Christelle Guédot
she/her
Associate Professor
Interests: Fruit Crop Entomology/Pollination Ecology research
(608) 262-0899
546 Russell Labs
1630 Linden Drive
Madison, WI 53706
Faculty Profile
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Education
- 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
Research Interests
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. 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.
Publications
Online Profiles
Recent Publications
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Phytopathology. pmid:40833046, doi:10.1094/PHYTO-10-24-0306-R
Infection of cranberry by the 16SrIII-Y group phytoplasma responsible for cranberry false blossom disease results in floral disfigurement, fruit abortion, and phyllody, ultimately sterilizing infected plants. The pathogen almost devastated the cranberry industry in the 1930s, until control measures involving resistant cultivars and insect vector management were implemented. Recent discoveries of the pathogen and its vector in Wisconsin have renewed interest in exploring the pathosystem to gain…
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Environmental entomology. pmid:39891892, doi:10.1093/ee/nvaf004
Herbivorous insects utilize olfactory and visual cues to orient on suitable host plants, and such cues can be employed to facilitate insect monitoring. Lygus lineolaris Palisot de Beauvois is a polyphagous pest throughout North America. Monitoring this pest as it moves between crop and non-crop hosts remains challenging, and a lack of effective monitoring tools complicates management of this insect. In this study, we examined the electrophysiological and behavioral responses of L. lineolaris to…
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Genome biology and evolution. pmid:39235033, pmc:PMC11421661, doi:10.1093/gbe/evae195
Biological invasions carry substantial practical and scientific importance and represent natural evolutionary experiments on contemporary timescales. Here, we investigated genomic diversity and environmental adaptation of the crop pest Drosophila suzukii using whole-genome sequencing data and environmental metadata for 29 population samples from its native and invasive range. Through a multifaceted analysis of this population genomic data, we increase our understanding of the D. suzukii genome,…
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Frontiers in insect science. pmid:38468765, pmc:PMC10926536, doi:10.3389/finsc.2022.961437
Landscapes surrounding agroecosystems can provide resources that may benefit insect pests. This project examined the influence of the surrounding landscape on the abundance and spatial pattern of Popillia japonica (Coleoptera: Scarabaeidae) in vineyards. Twenty vineyards across Southern Wisconsin, spanning a gradient of 5-80% cropland in a 1.5km radius surrounding landscape, were sampled in 2017 and 2018 for P. japonica adults and leaf injury. The distribution of P. japonica and leaf injury was…
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Journal of economic entomology. pmid:38428947, doi:10.1093/jee/toae031
Popillia japonica Newman (Coleoptera: Scarabaeidae) feeding negatively impacts many plant species, including grapes, potentially reducing fruit quality and yield. Chemical control, representing the current grower standard, relies on frequent broadcast applications of broad-spectrum insecticides, with alternative management strategies mostly lacking. Attract-and-kill (A&K) is a behavioral management strategy that combines semiochemical attractants and a killing agent on a substrate. This study…
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bioRxiv : the preprint server for biology. pmid:37461625, pmc:PMC10349955, doi:10.1101/2023.07.03.547576
Biological invasions carry substantial practical and scientific importance, and represent natural evolutionary experiments on contemporary timescales. Here, we investigated genomic diversity and environmental adaptation of the crop pest Drosophila suzukii using whole-genome sequencing data and environmental metadata for 29 population samples from its native and invasive range. Through a multifaceted analysis of this population genomic data, we increase our understanding of the D. suzukii genome,…
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Journal of economic entomology. pmid:33760914, doi:10.1093/jee/toab032
The brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), is a well-documented pest of agricultural crops across the globe. However, not all crops are suitable hosts for H. halys, and it is necessary to proactively document the susceptibility of economically important specialty crops, such as cranberry (Vaccinium macrocarpon; Ericaceae), a native fruit crop that contributes millions of dollars to the North American economy. In this study, we tested whether cranberry is…
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Journal of insect science (Online). pmid:33560361, pmc:PMC7872009, doi:10.1093/jisesa/ieab004
Pest management of emerging pests can be challenging because very little fundamental knowledge is available to inform management strategies. One such pest, the red-headed flea beetle Systena frontalis (Fabricius) (Coleoptera: Chrysomelidae), is increasingly being identified as a pest of concern in cranberries Vaccinium macrocarpon Aiton (Ericales: Ericaceae). To improve our understanding of this pest and to develop more targeted management programs, we conducted field and laboratory studies to…
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Ecology and evolution. pmid:32760556, pmc:PMC7391339, doi:10.1002/ece3.6491
Overwintering Drosophila often display adaptive phenotypic differences beneficial for survival at low temperatures. However, it is unclear which morphological traits are the best estimators of abiotic conditions, how those traits are correlated with functional outcomes in cold tolerance, and whether there are regional differences in trait expression.We used a combination of controlled laboratory assays, and collaborative field collections of invasive Drosophila suzukii in different areas of the…
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PloS one. pmid:32330137, pmc:PMC7182266, doi:10.1371/journal.pone.0227726
Spotted-wing drosophila, Drosophila suzukii (Matsumura) (Diptera: Drosophilidae), is an invasive economic pest of soft-skinned and stone fruit across the globe. Our study establishes both a predictive generalized linear mixed model (GLMM), and a generalized additive mixed model (GAMM) of the dynamic seasonal phenology of D. suzukii based on four years of adult monitoring trap data in Wisconsin tart cherry orchards collected throughout the growing season. The models incorporate year, field site,…
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Molecular biology and evolution. pmid:32302396, pmc:PMC7403613, doi:10.1093/molbev/msaa098
Evidence is accumulating that evolutionary changes are not only common during biological invasions but may also contribute directly to invasion success. The genomic basis of such changes is still largely unexplored. Yet, understanding the genomic response to invasion may help to predict the conditions under which invasiveness can be enhanced or suppressed. Here, we characterized the genome response of the spotted wing drosophila Drosophila suzukii during the worldwide invasion of this pest…
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Journal of economic entomology. pmid:31502635, doi:10.1093/jee/toz240
Reliable monitoring of the invasive Halyomorpha halys abundance, phenology and geographic distribution is critical for its management. Halyomorpha halys adult and nymphal captures on clear sticky traps and in black pyramid traps were compared in 18 states across the Great Lakes, Mid-Atlantic, Southeast, Pacific Northwest and Western regions of the United States. Traps were baited with commercial lures containing the H. halys pheromone and synergist, and deployed at field sites bordering…
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Journal of economic entomology. pmid:31329912, doi:10.1093/jee/toz102
Drosophila suzukii (Matsumura) is an invasive species of vinegar fly that infests soft-skinned and stone fruits. Since its first detection in the United States, D. suzukii has become a prominent economic threat in fruit crop industries, particularly affecting caneberry and sweet cherry growers. This study examined the susceptibility of tart cherries (Prunus cerasus) to D. suzukii and sampled for larvae and adult D. suzukii during the tart cherry growing season. Four tart cherry cultivars…
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Pest management science. pmid:30663241, doi:10.1002/ps.5343
CONCLUSION: Pesticides applied during twilight that ensure coverage in the bottom half of the crop, or if applied in the late afternoon cover the entire crop, should improve the pesticide efficacy. However, previous studies suggest that specific D. suzukii (e.g. sex, mating status, age) may exploit different areas in the crop at different times, and more work needs to be done to understand how these aspects before a specific management program can be recommended. © 2019 Society of Chemical…
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Bioscience. pmid:30524133, pmc:PMC6278639, doi:10.1093/biosci/biy118
We develop a transdisciplinary deliberative model that moves beyond traditional scientific collaborations to include nonscientists in designing complexity-oriented research. We use the case of declining honey bee health as an exemplar of complex real-world problems requiring cross-disciplinary intervention. Honey bees are important pollinators of the fruits and vegetables we eat. In recent years, these insects have been dying at alarming rates. To prompt the reorientation of research toward the…
Selected Publications
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Teaching
Courses Taught
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Honors and Awards
- Pound Extension Award. University of Wisconsin-Madison College of Agricultural and Life Sciences (2020).
- Vilas Faculty Early Career Investigator Award. University of Wisconsin-Madison (2018).
- Alfred Toepfer Faculty Fellow Award. University of Wisconsin-Madison College of Agricultural and Life Sciences (2017).
- Madison Teaching and Learning Excellence early-career faculty fellow. University of Wisconsin-Madison (2015)
- Henry and Sylvia Richardson Research Award. Entomological Society of America (2011)
Professional Service
- Program Chair for the Entomological Society of America North Central Branch Annual Branch Conference held in Minneapolis, MN, March, 20-23, 2022.
- Member at large on the Publications Council for the Entomological Society of America 2020-present
- Editorial board: Associate Editor for Environmental Entomology – Section Chemical Ecology. 2018-present.
- Chair of the Local Arrangements Committee for the 73rd Entomological Society of America North Central Branch Annual Branch Conference held in Madison, WI, June 5-8, 2018.
- CALS Equity and Diversity Committee Member, 2019-2022.
- CALS Global Committee Member 2016-2019
- Chair of faculty search committee for Agroecosystems Entomologist 2019-2020
- Chair of faculty search committee for Precision Pest Ecologist 2021-2022
- Faculty Senator 2019-2022
- Chair of the Diversity Equity and Inclusion committee in the entomology department 2020-2022.