Christelle Guédot

Prof. Christelle Guedot

Christelle Guédot

Assistant 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


  • McMahan, E. and Guédot, C. Development of Sparganothis sulfureana (Lepidoptera: Tortricidae) on Cranberry Cultivars. Insects 2018, 9 (1) 4. DOI: 10.3390/insects9010004 (PDF available here)
  • 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.
  • 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
  • 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
  • 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
  • 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
  • Pelton E., Gratton C., Isaacs R., Van Timmeren S., Blanton A., and Guédot C. 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
  • 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
  • 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.
  • 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.
  • 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
  • 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
  • Horton DR, Guédot C, and Landolt PJ. 2013. 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
  • 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
  • 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 lignariaSay and Megachile rotundata (Fabricius) (Hymenoptera: Megachilidae).  Annales of the Entomological Society of America 105:103-110
  • 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 Society84:184-189
  • 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
  • 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
  • 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
  • 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
  • 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
  • Landolt P.J., Lowery D.T., Wright L.C, Smithhisler C., Guédot C., and James D.G. 2010.  Trap response of Abagrotis orbis (Grote) cutworm moths (Lepidoptera: Noctuidae) to a sex attractant lure in grape vineyards. The Canadian Entomologist 142: 135-142
  • 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 pyricolaThe Journal of Chemical Ecology 35: 1437-1447
  • 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 lignariaSayand Megachile rotundata (F.) (Hymenoptera:  Megachilidae).  Comparative Biochemistry and Physiology Part B 153: 200-205
  • 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
  • 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
  • Guédot C., Landolt P. J., and Smithhisler C. 2008. Principal odorants of the flowers of Butterfly Bush, Buddleia davidiiFranch., as possible moth attractants. Florida Entomologist 91(4): 576-582
  • 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
  • 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
  • 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
  • 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 Society80(2): 90-104
  • 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
  • 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
  • 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 Research44(3): 109-115

Program Info

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