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Thomas M. Chappell

Associate Professor
Focus Area:  Epidemiological and phenological modeling of diseases and pests of agricultural crops
Office:  
PLPM 213B
Email:  
Phone:  
979-458-0637
Thomas M. Chappell's Website

Education

Undergraduate Education
B.S. Biology, University of Michigan
B.M. Performance, University of Michigan
Graduate Education
Ph.D., Biology, Duke University
Post-doctoral, Entomology, North Carolina State University
Courses Taught
PLPA 607 Pathogen Strategies
PLPA 681 Seminar
BESC 431 Bioenvironmental Data Analysis

Areas of Expertise

  • Epidemiology Modeling
  • Disease Ecology Evolution

Professional Summary

Thomas Chappell, Ph.D. studies antagonistic interactions between plants and their enemies, focusing on epidemiological and phenological processes that can be modeled to enhance agricultural management. His research program involves diverse pathogens and pests, with a theme of modeling environmentally-dependent processes such as inoculum dynamics, pest and vector phenology, dissemination, and plant susceptibility. He teaches graduate and undergraduate courses in epidemiology and analysis, is the undergraduate research coordinator for the Department of Plant Pathology and Microbiology, and serves as a senior editor of Phytopathology.

Selected Publications

  1. Chappell TM, Ward RV, DePolt KT, Roberts PM, Greene JK, Kennedy GG (2020) Cotton Thrips Infestation Predictor: A practical tool for predicting tobacco thrips (Frankliniella fusca) infestation of cotton seedlings in the southeastern United States. Pest Manag. Sci. http://doi.org/10.1002/ps.5954
  2. Chappell TM, Codod CB, Williams BW, Kemerait RC, Culbreath AK, Kennedy GG (2020) Adding Epidemiologically Important Meteorological Data to Peanut Rx, the Risk Assessment Framework for Spotted Wilt of Peanut. Phytopathology 110:1199-1207. http://doi.org/10.1094/PHYTO-11-19-0438-R
  3. Davis II RL, Greene JK, Dou F, Jo YK, Chappell TM (2020) A Practical Application of Unsupervised Machine Learning for Analyzing Plant Image Data Collected Using Unmanned Aircraft Systems. Agronomy 10:633. http://doi.org/10.3390/agronomy10050633
  4. Ben-Mahmoud S, Anderson T, Chappell TM, Smeda JR, Mutschler MA, Kennedy GG, De Jong DM, Ullman DE (2019) A thrips vector of tomato spotted wilt virus responds to tomato acylsugar chemical diversity with reduced oviposition and virus inoculation. Sci. Rep.http://doi.org/10.1038/s41598-019-53473-y
  5. Magarey RD, Klammer SSH, Chappell TM, Trexler CM, Pallipparambil GR, Hain EF (2019) Perspective: Eco-efficiency as a strategy for optimizing the sustainability of pest management. Pest Manag. Sci. http://doi.org/10.1002/ps.5560
  6. Chappell TM, Magarey RD, Kurtz R, Trexler CM, Pallipparambil GR, Hain EF (2019) Perspective: Service‐based business models to incentivize the efficient use of pesticides in crop protection. Pest Manag. Sci. http://doi.org/10.1002/ps.5523
  7. Magarey RD, Chappell TM, Trexler CM, Pallipparambil GR, Hain EF (2019) Social Ecological System tools for improving crop pest management. J. Integrated Pest Manag. http://doi.org/10.1093/jipm/pmz004
  8. Chappell TM, Huseth AS, Kennedy GG (2019) Stability of neonicotinoid sensitivity in Frankliniella fusca populations found in agroecosystems of the southeastern United States. Pest Manag. Sci. http://doi.org/10.1002/ps.5319
  9. Ben-Mahmoud S, Smeda JR, Chappell TM, Stafford-Banks C, Kaplinsky CH, Anderson T, Mutschler MA, Kennedy GG, Ullman DE (2018) Acylsugar amount and fatty acid profile differentially suppress oviposition by western flower thrips, Frankliniella occidentalis, on tomato and interspecific hybrid flowers. PLOS ONE, 13(7). http://doi.org/10.1371/journal.pone.0201583
  10. Chappell TM and Kennedy GG (2018) Estimating the effectiveness of imidacloprid when used to suppress transmission of Tomato spotted wilt orthotospovirus in commercial agriculture.  J. Econ. Entom. http://doi.org/10.1093/jee/toy164
  11. Huseth AS, Chappell TM, Chitturi A, Jacobson AL, Kennedy GG (2018) Insecticide Resistance Signals Negative Consequences of Widespread Neonicotinoid Use on Multiple Field Crops in the U.S. Cotton Belt. Environ. Sci. Technol. 52(4): 2314–2322. http://doi.org/10.1021/acs.est.7b06015
  12. Smeda JR, Schilmiller AL, Anderson T, Ben-Mahmoud S, Ullman DE, Chappell TM, Kessler A, Mutschler MA (2018) Combination of Acylglucose QTL reveals additive and epistatic genetic interactions and impacts insect oviposition and virus infection. Mol. Breeding, 38: 3. http://doi.org/10.1007/s11032-017-0756-z
  13. Knowles LL, Chappell TM, Marquez EJ, Cohn TJ (2016) Tests of the Role of Sexual Selection in Genitalic Divergence with Multiple Hybrid Clines. J. Orthoptera Res., 25(2):75-82. http://doi.org/10.1665/034.025.0206
  14. Chappell TM and Rausher MD (2016) Host range evolution in Coleosporium ipomoeae, a plant pathogen with multiple hosts. Proc. Nat. Acad. Sci., 113(19): 5346-5351. http://doi.org/10.1073/pnas.1522997113
  15. Leckie BM, D’Ambrosio DA, Chappell TM, Halitschke R, De Jong DM, Kessler A, Kennedy GG, Mutschler MA (2016) Differential and synergistic functionality of acylsugars in suppressing oviposition by insect herbivores PLOS ONE, 11(4). http://doi.org/10.1371/journal.pone.0153345
  16. Huseth AS, Chappell TM, Langdon K, Morsello SC, Martin S, Greene JK, Herbert A, Jacobson AL, Reay-Jones FPF, Reed T, Reisig DD, Roberts PM, Smith R, Kennedy GG (2016) Frankliniella fusca resistance to neonicotinoid insecticides: an emerging challenge for cotton pest management in the Eastern United States. Pest Manag. Sci., 72: 1934-1945. http://doi.org/10.1002/ps.4232
  17. Kennedy SR, Schultz EM, Chappell TM, Kohrn B, Knowels GM, Herr AJ (2015) Volatility of mutator phenotypes at single cell resolution. PLOS Genet., 11(4). http://doi.org/10.1371/journal.pgen.1005151
  18. Chappell TM, Kennedy GG, Walgenbach JF (2014) Predicting codling moth (Cydia pomonella) phenology in North Carolina based on temperature and improved generation turnover estimates. Pest Manag. Sci., 71: 1425-1432.  http://doi.org/10.1002/ps.3947
  19. Chappell TM, Beaudoin AL, Kennedy GG (2013) Interacting Virus Abundance and Transmission Intensity Underlie Tomato Spotted Wilt Virus Incidence: An Example Weather-Based Model for Cultivated Tobacco. PLOS ONE, 8(8). http://doi.org/10.1371/journal.pone.0073321
  20. Chappell TM and Rausher MD (2011) Genetics of resistance to the rust fungus Coleosporium ipomoeae in three species of morning glory (Ipomoea). PLOS ONE, 6(12). http://doi.org/10.1371/journal.pone.0028875