U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 Edward T. Schafer Agricultural Research Center: Fargo, ND
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    Careers


        


                    ETSARC Research Units
                        ETSARC Home page
                                    Office of the Center Director
                                    Location Support Staff
                                    Animal Metabolism-Agricultural Chemicals Research
                                    Cereal Crops Research
                                    Insect Genetics and Biochemistry Research
                                    Sugarbeet and Potato Research
                                    Sunflower and Plant Biology Research
                                    Pulse Crop Health Initiative
                                    National Sclerotinia InitiativeSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Plains Area Fargo, North Dakota Edward T. Schafer Agricultural Research Center People & Locations







Jarrad R Prasifka

                                                                (PhD)
                        Edward T. Schafer Agricultural Research Center

                        




                        
                        Research Entomologist
                        Phone: (701) 239-1313
                        
                        
                        Fax: (701) 239-1346(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)
                            ProjectsSunflower Yield, Crop Quality, and Interactions with Biotic and Abiotic Stressors
                                                    In-House Appropriated
                                                                    (D)Accession Number: 445350Nutritional Analysis of Pollen from Bee Pollinated Plants
                                                    Interagency Reimbursable Agreement
                                                                    (I)Accession Number: 442675Red Sunflower Seed Weevil Responses to Conspecific and Host Volatiles
                                                    Non-Assistance Cooperative Agreement
                                                                    (S)Accession Number: 443708Predictive Crop Performance Research Initiative
                                                    Non-Assistance Cooperative Agreement
                                                                    (S)Accession Number: 444444Application of Sensors and Image Analysis to Improve Phenotyping Throughput of Sunflower Germplasm
                                                    Non-Assistance Cooperative Agreement
                                                                    (S)Accession Number: 444544Next Generation Sequencing of the USDA Sunflower Breeding Program and Identification of Red Sunflower Seed Weevil Resistance Genes
                                                    Non-Assistance Cooperative Agreement
                                                                    (S)Accession Number: 444659Insect Responses to Intraspecific Floral Trait Variation in Asteraceae
                                                    Non-Assistance Cooperative Agreement
                                                                    (S)Accession Number: 445009Integrated Pest Management of Sunflower Insects
                                                    Non-Assistance Cooperative Agreement
                                                                    (S)Accession Number: 438009Sunflower Pollinator Foraging on Non-Helianthus Plants
                                                    Non-Assistance Cooperative Agreement
                                                                    (S)Accession Number: 441964**Publications**
                                                (Clicking on the reprint icon
                                                    Reprint Icon
                                                    will take you to the publication reprint.)Honey bee (Apis mellifera L.) foraging rewards in sunflowers: effect of floral traits on visitation and variation in pollen quality

- (Peer Reviewed Journal)Pollen quantity, but not grain size, is correlated with floret size in in cultivated sunflower, Helianthus annuus L.
                                                        

- (Peer Reviewed Journal)Prasifka, J.R., Portlas, Z.M., Hulke, B.S. 2023. Pollen quantity, but not grain size, is correlated with floret size in in cultivated sunflower, Helianthus annuus L.. Plant Genetic Resources. 2023. https://doi.org/10.1017/S1479262123000709.Impact of multiple soil microbial inoculants on biomass and biomass allocation on the legume crop field pea (Fabaceae: Pisum sativum L.)
                                                        

- (Peer Reviewed Journal)Glogoza, B., Aldrich-Wolfe, L., Prasifka, J.R., Prischmann-Voldseth, D.A. 2023. Impact of multiple soil microbial inoculants on biomass and biomass allocation on the legume crop field pea (Fabaceae: Pisum sativum L.). Journal of Sustainable Agriculture. 1-14. http://doi.org/10.1002/sae2.12060.Thermal biology and overwintering behavior of the red sunflower seed weevil (Coleoptera: Curculionidae)

- (Peer Reviewed Journal)Pantzke, S., Ferguson, B., Rajamohan, A., Rinehart, J.P., Prischmann-Voldseth, D., Prasifka, J.R. 2023. Thermal biology and overwintering behavior of the red sunflower seed weevil (Coleoptera: Curculionidae). Environmental Entomology. https://doi.org/10.1093/ee/nvad041.Genotype and environment effects on sunflower nectar and their relationships to crop pollination
                                                        

- (Peer Reviewed Journal)Prasifka, J.R., Yoshimura Ferguson, M.E., Fugate, K.K. 2023. Genotype and environment effects on sunflower nectar and their relationships to crop pollination. Journal of Pollination Ecology. 33(4):54-63. https://doi.org/10.26786/1920-7603(2023)719.Genetic mapping of a pollinator preference trait: Nectar volume in sunflower (Helianthus annuus L.)
                                                        

- (Peer Reviewed Journal)Barstow, A., Prasifka, J.R., Attia, Z., Kane, N.C., Hulke, B.S. 2022. Genetic mapping of a pollinator preference trait: Nectar volume in sunflower (Helianthus annuus L.). Frontiers in Plant Science. 13(2022). https://doi.org/10.3389/fpls.2022.1056278.Degree-day model for adult emergence of the red sunflower seed weevil

- (Abstract Only)Vitrification of lepidopteran embryos - a simple protocol to cryopreserve the embryos of the sunflower moth, Homoeosoma electellum
                                                        

- (Peer Reviewed Journal)Rajamohan, A., Prasifka, J.R., Rinehart, J.P. 2022. Vitrification of lepidopteran embryos - a simple protocol to cryopreserve the embryos of the sunflower moth, Homoeosoma electellum. Insects. 13(10). Article 959. https://doi.org/10.3390/insects13100959.Changes to architecture of Silphium integrifolium Michx. during domestication reveal new trade-offs for yield
                                                        

- (Peer Reviewed Journal)Prasifka, J.R., Peterson, K., Mallinger, R.E., Van Tassel, D. 2022. Changes to architecture of Silphium integrifolium Michx. during domestication reveal new trade-offs for yield. Crop Science. 62:1060-1068.  https://doi.org/10.1002/csc2.20737.Pollinator responses to variation in sunflower crop traits

- (Abstract Only)Bee community interactions: observations in foraging on commercial sunflowers

- (Abstract Only)Overwintering, freezing point, and thermal biology of the red sunflower seed weevil, Smicronyx fulvus LeConte

- (Abstract Only)Bee community composition, but not diversity, is influenced by floret size in cultivated sunflowers
                                                        

- (Peer Reviewed Journal)Yoshimura Ferguson, M.E., Mallinger, R., Prasifka, J.R. 2021. Bee community composition, but not diversity, is influenced by floret size in cultivated sunflowers. Apidologie. 52:1210-1222. https://doi.org/10.1007/s13592-021-00897-z.Testing for evolutionary change in restoration: A genomic comparison between ex situ, native and commercial seed sources of Helianthus maximiliani

- (Pre-print Publication)Testing for evolutionary change in restoration: a genomic comparison between ex situ, native and commercial seed sources of Helianthus maximiliani
                                                        

- (Peer Reviewed Journal)Braasch, J.E., Di Santo, L.N., Tarble, Z., Prasifka, J.R., Hamilton, J.A. 2021. Testing for evolutionary change in restoration: a genomic comparison between ex situ, native and commercial seed sources of Helianthus maximiliani. Evolutionary Applications. 14:2206-2220. http://dx.doi.org/10.1111/eva.13275.Fatty acid data and crop surveys indicate sources of red seed weevil populations and suggest strategies for management

- (Abstract Only)Prasifka, J.R., Anderson, J.V. 2020. Fatty acid data and crop surveys indicate sources of red seed weevil populations and suggest strategies for management[abstract]. National Sunflower Association. 90:18.Fatty acid data and crop surveys indicate sources of red sunflower seed weevil, Smicronyx fulvus LeConte (Coleoptera: Curculionidae), populations and suggest strategies for management
                                                        

- (Peer Reviewed Journal)Prasifka, J.R., Ferguson, B., Anderson, J.V. 2020. Fatty acid data and crop surveys indicate sources of red sunflower seed weevil, Smicronyx fulvus LeConte (Coleoptera: Curculionidae), populations and suggest strategies for management. Environmental Entomology. 50(1):154-159. https://doi.org/10.1093/ee/nvaa158.Susceptibility of sunflower inbred lines and putative resistance sources to Smicronyx fulvus LeConte (Coleoptera: Curculionidae)
                                                        

- (Peer Reviewed Journal)Prasifka, J.R. 2020. Susceptibility of sunflower inbred lines and putative resistance sources to Smicronyx fulvus LeConte (Coleoptera: Curculionidae). Journal of Applied Entomology. 144(7):632-636. https://doi.org/10.1111/jen.12772.Registration of oilseed sunflower maintainer germplasm HA 488, with resistance to the red sunflower seed weevil
                                                        

- (Peer Reviewed Journal)DeGreef, M.G., Prasifka, J.R., Koehler, B.D., Hulke, B.S. 2020. Registration of oilseed sunflower maintainer germplasm HA 488, with resistance to the red sunflower seed weevil. Journal of Plant Registrations. 14:203-205. https://doi.org/10.1002/plr2.20035.Registration of oilseed sunflower maintainer germplasm HA 489, with resistance to the banded sunflower moth
                                                        

- (Peer Reviewed Journal)Wronski, A.R., Prasifka, J.R., Grove, M.S., Koehler, B.D., Misar, C.G., Underwood, W., Hulke, B.S. 2020. Registration of oilseed sunflower maintainer germplasm HA 489, with resistance to the banded sunflower moth. Journal of Plant Registrations. 14:197-202. https://doi.org/10.1002/plr2.20030.Capitate glandular trichomes fail to provide significant resistance to banded sunflower moth (Lepidoptera: Tortricidae)
                                                        

- (Peer Reviewed Journal)Prasifka, J.R., Hulke, B.S. 2020. Capitate glandular trichomes fail to provide significant resistance to banded sunflower moth (Lepidoptera: Tortricidae). Environmental Entomology. 49(2):444-448. https://doi.org/10.1093/ee/nvaa002.Updates on sunflower pollinator research: understanding interactions of plant phenotype, environment, and pollinator identity

- (Abstract Only)Ferguson, B., Hulke, B.S., Prasifka, J.R. 2020. Updates on sunflower pollinator research: understanding interactions of plant phenotype, environment, and pollinator identity [abstract]. National Sunflower Association Research Forum. 90:19.Banded sunflower moth

- (Experiment Station)Knodel, J.J., Prasifka, J.R. 2019. Banded sunflower moth. Extension Publications. 1-8.Pest potential of Neotephritis finalis (Loew) on Silphium integrifolium Michx., Silphium perfoliatum L., and interspecific hybrids
                                                        

- (Peer Reviewed Journal)Reinert, S., Hulke, B.S., Prasifka, J.R. 2020. Pest potential of Neotephritis finalis (Loew) on Silphium integrifolium Michx., Silphium perfoliatum L., and interspecific hybrids. Agronomy Journal. 112:1462-1465. https://doi.org/10.1002/agj2.20078.Seed and floret size parameters of sunflower are determined by partially overlapping sets of quantitative trait loci with epistatic interactions
                                                        

- (Peer Reviewed Journal)Reinert, S., Gao, Q., Ferguson, M.E., Portlas, Z., Prasifka, J.R., Hulke, B.S. 2019. Seed and floret size parameters of sunflower are determined by partially overlapping sets of quantitative trait loci with epistatic interactions. Molecular Genetics and Genomics. 295:143-154. https://doi.org/10.1007/s00438-019-01610-7.Concentrations of sunflower phenolics appear insufficient to explain resistance to floret- and seed-feeding caterpillars
                                                        

- (Peer Reviewed Journal)Prasifka, J.R., Wallis, C.M. 2019. Concentrations of sunflower phenolics appear insufficient to explain resistance to floret- and seed-feeding caterpillars. Arthropod-Plant Interactions. 13:915-921. https://doi.org/10.1007/s11829-019-09706-y.Fatty acid composition and crop survey data indicate sources of red sunflower seed weevil infestations and have implications for IPM and IRM

- (Abstract Only)Prasifka, J.R., Anderson, J.V. 2019. Fatty acid composition and crop survey data indicate sources of red sunflower seed weevil infestations and have implications for IPM and IRM [abstract]. Entomological Society of America. 0590.Cochylis hospes (Lepidoptera: Tortricidae) damage to male lines varies significantly and inbred susceptibility predicts damage to hybrids
                                                        

- (Peer Reviewed Journal)Prasifka, J.R. 2019. Cochylis hospes (Lepidoptera: Tortricidae) damage to male lines varies significantly and inbred susceptibility predicts damage to hybrids. The Canadian Entomologist. 151:817-823.Annual cover crops for managed and wild bees: Optimal plant mixtures depend on pollinator enhancement goals
                                                        

- (Peer Reviewed Journal)Mallinger, R., Franco Jr, J.G., Prischmann-Voldseth, D.A., Prasifka, J.R. 2018. Annual cover crops for managed and wild bees: Optimal plant mixtures depend on pollinator enhancement goals. Agriculture, Ecosystems and Environment. 273(1):107-116. https://doi.org/10.1016/j.agee.2018.12.006.Native solitary bees provide economically significant pollination services to confection sunflowers (Helianthus annuusL.) (Asterales:Asteraceae) grown across the northern Great Plains
                                                        

- (Peer Reviewed Journal)Mallinger, R.E., Bradshaw, J., Varenhorst, A.J., Prasifka, J.R. 2018. Native solitary bees provide economically significant pollination services to confection sunflowers (Helianthus annuusL.) (Asterales:Asteraceae) grown across the northern Great Plains. Journal of Economic Entomology. https://doi.org/10.1093/jee/toy322.Sunflower floral dimension measurements using digital image processing
                                                        

- (Peer Reviewed Journal)Shajahan, S., Navaneeth, S., Babu, D., Cannayen, I., Franco Jr, J.G., Mallinger, R.E., Prasifka, J.R., Archer, D.W. 2018. Sunflower floral dimension measurements using digital image processing. Computers and Electronics in Agriculture. 151:403-415. https://doi.org/10.1016/j.compag.2018.06.026.Using nectar-related traits to enhance crop-pollinator interactions
                                                        

- (Peer Reviewed Journal)Prasifka, J.R., Mallinger, R.E., Portlas, Z.M., Hulke, B.S., Fugate, K.K., Paradis, T., Hampton, M.E., Carter, C.J. 2018. Using nectar-related traits to enhance crop-pollinator interactions. Frontiers in Plant Science. https://doi.org/10.3389/fpls.2018.00812.Phenotypic integration in an extended phenotype: among-individual variation in nest-building traits of the alfalfa leafcutting bee (Megachile rotundata)
                                                        

- (Peer Reviewed Journal)Royaute, R., Wilson, E.S., Helm, B.R., Mallinger, R.E., Prasifka, J.R., Greenlee, K.J., Bowsher, J.H. 2018. Phenotypic integration in an extended phenotype: among-individual variation in nest-building traits of the alfalfa leafcutting bee (Megachile rotundata). Journal of Evolutionary Biology. https://doi.org/10.1111/jeb.13259.Variation in floret size explains differences in wild bee visitation to cultivated sunflowers

- (Peer Reviewed Journal)Portlas, Z.M., Tetlie, J.R., Prischmann-Voldseth, D., Hulke, B.S., Prasifka, J.R. 2018. Variation in floret size explains differences in wild bee visitation to cultivated sunflowers. Plant Genetic Resources. https://doi.org/10.1017/S1479262118000072.Genetic architecture of capitate glandular trichome density in florets of domesticated sunflower (Helianthus annuus L.)
                                                        

- (Peer Reviewed Journal)Gao, Q.M., Kane, N.C., Hulke, B.S., Reinert, S., Pogoda, C.S., Tittes, S., Prasifka, J.R. 2018. Genetic architecture of capitate glandular trichome density in florets of domesticated sunflower (Helianthus annuus L.). Frontiers in Plant Science. https://doi.org/10.3389/fpls.2017.02227.Benefits of insect pollination to confection sunflowers differ across plant genotypes
                                                        

- (Peer Reviewed Journal)Mallinger, R.E., Prasifka, J.R. 2017. Benefits of insect pollination to confection sunflowers differ across plant genotypes. Crop Science. 57(6):3264-3272. https://doi.org/10.2135/cropsci2017.03.0148.Reassessment of resistance to sunflower stem weevil, Cylindrocopterus adspersus LeConte (Coleoptera: Curculionidae), in cultivated sunflower germplasm
                                                        

- (Peer Reviewed Journal)Prasifka, J.R., Bradshaw, J.D., Aiken, R.M. 2018. Reassessment of resistance to sunflower stem weevil, Cylindrocopterus adspersus LeConte (Coleoptera: Curculionidae), in cultivated sunflower germplasm. Journal of Kansas Entomological Society. 90(3):204-210. https://doi.org/10.2317/0022-8567-90.3.204.Plant-herbivore and plant-pollinator interactions of the developing perennial oilseed crop, Silphium integrifolium
                                                        

- (Peer Reviewed Journal)Prasifka, J.R., Mallinger, R.E., Hulke, B.S., Larson, S.R., Van Tassel, D. 2017. Plant-herbivore and plant-pollinator interactions of the developing perennial oilseed crop, Silphium integrifolium. Environmental Entomology. 46(6):1339-1345. https://doi.org/10.1093/ee/nvx134.Accelerating Silphium domestication: an opportunity to develop new crop ideotypes and breeding strategies informed by multiple disciplines

- (Review Article)Van Tassel, D.L., Albrecht, K.A., Bever, J.D., Boe, A.A., Brandvain, Y., Crews, T.E., Gansberger, M., Gerstberg, P., Gonzalez-Paleo, L., Hulke, B.S., Kane, N.C., Johnson, P.J., Pestsova, E.G., Picasso Risso, V.D., Prasifka, J.R., Ravetta, D.A., Schlautman, B., Sheaffer, C.C., Smith, K.P., Speranza, P.R., Turner, M.K., Vilela, A.E., von Gehren, P., Weaver, C. 2017. Accelerating Silphium domestication: an opportunity to develop new crop ideotypes and breeding strategies informed by multiple disciplines. Crop Science. 57(3):1274-1284.Bee visitation rates to cultivated sunflowers increase with the amount and accessibility of nectar sugars

- (Peer Reviewed Journal)Mallinger, R.E., Prasifka, J.R. 2017. Bee visitation rates to cultivated sunflowers increase with the amount and accessibility of nectar sugars. Journal of Applied Entomology. 141(7):561-573.Effects from early planting of late-maturing sunflowers on damage from primary insect pests in the United States

- (Peer Reviewed Journal)Prasifka, J.R., Marek, L., Lee, D., Thapa, S., Hahn, V., Bradshaw, J. 2016. Effects from early planting of late-maturing sunflowers on damage from primary insect pests in the United States. Helia. 39(63):45-56.Relative susceptibility of sunflower maintainer lines and resistance sources to natural infestations of the banded sunflower moth (Lepidoptera: Tortricidae)

- (Peer Reviewed Journal)Prasifka, J.R., Hulke, B.S. 2016. Relative susceptibility of sunflower maintainer lines and resistance sources to natural infestations of the banded sunflower moth (Lepidoptera: Tortricidae). The Canadian Entomologist. 148:736-741.Efficacy of insecticides to limit caterpillar damage to prairie cordgrass seed

- (Peer Reviewed Journal)Prasifka, J.R., Prasifka, P.L., Lee, D.K. 2016. Efficacy of insecticides to limit caterpillar damage to prairie cordgrass seed. Arthropod Management Tests. 41(1):tsw030. doi:10.1093/amt/tsw030.Susceptibility of sunflower inbreds to Melanagromyza minimoides in Argentina and potential association with plant resistance traits

- (Peer Reviewed Journal)Prasifka, J.R., Bazzalo, M.E. 2016. Susceptibility of sunflower inbreds to Melanagromyza minimoides in Argentina and potential association with plant resistance traits. International Journal of Pest Management. 62(2):105-110.Sunflower insect pests

- (Book / Chapter)Bradshaw, J.D., Prasifka, J.R., Knodel, J.J. and Michaud, J.P.  2016. Insect Pests. In: Harveson, R.M., Markell, S.G., Block, C.C., Gulya, T.J. editors. Compendium of Sunflower Diseases and Pests. St. Paul, MN: APS Press. pp.85-106.Non-constant thermal regimes enhance overwintering success and accelerate diapause development for Smicronyx fulvus (Coleoptera: Curculionidae)

- (Peer Reviewed Journal)Prasifka, J.R., Rinehart, J.P., Yocum, G.D. 2015. Nonconstant thermal regimes enhance overwintering success and accelerate diapause development for  Smicronyx fulvus (Coleoptera: Curculionidae). Journal of Economic Entomology. 108(4):1804-1809. doi:10.1093/jee/tov173.Sesquiterpene lactone composition of wild and cultivated sunflowers and biological activity against an insect pest

- (Peer Reviewed Journal)Prasifka, J.R., Spring, O., Conrad, J., Cook, L.W., Palmquist, D.E., Foley, M.E. 2015. Sesquiterpene lactone composition of wild and cultivated sunflowers and biological activity against an insect pest. Journal of Agricultural and Food Chemistry. 63(16):4042-4049. doi:10.1021/acx.jafc.5b00362.Rhizopus oryzae associated with Melanagromyza splendida and stem disease of sunflowers (Helianthus annuus) in California

- (Peer Reviewed Journal)Mathew, F.M., Prasifka, J.R., Gaimari, S.D., Shi, L., Markel, S.G., Gulya, T.J. 2015. Rhizopus oryzae associated with Melanagromyza splendida and stem disease of sunflowers (Helianthus annuus) in California. Plant Health Progress. 16(1):39-42. DOI:10.1094/PHP-RS-14-0042.Larval mortality and development for rotation-resistant and rotation-susceptible populations of the western corn rootworm on Bt corn

- (Peer Reviewed Journal)Tinsley, N.A., Spencer, J.L., Estes, R.E., Prasifka, J.R., Schrader, P.M., French, B.W., Gray, M.E. 2015. Larval mortality and development for rotation-resistant and rotation-susceptible populations of the western corn rootworm on Bt corn. Journal of Applied Entomology. 139:46-54.Variation in the number of capitate glandular trichomes in wild and cultivated sunflower germplasm and potential for use in host plant resistance

- (Peer Reviewed Journal)Prasifka, J.R. 2015. Variation in the number of capitate glandular trichomes in wild and cultivated sunflower germplasm and potential for use in host plant resistance. Plant Genetic Resources. 13:68-74.Pericarp strength of sunflower and its value for plant defense against the sunflower moth, Homoeosoma electellum

- (Peer Reviewed Journal)Prasifka, J.R., Hulke, B.S., Seiler, G.J. 2014. Pericarp strength of sunflower and its value for plant defense against the sunflower moth, Homoeosoma electellum. Arthropod-Plant Interactions. 8:101-107.Automated detection of insect-damaged sunflower seeds by X-ray imaging

- (Peer Reviewed Journal)Pearson, T.C., Prasifka, J.R., Brabec, D.L., Haff, R.P., Hulke, B.S. 2014. Automated detection of insect-damaged sunflower seeds by X-ray imaging. Applied Engineering in Agriculture. 30(1):125-131.Sunflower insect pests

- (Book / Chapter)Prasifka, J.R. 2015. Sunflower insect pests. In: Foce, E.M., Dunford, N. and Salas, J.J. (eds.). Sunflower: Chemistry, Production, Processing, and Utilization. American Oil Chemists’ Society Press, Urbana, Illinois. pp 157-174.Methods for assessing infestations of sunflower stem weevil  (Coleoptera: Curculionidae) in sunflower stems

- (Peer Reviewed Journal)Prasifka, J.R., Campbell, J.F., Aiken, R.M., Bradshaw, J.D. 2014. Methods for assessing infestations of sunflower stem weevil  (Coleoptera: Curculionidae) in sunflower stems. The Canadian Entomologist. 146(4): 465-469.Transmission of Switchgrass mosaic virus by Graminella aureovitatta

- (Peer Reviewed Journal)Agindotan, B.O., Prasifka, J.R., Gray, M.E., Dietrich, C.H., Bradley, C.A. 2013. Transmission of Switchgrass mosaic virus by Graminella aureovitatta. Canadian Journal of Plant Pathology. 35(3):384-389.Adult activity and oviposition of corn rootworms, Diabrotica spp. (Coleoptera: Chrysomelidae), in Miscanthus, corn, and switchgrass

- (Peer Reviewed Journal)Prasifka, J.R., Spencer, J.L., Tinsley, N.A., Estes, R.E., Gray, M.E. 2013. Adult activity and oviposition of corn rootworms, Diabrotica spp. (Coleoptera: Chrysomelidae), in Miscanthus, corn, and switchgrass. Journal of Applied Entomology. 137(7):481-487.Current status and future perspectives on sunflower insect pests

- (Proceedings)Prasifka, J.R., Hulke, B.S. 2012. Current status and future perspectives on sunflower insect pests. In: 18th International Sunflower Conference Program and Abstracts, Mar del Plata & Barcarce, Argentina, February 27-March 1, 2012. P.41.Research needs and potential effects of biomass crops on pest management

- (Peer Reviewed Journal)Prasifka, J.R., Gray, M.E. 2012. Research needs and potential effects of biomass crops on pest management. Journal of Integrated Pest Management. 3(4):C1-C5.Potential biomass reductions to Miscanthus × giganteus by stem-boring caterpillars

- (Peer Reviewed Journal)Prasifka, J.R., Bradshaw, J.D., Gray, M.E. 2012. Potential biomass reductions to Miscanthus × giganteus by stem-boring caterpillars. Environmental Entomology. 41(4):865-871.Establishment and host effects of cereal aphids on switchgrass (Panicum virgatum L.) cultivars

- (Peer Reviewed Journal)Burd, J.D., Prasifka, J.R., Bradshaw, J.D. 2012. Establishment and host effects of cereal aphids on switchgrass (Panicum virgatum L.) cultivars. Southwestern Entomologist. 37(2):115-122.Modeling the impact of cross-pollination and low toxin expression in corn kernels on adaptation of European corn borer (Lepidoptera: Crambidae) to transgenic insecticidal corn

- (Peer Reviewed Journal)Kang, J., Onstad, D.W., Hellmich II, R.L., Moser, S.E., Hutchison, W.D., Prasifka, J.R. 2012. Modeling the impact of cross-pollination and low toxin expression in corn kernels on adaptation of European corn borer (Lepidoptera: Crambidae) to transgenic insecticidal corn. Environmental Entomology. 41(1):200-211.Bacillus thuringiensis Resistance Influences European Corn Borer (Lepidoptera: Crambidae) Larval Behavior after Exposure to Cry1Ab

- (Peer Reviewed Journal)Prasifka, J.R., Hellmich II, R.L., Sumerford, D.V., Siegfried, B.D. 2009. Bacillus thuringiensis Resistance Influences European Corn Borer (Lepidoptera: Crambidae) Larval Behavior after Exposure to Cry1Ab. Journal of Economic Entomology. 102(2):781-787.Nosema pyrausta:  Its Biology, History, and Potential Role in a Landscape of Transgenic Insecticidal Crops

- (Peer Reviewed Journal)Lewis, L.C., Bruck, D.J., Prasifka, J.R., Raun, E.S. 2009. Nosema pyrausta:  Its Biology, History, and Potential Role in a Landscape of Transgenic Insecticidal Crops. Biological Control. 48(3):223-231.Overexpression of Drosophila juvenile hormone esterase binding protein results in anti-JH effects and reduced pheromone abundance

- (Peer Reviewed Journal)Zhiyan, L., Li, X., Prasifka, J.R., Jurenka, R., Bonning, B.C. 2008. Overexpression of Drosophila juvenile hormone esterase binding protein results in anti-JH effects and reduced pheromone abundance. General and Comparative Endocrinology. 156:164-172.Selection of Nontarget Arthropod Taxa for Field Research on Transgenic Insecticidal Crops:  Using Empirical Data and Statistical Power

- (Peer Reviewed Journal)Prasifka, J.R., Hellmich II, R.L., Dively, G.P., Higgins, L.S., Dixon, P.M., Duan, J.J. 2008. Selection of Nontarget Arthropod Taxa for Field Research on Transgenic Insecticidal Crops:  Using Empirical Data and Statistical Power. Environmental Entomology. 37(1):1-10.Effects of Transgenic Bacillus thuringienses Corn and Permethrin on Nontarget Arthropods

- (Peer Reviewed Journal)Bruck, D.J., Lopez, M.D., Lewis, L.C., Prasifka, J.R., Gunnarson, R.D. 2007. Effects of tansgenic Bacillus thuringienses corn and permethrin on nontarget arthropods. Journal of Agricultural and Urban Entomology. 23(3):111-124.Effects of Insecticide Exposure on Movement and Population Size Estimates of Predatory Ground Beetles (Coleoptera: Carabidae)

- (Peer Reviewed Journal)Prasifka, J.R., Lopez, M.D., Hellmich II, R.L., Prasifka, P.L. 2007. Effects of Insecticide Exposure on Movement and Population Size Estimates of Predatory Ground Beetles (Coleoptera: Carabidae). Pest Management Science. 64:30-36.COMPARISON OF PITFALL TRAPS AND LITTER BAGS FOR SAMPLING GROUND-DWELLING ARTHROPODS

- (Peer Reviewed Journal)Prasifka, J.R., Lopez, M.D., Hellmich II, R.L., Lewis, L.C., Dively, G.P. 2007. Comparison of pitfall traps and litter bags for sampling ground-dwelling arthropods. Journal of Applied Entomology. 131:115-120.Rubidium marking to detect pest and predator dispersal from corn into sorghum and cotton in Georgia

- (Peer Reviewed Journal)Tillman, P.G., Prasifka, J.R., Heniz, K.M.  2007.  Rubidium marking to detect dispersal of pest and predator from corn into sorghum and cotton in Georgia.  Journal of Entomological Science.  42(3): 383-391.Effects of Cry1Ab-Expressing Corn Anthers on the Movement of Monarch Butterfly Larvae

- (Peer Reviewed Journal)Prasifka, P.L., Hellmich II, R.L., Prasifka, J.R., Lewis, L.C. 2007. Effects of Cry1Ab-Expressing Corn Anthers on the Movement of Monarch Butterfly Larvae. Environmental Entomology. 36(1):228-233.SAMPLING EUROPEAN CORN BORER (LEPIDOPTERA: CRAMBIDAE) LARVAE FROM SEED CORN DRYING BINS FOR BT RESISTANCE MONITORING

- (Peer Reviewed Journal)Prasifka, J.R., Sumerford, D.V., Hellmich II, R.L., Lewis, L.C., Calvin, D.D. 2006. Sampling European Corn Borer (Lepidoptera: Crambidae) Larvae from Seed Corn Drying Bins for Bt Resistance Monitoring. Southwestern Entomologist. 31(4):269-279.EFFECTS OF LIVING MULCHES ON PREDATOR ABUNDANCE AND SENTINEL PREY IN A CORN-SOYBEAN-FORAGE ROTATION

- (Peer Reviewed Journal)Prasifka, J.R., Schmidt, N.P., Kohler, K.A., O'Neal, M.E., Hellmich II, R.L., Singer, J.W. 2006. Effects of living mulches on predator abundance and sentinel prey in a corn-soybean-forage rotation. Environmental Entomology. 35(5):1423-1431.ASSESSING CARABIDS CONTRIBUTION TO ECOSYSTEM SERVICES:  DOES IT MATTER IF THERE ARE MORE BEETLES?

- (Peer Reviewed Journal)O'Neal, M.E., Prasifka, J.R., Schmidt, N.P., Singer, J.W., Hellmich II, R.L., Kohler, K.A. 2006. Assessing carabids contribution to ecosystem services:  Does it matter if there are more beetles? American Entomologist. 51:231-233.A FRAMEWORK FOR EVALUATING POSSIBLE NON-TARGET EFFECTS OF TRANSGENIC CORN IN THE UNITED STATES:  STANDARDIZING LABORATORY TESTS

- (Proceedings)EFFECTS ON FITNESS AND BEHAVIOR OF MONARCH BUTTERFLY LARVAE EXPOSED TO A COMBINATION OF CRY1AB-EXPRESSING CORN ANTHERS AND POLLEN

- (Peer Reviewed Journal)Anderson, P.L., Hellmich II, R.L., Prasifka, J.R., Lewis, L.C. 2005. Effects on fitness and behavior of monarch butterfly larvae exposed to a combination of Cry1ab-expressing corn anthers and pollen. Environmental Entomology. 34:944-952.UTILITY OF GROUND BEETLE SPECIES IN FIELD TESTS OF POTENTIAL NON-TARGET EFFECTS OF BT CROPS

- (Peer Reviewed Journal)Lopez, M.D., Prasifka, J.R., Bruck, D.J., Lewis, L.C. 2005. Utility of ground beetle species in field tests of potential non-target effects of Bt crops. Environmental Entomology. 34(5):1317-1324.ASSESSING THE EFFECTS OF PEST MANAGEMENT ON NON-TARGET ARTHROPODS:  THE INFLUENCE OF PLOT SIZE AND ISOLATION

- (Peer Reviewed Journal)Prasifka, J.R., Hellmich II, R.L., Dively, G.P., Lewis, L.C. 2005. Assessing the effects of pest management on non-target arthropods:  the influence of plot size and isolation. Environmental Entomology. 34:1181-1192.ASSESSING GROUND BEETLE CONTRIBUTION TO ECOSYSTEM SERVICES: DOES IT MATTER IF THERE ARE MORE GROUND BEETLES?

- (Abstract Only)O'Neal, M.E., Singer, J.W., Schmidt, N., Prasifka, J.R., Hellmich II, R.L. 2005. Assessing ground beetle contribution to ecosystem services: does it matter if there are more ground beetles?. [abstract]. NCB-ESA North Central Branch Entomological Society of America. Paper No. 102.THE EFFECT OF PERENNIAL COVER CROPS ON NATURAL ENEMY COMMUNITIES IN CORN AND SOYBEAN

- (Abstract Only)Schmidt, N., Oneal, M., Singer, J.W., Kohler, K.A., Prasifka, J.R., Hellmich Ii, R.L. 2004. The effect of perennial cover crops on natural enemy communities in corn and soybean [abstract]. Entomological Society of America Annual Meeting. Poster No. D0081.DEVELOPING GUIDELINES FOR MONITORING NON-TARGET EFFECTS OF BT CROPS

- (Proceedings)CHALLENGES FOR FIELD RESEARCH ON NON-TARGET EFFECTS OF BT CROPS

- (Abstract Only)EFFECTS OF BT PLANTS ON NON-TARGET HERBIVORES

- (Book / Chapter)Hellmich II, R.L., Prasifka, J.R., Anderson, P.L. 2004. Effects of Bt plants on non-target herbivores. In: van Emden, H.F., Gray, A.J., editors. GM Crops-Ecological Dimensions. Wellesbourne, Warwick, UK: Association of Applied Biologists. p. 75-80.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov