D.C., Landolt, P.J., Cooper, W.R., Reed, H., Foutz, J., Clepper, T., Kacprzyk, B., Teig, D., Zack, R.S. 2020. Polistes venom compound N-3-methylbutyl acetamide is a sex pheromone of Polistes metricus Say and attracts males of several Polistes (Fuscopolistes) species. Journal of Economic Entomology. 113(12):10-73-1079. https://doi.org/10.1093/jee/toaa065.Dispersal of Bactericera cockerelli (Hemiptera: Triozidae) in relation to phenology of Lycium barbarum (Solanaceae)-(Peer Reviewed Journal) Cooper, W.R., Horton, D.R., Thinakaran, J., Karasev, A.V. 2020.  Dispersal of Bactericera cockerelli (Hemiptera: Triozidae) in relation to phenology of Lycium barbarum (Solanaceae). Journal of British Columbia Entomological Society. 116:25-39.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.Prototype 3D-printed traps capture Bactericera cockerelli (Šulc) (Hemiptera: Triozidae) directly into preservative for improved detection of "Candidatus Liberibacter solanacearum"-(Peer Reviewed Journal) Wentz, K., Cooper, W.R., Horton, D.R., Wohleb, C., Waters, T., Halbert, S., Ramadugu, C., Snyder, J., Kao, R. 2020. Prototype 3D-printed traps capture Bactericera cockerelli (Šulc) (Hemiptera: Triozidae) directly into preservative for improved detection of "Candidatus Liberibacter solanacearum". Journal of Entomological Science. 55(2):147-155. https://doi.org/10.18474/0749-8004-55.2.147.Host and non-host whistle stops by psyllids: Molecular gut content analysis by high-throughput sequencing reveals landscape-level movements by Psylloidea (Hemiptera)-(Peer Reviewed Journal) Cooper, W.R., Horton, D.R., Wildung, M., Jensen, A., Thinakaran, J., Rendon, D., Nottingham, L., Beers, E., Wohleb, C., Hall, D.G., Stelinski, L. 2019. Host and non-host whistle stops by psyllids: Molecular gut content analysis by high-throughput sequencing reveals landscape-level movements by Psylloidea (Hemiptera). Environmental Entomology. 48(3):554-566. https://doi.org/10.1093/ee/nvz038.The weed link in zebra chip epidemiology-(Trade Journal) Cooper, W.R., Horton, D.R., Wohleb, C.H., Waters, T.D. 2019. The weed link in zebra chip epidemiology. Potato Progress. 19:4.The weed link in zebra chip epidemiology: Suitability of non-crop Solanaceae and Convolvulaceae to potato psyllid and Liberibacter solanacearum-(Peer Reviewed Journal) Cooper, W.R., Horton, D.R., Miliczky, E., Wohleb, C., Waters, T. 2019. The weed link in zebra chip epidemiology: Suitability of non-crop Solanaceae and Convolvulaceae to potato psyllid and Liberibacter solanacearum. American Journal of Potato Research. 96:262:271. https://doi.org/10.1007/s12230-019-09712-z.Whence and whither the Convolvulus psyllid? An invasive plant leads to dietary expansion and range expansion by a native insect herbivore (Hemiptera: Triozidae)-(Peer Reviewed Journal) Horton, D.R., Kaur, N., Cooper, W.R., Miliczky, E., Badillo Vargas, I., Esparza-Diaz, G., Rashed, A., Waters, T., Wohleb, C., Johnson, D., Kawchuk, L., Jensen, A. 2019. Whence and whither the Convolvulus psyllid? An invasive plant leads to dietary expansion and range expansion by a native insect herbivore (Hemiptera: Triozidae). Annals of the Entomological Society of America. 112(3):249-264. https://doi.org/10.1093/aesa/say063.Brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae) (Stål, 1855), detections in Western Sydney, New South Wales, Australia-(Peer Reviewed Journal) Horwood, M., Milnes, J., Cooper, W.R. 2019. Brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae) (Stål, 1855), detections in Western Sydney, New South Wales, Australia. Austral Entomology. 58(4):857-865.  https://doi.org/10.1111/aen.12421|.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).Weedy sanctuaries and non-host whistle stops for potato psyllid-(Trade Journal) Cooper, W.R., Horton, D.R. 2019. Weedy sanctuaries and non-host whistle stops for potato psyllid. Potato Country USA. 35(1):36-38.Survival and development of potato psyllid (Hemiptera: Triozidae) on Convolvulaceae: effects of a plant-fungus symbiosis (Periglandula)-(Peer Reviewed Journal) Kaur, N., Horton, D.R., Cooper, W.R., Badillo-Vargas, I.E., Esparza-Diaz, G., Rashed, A., Duringer, J. 2018. Survival and development of potato psyllid (Hemiptera: Triozidae) on Convolvulaceae: effects of a plant-fungus symbiosis (Periglandula). PLoS One. 13(9):e0201506. https://doi.org/10.1371/journal.pone.0201506.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.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 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.The “morning glory” psyllid?  Potato psyllid development on morning glories and bindweed-(Trade Journal) Kaur, N., Rashed, A., Horton, D.R., Cooper, W.R., Badillo-Vargas, I., Esparza-Diaz, G., Jensen, A., Johnson, D., Kawchuk, L. 2018. The “morning glory” psyllid?  Potato psyllid development on morning glories and bindweed. Potato Progress. 18(11).The weed link in zebra chip epidemiology: Annual and perennial weeds as sources of the zebra chip pathogen-(Proceedings) Cooper, W.R., Horton, D.R., Thinakaran, J. 2018. The weed link in zebra chip epidemiology: Annual and perennial weeds as sources of the zebra chip pathogen. American Journal of Potato Research. 95:212.Pinpointing the weed sources of potato psyllid in Washington-(Proceedings)Characterizing zebra chip symptom severity and identifying spectral signatures associated with Candidatus Liberibacter solanacearum infected potato tubers-(Peer Reviewed Journal) Zhao, Z., Prager, S., Cruzado, R., Liang, X., Cooper, W.R., Hu, G., Rashed, A. 2018. Characterizing zebra chip symptom severity and identifying spectral signatures associated with Candidatus Liberibacter solanacearum infected potato tubers. American Journal of Potato Research. 95(5):584-596. https://doi.org/10.1007/s12230-018-9666-9.Use of Lycium by potato psyllid in the Pacific Northwest lessons from the desert Southwest-(Proceedings) Thinakaran, J., Horton, D.R., Cooper, W.R., Karasev, A. 2018. Use of Lycium by potato psyllid in the Pacific Northwest lessons from the desert Southwest. American Journal of Potato Research. 95:226.The latest buzz on bugs-(Trade Journal) Cooper, W.R., Garczynski, S.F., Horton, D.R., Knight, A.L., Neven, L.G., Yee, W.L. 2018. The latest buzz on bugs. Good Fruit Grower. 69(5):38-40.Candidatus Phytoplasma pyri affects behavior of Cacopsylla pyricola (Hemiptera: Psyllidae)-(Peer Reviewed Journal) Cruz, M., Cooper, W.R., Horton, D.R., Barcenas, N. 2018. Candidatus Phytoplasma pyri affects behavior of Cacopsylla pyricola (Hemiptera: Psyllidae). Journal of Entomological Science. 53(3):361-371. https://doi.org/10.18474/JES17-115.1.Potato psyllid and the South American desert plant Nolana: an unlikely psyllid host?-(Trade Journal) Horton, D.R., Miliczky, E., Thinakaran, J., Cooper, W.R., Munyaneza, J., Wohleb, C., Karasev, A. 2017. Potato psyllid and the South American desert plant Nolana: an unlikely psyllid host?. Potato Progress. 17:16.New North American records for the Old World psyllid Heterotrioza chenopodii (Reuter) with biological observations (Hemiptera: Psylloidea: Triozidae)-(Peer Reviewed Journal) Horton, D.R., Miliczky, E., Lewis, T.M., Cooper, W.R., Waters, T., Wohleb, C., Zack, R., Johnson, D., Jensen, A. 2018. New North American records for the Old World psyllid Heterotrioza chenopodii (Reuter) with biological observations (Hemiptera: Psylloidea: Triozidae). Proceedings of the Entomological Society of Washington. 120(1):134-152.Pinpointing the weed source of potato psyllids arriving in Pacific Northwest potatoes-(Trade Journal) Thinakaran, J., Horton, D.R., Cooper, W.R., Karasev, A. 2017. Pinpointing the weed source of potato psyllids arriving in Pacific Northwest potatoes. Potato Grower. December 2017:44-45.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.Potato psyllid vector of zebra chip disease in Pacific Northwest-(Experiment Station) Rondon, S., Schreiber, A., Hamm, P., Olsen, N., Wenninger, E., Wohleb, C., Waters, T., Cooper, W.R., Walenta, D., Reitz, S. 2017. Potato psyllid vector of zebra chip disease in Pacific Northwest. Extension Publications. PNW 633.Survival and feeding rates of four aphid species (Hemiptera: Aphididae) on various sucrose concentrations in diets-(Peer Reviewed Journal) Puterka, G.J., Nicholson, S.J., Cooper, W.R. 2017. Survival and feeding rates of four aphid species (Hemiptera: Aphididae) on various sucrose concentrations in diets. Journal of Economic Entomology. 110(4):1518-1524.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.Association of potato psyllid (Bactericera cockerelli; Hemiptera: Triozidae) with Lycium spp. (Solanaceae) in potato growing regions of Washington, Idaho, and Oregon-(Peer Reviewed Journal) Thinakaran, J., Horton, D.R., Cooper, W.R., Jensen, A., Wohleb, C., Dahan, J., Mustafa, T., Karasev, A., Munyaneza, J.E. 2017. Association of potato psyllid (Bactericera cockerelli; Hemiptera: Triozidae) with Lycium spp. (Solanaceae) in potato growing regions of Washington, Idaho, and Oregon. American Journal of Potato Research. 94(5):490-499. https://doi.org/10.1007/s12230-017-9586-0.Elicitors of host plant defenses partially suppress pear psylla (Cacopsylla pyricola, Hemiptera: Psyllidae) populations under field conditions-(Peer Reviewed Journal) Cooper, W.R., Horton, D.R. 2017. Elicitors of host plant defenses partially suppress pear psylla (Cacopsylla pyricola, Hemiptera: Psyllidae) populations under field conditions. Journal of Insect Science. 17(2):49.Collection of salivary proteins of psyllids (Hemiptera: Psylloidea)-(Peer Reviewed Journal) Jimenez, F., Cooper, W.R., Garczynski, S.F., Puterka, G.J., Barcenas, N. 2017. Collection of salivary proteins of psyllids (Hemiptera: Psylloidea). Journal of Entomological Science. 52:201-206.Bacterial endosymbionts of the psyllid Cacopsylla pyricola in the Pacific Northwestern United States (Hemiptera: Psyllidae)-(Peer Reviewed Journal) Cooper, W.R., Garczynski, S.F., Horton, D.R., Unruh, T.R., Beers, E., Shearer, P., Hilton, R. 2017. Bacterial endosymbionts of the psyllid Cacopsylla pyricola in the Pacific Northwestern United States (Hemiptera: Psyllidae). Environmental Entomology. 46:393-402."Candidatus Liberibacter solanacearum” associated with the psyllid, Bactericera maculipennis (Hemiptera: Triozidae)-(Peer Reviewed Journal) Borges, K.M., Cooper, W.R., Garczynski, S.F., Thinakaran, J., Jensen, A., Horton, D.R., Munyaneza, J.E., Cueva, I., Barcenas, N. 2017. "Candidatus Liberibacter solanacearum” associated with the psyllid, Bactericera maculipennis (Hemiptera: Triozidae). Environmental Entomology. 46:210-216.New geographic records for the Nearctic psyllid Bactericera maculipennis (Crawford) with biological notes and descriptions of the egg and fifth-instar nymph (Hemiptera: Psylloidea: Triozidae)-(Peer Reviewed Journal) Horton, D.R., Miliczky, E., Lewis, T.M., Cooper, W.R., Munyaneza, J.E., Mustafa, T., Thinakaran, J., Waters, T., Wohleb, C., Jensen, A. 2017. New geographic records for the Nearctic psyllid Bactericera maculipennis (Crawford) with biological notes and descriptions of the egg and fifth-instar nymph (Hemiptera: Psylloidea: Triozidae). Entomological Society of America Proceedings. 119(2):191-214.Matrimony vine and potato psyllid in the Pacific Northwest: a worrisome marriage?-(Trade Journal) Horton, D.R., Thinakaran, J., Cooper, W.R., Munyaneza, J.E., Wohleb, C., Waters, T., Snyder, W., Fu, Z., Crowder, D., Jensen, A. 2016. Matrimony vine and potato psyllid in the Pacific Northwest: a worrisome marriage?. Potato Progress. 16:14.Gut content analysis of a phloem-feeding insect, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae)-(Peer Reviewed Journal) Cooper, W.R., Horton, D.R., Unruh, T.R., Garczynski, S.F. 2016. Gut content analysis of a phloem-feeding insect, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae). Environmental Entomology. 45:938-944.Bindweed Psyllid: Biology, Natural History, and Interactions with the Zebra Chip Pathogen-(Proceedings) Cooper, W.R.,  Jensen, A., Barcenas, N. 2016. Bindweed Psyllid: Biology, Natural History, and Interactions with the Zebra Chip Pathogen. Meeting Proceedings. WA/OR Potato Conference pp. 7-9. January 26-28, 2016 Kennewick, WA.Variation in susceptibility to potato psyllid, Bactericera cockerelli (Hemiptera: Triozidae),among Solanum verrucosum germplasm accessions-(Peer Reviewed Journal) Cooper, W.R., Bamberg, J.B. 2016. Variation in susceptibility to potato psyllid, Bactericera cockerelli (Hemiptera: Triozidae),among Solanum verrucosum germplasm accessions. American Journal of Potato Research. 93:386-391.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.Effects of elicitors of host plant defenses on pear psylla (Cacopsylla pyricola: Psyllidae)-(Peer Reviewed Journal) Cooper, W.R., Horton, D.R. 2015. Effects of elicitors of host plant defenses on pear psylla (Cacopsylla pyricola: Psyllidae). Entomologia Experimentalis et Applicata. 157:300-306.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.Relative abundance of Carsonella ruddii (Gamma Proteobacterium) in females and males of Cacopsylla pyricola (Hemiptera: Psyllidae) and Bactericera cockerelli (Hemiptera: Triozidae)-(Peer Reviewed Journal) Cooper, W.R., Garczynski, S.F., Horton, D.R. 2015. Relative abundance of Carsonella ruddii (Gamma Proteobacterium) in females and males of Cacopsylla pyricola (Hemiptera: Psyllidae) and Bactericera cockerelli (Hemiptera: Triozidae). Journal of Insect Science. 15:65.Matrimony vine/Goji berries – potential overwintering host for potato psyllids in the Pacific Northwest-(Proceedings) Thinakaran, J., Cooper, W.R., Munyaneza, J.E., Horton, D.R. 2015. Matrimony vine/Goji berries – potential overwintering host for potato psyllids in the Pacific Northwest. Meeting Proceedings. Pp 76-79.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 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.Temperature-dependent survival of adult Lygus hesperus (Hemiptera: Miridae)-(Peer Reviewed Journal) Cooper, W.R., Spurgeon, D.W. 2015. Temperature-dependent survival of adult Lygus hesperus (Hemiptera: Miridae). Environmental Entomology. 44:808-813.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.Relationship between plant vascular architecture and within-plant distribution of 'Candidatus Liberibacter solanacearum' in potato-(Peer Reviewed Journal) Cooper, W.R., Acala, P.E., Barcenas, N.M. 2015. Relationship between plant vascular architecture and within-plant distribution of 'Candidatus Liberibacter solanacearum' in potato. American Journal of Potato Research. 92:91-99.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.Characterization of eight Russian wheat aphid (Hemiptera: Aphididae) biotypes using two-category resistant-susceptible plant responses-(Peer Reviewed Journal) Puterka, G.J., Nicholson, S.J., Brown, M.J., Cooper, W.R., Peairs, F.B., Randolph, T.L. 2014. Characterization of eight Russian wheat aphid (Hemiptera: Aphididae) biotypes using two-category resistant-susceptible plant responses. Journal of Economic Entomology. 107(3):1274-1283.Variation in Bactericera cockerelli (Hemiptera: Triozidae) oviposition, survival, and development on Solanum bulbocastanum germplasm-(Peer Reviewed Journal) Cooper, W.R., Bamberg, J.B. 2014. Variation in Bactericera cockerelli (Hemiptera: Triozidae) oviposition, survival, and development on Solanum bulbocastanum germplasm. American Journal of Potato Research. DOI 10.1007/s12230-014-9384-x.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.Matryoshka: A new floral mutant in wild potato-(Peer Reviewed Journal) Bamberg, J.B., Suriano, J., del Rio, A., Cooper, W.Rodney, Abad, J., Fernandez, C. 2014. Matryoshka: A new floral mutant in wild potato. American Journal of Potato Research. 91(5):500-503.Localization of 'Candidatus Liberibacter solanacearum' in Bactericera cockerelli (Hemiptera: Triozidae)-(Peer Reviewed Journal) Cooper, W.R., Sengoda, V.G., Munyaneza, J.E. 2014. Localization of 'Candidatus Liberibacter solanacearum' in Bactericera cockerelli (Hemiptera: Triozidae). Annals of the Entomological Society of America. 107(1):204-210.Potential transmission of Pantoea spp. and Serratia marcescens (Enterobacteriales: Enterobacteriaceae) to plants by Lygus hesperus (Hemiptera: Miridae)-(Peer Reviewed Journal) Cooper, W.R., Nicholson, S.J., Puterka, G.J. 2014. Potential transmission of Pantoea spp. and Serratia marcescens (Enterobacteriales: Enterobacteriaceae) to plants by Lygus hesperus (Hemiptera: Miridae). Journal of Economic Entomology. 107(1):63-65.Gender- and species-specific characteristics of bacteriomes from three psyllid species (Hemiptera: Psylloidae)-(Peer Reviewed Journal) Cooper, W.R., Horton, D.R. 2014. Gender- and species-specific characteristics of bacteriomes from three psyllid species (Hemiptera: Psylloidae). Journal of Entomological Science. 49(2):190-194.Feeding injury to cotton caused by Lygus hesperus (Hemiptera: Miridae) nymphs and prereproductive adults-(Peer Reviewed Journal) Cooper, W.R., Spurgeon, D.W. 2013. Feeding injury to cotton caused by Lygus hesperus (Hemiptera: Miridae) nymphs and prereproductive adults. Environmental Entomology. 42(5):967-972.Matryoshka: A new floral mutant in wild potato-(Proceedings) Bamberg, J.B., Suriano, J., Del Rio, A.H., Cooper, W.R. 2014. Matryoshka: A new floral mutant in wild potato. American Journal of Potato Research. 91(1):32-74.Response by Lygus hesperus (Hemiptera: Miridae) adults to salivary preconditioning of cotton squares-(Peer Reviewed Journal) Cooper, W.R., Spurgeon, D.W. 2013. Response by Lygus hesperus (Hemiptera: Miridae) adults to salivary preconditioning of cotton squares. Journal of Entomological Science. 48(3):261-264.Marked insects released in recapture studies may influence population estimates of native insects-(Proceedings) Spurgeon, D.W., Cooper, W.R. 2013. Marked insects released in recapture studies may influence population estimates of native insects. National Cotton Council Beltwide Cotton Conference. Pp. 1156-1161. In Proc. Beltwide Cotton Conf., National Cotton Council, Memphis, TN.Sweepnet captures of Lygus hesperus (Hemiptera:Miridae) adult genders and age-classes in cotton-(Peer Reviewed Journal) Spurgeon, D.W., Cooper, W.R. 2013. Sweepnet captures of Lygus hesperus (Hemiptera:Miridae) adult genders and age-classes in cotton. Journal of Entomological Science. 48(3):195-205.Temperature-dependent egg development of Lygus hesperus (Hemiptera: Miridae)-(Peer Reviewed Journal) Cooper, W.R., Spurgeon, D.W. 2013. Temperature-dependent egg development of Lygus hesperus (Hemiptera: Miridae). Journal of Economic Entomology. 106(1):124-130.Disinfestation of Beauveria bassiana from adult Lygus hesperus using ultraviolet-C radiation-(Peer Reviewed Journal) Spurgeon, D.W., Cooper, W.R. 2012. Disinfestation of Beauveria bassiana from adult Lygus hesperus using ultraviolet-C radiation. Southwest Entomology. 37(4):449-457.Feeding behavior and injury caused by Lygus hesperus-(Abstract Only)Salivary proteins of Lygus hesperus (Hemiptera: Miridae)-(Peer Reviewed Journal) Cooper, W.R., Nicholson, S.J., Puterka, G.J. 2013. Salivary proteins of Lygus hesperus (Hemiptera: Miridae). Annals of the Entomological Society of America. 106(1):86-92. DOI: http://dx.doi.org/10.1603/AN12096.Temperature-dependent reproductive development of Lygus hesperus (Hemiptera: Miridae)-(Peer Reviewed Journal) Spurgeon, D.W., Cooper, W.R. 2012. Temperature-dependent reproductive development of Lygus hesperus (Hemiptera: Miridae). Environmental Entomology. 41(4):941-949.Temperature dependent development of Lygus hesperus (Hemiptera: Miridae) nymphs-(Peer Reviewed Journal) Cooper, W.R., Spurgeon, D.W. 2012. Temperature dependent development of Lygus hesperus (Hemiptera: Miridae) nymphs. Journal of Economic Entomology. 105: 860-865.External visibility of spermatophores as an indicator of mating status of Lygus hesperus (Hemiptera: Miridae) females-(Peer Reviewed Journal) Cooper, W.R. 2012. External visibility of spermatophores as an indicator of mating status of Lygus hesperus (Hemiptera: Miridae) females. Journal of Entomological Science. 47(4):285-290.Injury to cotton by adult Lygus hesperus (Hemiptera: Miridae) of different gender and reproductive states-(Peer Reviewed Journal) Cooper, W.R., Spurgeon, D.W. 2012. Injury to cotton by adult Lygus hesperus (Hemiptera: Miridae) of different gender and reproductive states. Environ. Entomol. 41:342-348.Oviposition behaviors and ontogenetic embryonic characteristics of the western tarnished plant bug, Lygus hesperus-(Peer Reviewed Journal) Cooper, W.R., Spurgeon, D.W. 2012. Oviposition behaviors and ontogenetic embryonic characteristics of the western tarnished plant bug, Lygus hesperus. Journal of Insect Science. 12:36.XX1 Asian chestnut gall wasp (Dryocosmus kuriphilus) (Hymenoptera: Cynipidae)-(Book / Chapter) Rieske, L.K., Cooper, W.R. 2014. XXI Asian chestnut gall wasp (Dryocosmus kuriphilus) (Hymenoptera: Cynipidae). In:Van Driesche, R.G., Reardon, R., editors. Use of classical biological control to preserve natice US and Canadian forests. Morgantown, West Virginia:Forest Health Technology Enterprise Team. p. 237-242.A native and an introduced parasitoid utilize an exotic gall-maker host-(Peer Reviewed Journal) Cooper, W.R., Rieske, L.K. 2011. A native and an introduced parasitoid utilize an exotic gall-maker host. Biocontrol. 56(5):725-734.Chestnut species and jasmonic acid treatment influence development and community interactions of galls produced by the Asian chestnut gall wasp, Dryocosmus kuriphilus-(Peer Reviewed Journal) Cooper, W.R., Kinney, L.R. 2011. Chestnut species and jasmonic acid treatment influence development and community interactions of galls produced by the Asian chestnut gall wasp, Dryocosmus kuriphilus. Journal of Insect Science 11:140.Cyclical partenogenetic reproduction in the Russian wheat aphid (Hemiptera: Aphididae) in the United States: Sexual reproduction and its outcome on biotypic diversity-(Peer Reviewed Journal) Puterka, G.J., Hammon, R.M., Burd, J.D., Peairs, F., Randolph, T., Cooper, W.R. 2012. Cyclical partenogenetic reproduction in the Russian wheat aphid (Hemiptera: Aphididae) in the United States: Sexual reproduction and its outcome on biotypic diversity. Journal of Economic Entomology. 105(3):1057-1068.Feeding injury to cotton caused by Lygus hesperus (Hemiptera: Miridae) adults of different reproductive states-(Proceedings) Cooper, W.R., Spurgeon, D.W. 2011. Feeding injury to cotton caused by Lygus hesperus (Hemiptera: Miridae) adults of different reproductive states. National Cotton Council, Memphis, TN. pp. 1215-1218.Preliminary evaluation of drop cloth sampling efficiency for lygus adults in cotton-(Proceedings) Spurgeon, D.W., Cooper, W.R. 2011. Preliminary evaluation of drop cloth sampling efficiency for lygus adults in cotton. National Cotton Council, Memphis, TN. pp. 804-809.Laboratory studies of variations in feeding behaviors among Lygus hesperus Knight (Hemiptera: Miridae) of different gender and reproductive states-(Peer Reviewed Journal) Cooper, W.R., Spurgeon, D.W. 2011. Laboratory studies of variations in feeding behaviors among Lygus hesperus Knight (Hemiptera: Miridae) of different gender and reproductive states. Environmental Entomology. 40(2):367-373.Among-sampler variation in sweep net samples of adult Lygus hesperus (Hemiptera: Miridae) in cotton-(Peer Reviewed Journal) Spurgeon, D.W., Cooper, W.R. 2011. Among-sampler variation in sweep net samples of adult Lygus hesperus (Hemiptera: Miridae) in cotton. J. Econ. Entomol. 104:685-692.Comparisons of salivary proteins from five aphid (Hemiptera: Aphididae) species-(Peer Reviewed Journal) Cooper, W.R., Dillwith, J.W., Puterka, G.J. 2011. Comparisons of salivary proteins from five aphid (Hemiptera: Aphididae) species. Environmental Entomology. 40:151-156.Host associations and incidence of Diuraphis spp. in the Rocky Mountain region of the United States, and pictorial key for their identification-(Peer Reviewed Journal) Puterka, G.J., Hammon, R., Burd, J.D., Peairs, F., Randolph, T., Cooper, W.R. 2010. Host associations and incidence of Diuraphis spp. in the Rocky Mountain region of the United States, and pictorial key for their identification. Journal of Economic Entomology. 103(5):1875-1885.Sweep net recapture of marked Lygus hesperus Knight (Hemiptera: Miridae) adults after different release times in cotton-(Peer Reviewed Journal) Cooper, W.R., Spurgeon, D.W. 2010. Sweep net recapture of marked Lygus hesperus Knight (Hemiptera: Miridae) adults after different release times in cotton. Journal of Cotton Science. 14:131-137.USDA-ARS Research Highlights: Western Tarnished Plant Bug Ecology and Behavior.-(Popular Publication) Cooper, W.R. 2010. USDA-ARS Research Highlights: Western Tarnished Plant Bug Ecology and Behavior. Central Coast Agriculture Highlights June 2010 Newsletter.Gall structure affects ecological associations of Dryocosmus kuriphilus Yasumatsu (Hymenoptera: Cynipidae).-(Peer Reviewed Journal) Cooper, W.R., Rieske, L.K. 2010. Gall structure affects ecological associations of Dryocosmus kuriphilus Yasumatsu (Hymenoptera: Cynipidae). Environ. Entomol. 39(3): 787-797.Variation among samplers using the sweep net for Lygus hesperus adults in cotton.-(Proceedings) Spurgeon, D.W., Cooper, W.R. 2010. Variation among samplers using the sweep net for Lygus hesperus adults in cotton. National Cotton Council, Memphis, TN. pp. 1219-1224.Use of video assays to assess feeding behavior by Lygus hesperus Knight (Hemiptera: Miridae).-(Proceedings) Cooper, W.R., Spurgeon, D.W. 2010. Use of video assays to assess feeding behavior by Lygus hesperus Knight (Hemiptera: Miridae). National Cotton Council, Memphis, TN. pp. 1306-1311.Relative attractiveness of colour traps to pear psylla in relation to seasonal changes in pear phenology-(Peer Reviewed Journal) Cooper, W.R., Puterka, G.J., Glenn, D.M. 2010. Relative attractiveness of colour traps to pear psylla in relation to seasonal changes in pear phenology. The Canadian Entomologist. 142(2):188-191.Salivary proteins of Russian wheat aphid (Hempitera: Aphididae)-(Peer Reviewed Journal) Cooper, W.R., Dillwith, J.W., Puterka, G.J. 2010. Salivary proteins of Russian wheat aphid (Hempitera: Aphididae). Environmental Entomology. 39(1):223-231.Woody stem galls interact with foliage to affect community associations-(Peer Reviewed Journal) Cooper, W.R., Rieske, L.K. 2009. Woody stem galls interact with foliage to affect community associations. Environmental Entomology. 38(2):417-424.


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