Christelle Guédot

Prof. Christelle Guedot

Christelle Guédot

Associate Professor and Extension Specialist

546 Russell Laboratories
1630 Linden Drive
Madison, WI 53706

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Ph.D. Biology – Utah State University, Logan, UT. 2004
Ability to conduct scientific research. Ecole Pratique des Hautes Etudes, Paris, France. 1998
Maîtrise. Neurobiology – Université Paul Sabatier, Toulouse, France. 1997
B.S.  Cell Biology and Physiology – Universitédes Sciences, Montpellier, France. 1996

My major research interest is the study of natural chemicals that mediate interactions between organisms and how these chemical messages affect insect behaviors, with the ultimate goal to develop practical applications for semiochemicals for integration into pest management programs while sustaining and enhancing pollination services.

I joined the Department of Entomology at the University of Wisconsin in October 2012 as the Fruit Crop Entomologist and Extension Specialist. My research program focuses on 1) developing and refining effective, economical, and environmentally sound insect pest management (IPM) strategies; 2) determining the importance of pollinators and developing strategies for conserving and enhancing pollination services for fruit crops in Wisconsin.  The focus of my extension program is to provide up to date, research-based information to Wisconsin fruit growers on effective and sustainable IPM practices and on pollination services.


Professional Societies:

Professional Societies:
Entomological Society of America
International Society of Chemical Ecology
Kansas Entomological Society
Florida Entomologist


Stockton D.G,..Guédot C, et al. 2020. Seasonal polyphenism of Spotted-wing Drosophila is affected by variation in local abiotic conditions within its invaded range, likely influencing survival and regional population dynamics. Ecology and Evolution. DOI: 10.1002/ece3.6491 PDF

Kamiyama M., Bradford B.Z., Groves R.L., and Guédot C2020. Degree day models to forecast the seasonal phenology of Drosophila suzukii (Diptera: Drosophilidae) in Midwest U.S. PLoS ONE. DOI: 10.1371/journal.pone.0227726. PDF

Olazcuaga L., Loiseau A., Parrinello H., Paris M., Fraimout A., Guédot C., Diepenbrock L.M., Kenis M., Zhang J., Chen X., Borowieck N., Facon B., Vogt H., Price D.K., Vogel H., Prud’homme B., Estoup A, and Gautier M. 2020. A whole-genome scan for association with invasive success in the fruit fly Drosophila suzukii using contrasts of allele frequencies corrected for population structure. Molecular Biology and Evolution. DOI: 10.1093/molbev/msaa098. PDF

Lois A.N, Jaffe B.D., Guédot C. 2020. Supplemental feeding solution do not improve honey bee (Hymenoptera: Apidae) foraging on cranberry (Vaccinium macrocarpon). Journal of Apicultural Research. DOI: 10.1080/00218839.2020.1716472. PDF

Acebes-Doria A.L,..Guédot C, et al. 2019. Season-Long Monitoring of the Brown Marmorated Stink Bug (Hemiptera: Pentatomidae) Throughout the United States Using Commercially Available Traps and Lures. DOI: 10.1093/jee/toz240. PDF

Kamiyama M.T., Schreiner Z., Guédot C. 2019. Diversity and abundance of natural enemies of Drosophilia suzukii in Wisconsin, USA fruit farms.  Biocontrol. DOI: 10.1007/s10526-019-09966-w. PDF

Guzman A., Gaines-Day H.R., Lois A.N., Zalapa J., Brunet J., Steffan S.A., Guédot C. 2019. Surrounding landscape and spatial arrangement of honey bee hives affect pollen foraging and yield in cranberry. Agriculture Ecosystems and Environment. DOI: 10.1016/j.agee.2019.106624. PDF

Jaffe B.D., Guédot C., Kok-Yokima M., Ketterer M.E., Leibee G. 2019. A caterpillar adapted to feed on arsenic hyperaccumulating ferns. Ecological Entomology. DOI: 10.1111/een.12724. PDF

Kamiyama M.T. and Guédot C. 2019. Varietal and developmental susceptibility of Wisconsin tart cherry (Prunus cerasus) to spotted wing drosophila (Drosophila suzukii). Journal of Applied Entomology. DOI: 10.1093/jee/toz102. PDF

Pfeiffer V., Silbernagel J., Guédot C., Zalapa J. 2019. Woodland and floral richness boost bumble bee colony density in cranberry resource pulse landscapes. Landscape Ecology. DOI: 10.1007/s10980-019-00810-1. PDF

Jaffe B.D. and Guédot C. 2019. Vertical and temporal distribution of spotted-wing drosophila
(Drosophila suzukii) and pollinators within cultivated raspberries. Pest Management Science. DOI: 10.1002/ps.5343. PDF

Guédot C., Avanesyan A., and Hietala-Henschell K. 2018. Effect of temperature and humidity on the seasonal phenology of Drosophila suzukii (Diptera: Drosophilidae) in Wisconsin. Environmental Entomology. 47:1365-1375. PDF

Jaffe B.D., Lois A.N., and Guédot C. 2018. Effect of fungicide on pollen foraging by honey bees (Hymenoptera: Apidae) in cranberry differs by fungicide type. Journal of Economic Entomology. DOI: 10.1093/jee/toy353 PDF

Suryanarayanan S., Kleinman D.L., Gratton C., Toth A., Guédot C., Groves R., Piechowski J., Moore B., Hagedorn D., Swan H., Celley M. 2018. Collaboration matters: honey bee health as a transdisciplinary model for understanding real-world complexity. Bioscience. PDF

Guédot C., Hietala-Henschell, K., Lois, A.N. 2018. Species Composition, Abundance and Seasonal Phenology of Social Wasps (Hymenoptera: Vespidae) in Wisconsin Vineyards. Insects9, 57.  PDF

Jaffe B.D., Guédot C., Landolt P.J. 2018. Mass-Trapping Codling Moth, Cydia pomonella (Lepidopteran: Torticidae), Using a Kairomone Lure Reduces Fruit Damage in Commercial Apple Orchards. Journal of Economic Entomology. DOI: 10.1093/jee/toy111  PDF

Jaffe B.D, Avanesyan A, Bal H.K., Feng Y., Grant J., Grieshop M.J., Lee J.C., Liburd O.E., Rhodes E., Rodriguez-Saona C., Sial A.A., Zhang A., Guédot C. 2018. Multistate Comparison of Attractants and the Impact of Fruit Development Stage on Trapping Drosophila suzukii (Diptera: Drosophilidae) in Raspberry and Blueberry. Journal of Environmental Entomology. DOI: 10.1093/ee/nvy052.  PDF

Steffan S., Chikaraishi Y., Dharampal P., Pauli J., Guédot C. and Ohkouchi, N. 2017. Unpacking brown food-webs: Animal trophic identity reflects rampant microbivory. Ecology and Evolution. DOI: 10.1002/ece3.2951 PDF

Fraimout A., and 25 other authors including Guédot C. 2017. Deciphering the routes of invasion of Drosophila suzukii by means for ABC random forest. Molecular Biology and Evolution. DOI: 10.1093/molbev/msx050 PDF

McMahan E.E., Steffan S.A., and Guédot C. 2017. Population densities of Lepidopteran pests in selected cranberry cultivars in Wisconsin. Journal of Economic Entomology. DOI: 10.1093/jee/tow274. PDF

Pelton E., Gratton C., and Guédot C. 2017. Susceptibility of cold hardy grapes to Drosophila suzukii (Diptera: Drosophilidae). Journal of Applied Entomology. DOI: 10.1111/jen.12384.   PDF

Ohler B.J., Guédot C., Zack R.S. and Landolt P.J. 2016. Aggregation of Thaumatomyia glabra (Diptera: Chloropidae) males on Iris spp. flowers releasing methyl anthranilate. Environmental Entomology. DOI: 10.1093/ee/nvw140 PDF

Pelton, E. Gratton, R. Isaacs, S. Van Timmeren, A. Blanton, and C. Guédot. 2016. Invited Manuscript: Earlier activity of Drosophila suzukii in high woodland landscapes but relative abundance is unaffected. Journal of Pest Science. DOI 10.1007/s10340-016-0733-z PDF

Burrack, H.J., Asplen M., Bahder L., Collins, J., Drummond F.A., Guédot C., Isaacs, R., Johnson D., Blanton A., Lee J.C., Loeb G., Rodriguez-Saona, C., Van Timmeren, S., Walsh D., and McPhie D.R. 2015. Multi-state comparison of attractants for monitoring Drosophila suzukii (Diptera: Drosophilidae) in blueberries and caneberries. Environmental Entomology. DOI: 10.1093/ee/nvv022 PDF

Siebach S, Covarrubias-Pazaran G, Harbut R, Workmaster B, Wasko DeVetter L, Steffan S, Guédot C,Atucha A, and Zalapa J. 2015. Toxicity of chelated iron (Fe-DTPA) in American cranberry. Journal of Horticulture. 2: 129-134 PDF

Lubanga UM, Guédot C, Percy DM, Steinbauer MJ. 2014. Semiochemical and vibrational cues and signals mediating mate finding and courtship in Psylloidea (Hemiptera): A synthesis. Insects 5: 577-595 PDF

Guédot C, Buckner JS, Hagen MM, Bosch J, Kemp WP, Pitts-Singer TL. 2013. Nest marking behavior and chemical composition of olfactory cues involved in nest recognition in Megachile rotundata. Environmental Entomology 42: 779-789 PDF

Guédot C, Horton DR, Landolt PJ, and Munyaneza JE. 2013. Effect of mating on sex attraction in Bactericera cockerelli with evidence of refractoriness. Entomologia Experimentalis et Applicata 149: 27-35 PDF

Horton D.R., Guédot C., and Landolt P.J. 2012. Identification of feeding stimulants for Pacific Coast wireworm by use of a filter paper assay (Coleoptera: Elateridae). Journal of the Entomological Society of British Columbia 109: 38-47 PDF

Guédot C., Horton D.R., and Landolt P.J.  2012.  Age at reproductive maturity and effect of age and time of day on sex attraction in the potato psyllid Bactericera cockerelliInsect Science 19:585-594 PDF

Pitts-Singer T.L., Buckner J.S., Freeman T.P., Guédot C.  2012.  Structural examination of the Dufour’s gland of the cavity-nesting bees Osmia lignaria Say and Megachile rotundata (Fabricius) (Hymenoptera: Megachilidae).  Annales of the Entomological Society of America 105:103-110 PDF

Landolt, P.J., Brumley J.A., Guédot C., Wanner K., Morales A.  2011. Male Fishia yosemitae (Grote) (Lepidoptera: Noctuidae) captured in traps baited with Z-7-dodecenyl acetate and Z-9-tetradecenyl acetate. Journal of Kansas Entomological Society 84:184-189  PDF

Landolt P.J., Guédot C., Hansen J., Wright L., and James D. 2011. Trapping hop looper moths, Hypena humuli Harris, (Lepidoptera: Erebidae) in hop yards with acetic acid and 3-methyl-1-butanol.  International Journal of Pest Management 57: 183-188  PDF

Garczynski S.F., Unruh T.R., Guédot C., and Neven L.G. 2011. Characterization of three transcripts encoding small heat shock proteins expressed in the codling moth, Cydia pomonella (Lepidoptera: Tortricidae).  Insect Science 18: 473-483  PDF

Guédot C., Horton D.R., and Landolt P.J.  2011.  Response of summerform pear psylla (Hemiptera: Psyllidae) to male- and female-produced odors. Canadian Entomologist 143: 245-253  PDF

Landolt P.J., Guédot C., and Zack R.S. 2011.  Spotted cutworm, Xestia c-nigrum L. (Lepidoptera: Noctuidae) responses to sex pheromone and blacklight. The Journal of Applied Entomology 135: 593-600  PDF

Guédot C., Horton D.R., and Landolt P.J.  2010.  Sex attraction in the potato psyllid Bactericera cockerelli (Hemiptera: Triozidae). Environmental Entomology 39: 1302-1308  PDF

Landolt P.J., Lowery D.T., Wright L.C, Smithhisler C., Guédot C., and James D.G. 2010.  Trap response of cutworm moths (Abagrotis orbis) to a sex attractant lure in grape vineyards. The Canadian Entomologist 142: 135-142  PDF

Guédot C., Millar J.G., Horton D.R., and P.J. Landolt. 2009.  Identification of a sex attractant pheromone for male winterform pear psylla, Cacopsylla pyricola. The Journal of Chemical Ecology 35: 1437-1447  PDF

Buckner J.S., Pitts-Singer T.L., Guédot C., Hagen M.M., Fatland C.L. and Kemp W.P.  2009. Cuticular Lipids of Female Solitary Bees, Osmia lignaria Say and Megachile rotundata (F.) (Hymenoptera:  Megachilidae).  Comparative Biochemistry and Physiology Part B 153: 200-205  PDF

Guédot C., Horton D.R., and P.J. Landolt.  2009. Attraction of male winterform pear psylla to female-produced volatiles and to female cuticular extracts with evidence of male-male repellency.  Entomologia Experimentalis et applicata 130: 191-197  PDF

Guédot C., Bosch J., and Kemp W.P. 2009. Relationship between body size and homing ability in the genus Osmia (Hymenoptera; Megachilidae). Ecological Entomology 34(1): 158-161  PDF

Guédot C., Landolt P. J., and Smithhisler C. 2008. Principal odorants of the flowers of Butterfly Bush, Buddleia davidii Franch., as possible moth attractants. Florida Entomologist 91(4): 576-582  PDF

Horton D.R., Guédot C., and P.J. Landolt. 2008. Attraction of male summerform pear psylla to volatiles from female pear psylla: effects of female age, mating status, and presence of host plant. The Canadian Entomologist 140:184-191  PDF

Landolt P. J. and Guédot C. 2008. Field attraction of codling moths (Lepidoptera: Tortricidae) to apple and pear fruit, and quantitation of kairomones from attractive fruit. Annals of the Entomological Society of America 101(3): 675-681  PDF

Horton D.R., Guédot C., and P.J. Landolt. 2007.  Diapause status of females affects attraction of male pear psylla, Cacopsylla pyricola, to volatiles from female-infested pear shoots. Entomologia Experimentalis et applicata 123: 185-192  PDF

Guédot C., Bosch J., and Kemp W.P. 2007.  Effect of three dimension and color patterns on nest location performance of two solitary bees (Hymenoptera: Megachilidae). Journal of the Kansas Entomological Society 80(2): 90-104  PDF

Guédot C., Bosch J., James R.R., and Kemp W. P. 2006.  Effect of three dimension and color patterns on nest location and progeny mortality of Megachile rotundata (F.) (Hymenoptera: Megachilidae) in commercial alfalfa pollination. Journal of Economic Entomology 99(3): 626-633  PDF

Guédot C., Pitts-Singer T.L., Buckner J.S., Bosch J., and Kemp W.P. 2006.  Olfactory cues and nest recognition in the solitary bee Osmia lignaria Say (Hymenoptera: Megachilidae). Physiological Entomology 31: 110-119  PDF

Guédot C., Bosch J., and Kemp W.P. 2005.  The relative importance of vertical and horizontal visual cues in nest location by Megachile rotundata (F.) (Hymenoptera: Megachilidae). Journal of Apicultural Research 44(3): 109-115  PDF

Program Info

Please visit the Guedot laboratory Fruit Crop Entomology website for information about our research program: