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Doris H. D'Souza
Associate Professor
Foodborne pathogens

Kimberly D. Gwinn
Associate Professor
Plant Pathology

Shawn A. Hawkins
Associate Professor
Animal waste management

Brandon Joseph Horvath
Associate Professor
Turf Pathologist

Faith Critzer
Assistant Professor
Food Safety Extension Specialist

Groups and Facilities

7 mentions

Phytophthora Plant Pathogens 
Soybeans, vegetables, the Irish potato blight, and Sudden Oak Death.

1 mention

UT Organics 
Increasing farm income and keeping family farms in the family.

1 mention

Insect Physiology 
Studying the physiology of the insect gut and characterizing its interactions with invading microbes.


Host & Pathogen Interactions Between Amphibians & Ancient Fungal, 9/22/2015



2 mentions

Gourmet Food Safety 
We all want good-tasting foods, but what we eat also has to be safe. UT’s Institute of Agriculture works with producers statewide in food safety programs.

1 mention

Ranavirus Amphibians 
A killer virus is attacking amphibians native to the Smoky Mountains. Our researcher's are studying the impact of the virus, and looking to help the species most vulnerable.


Recent Publications

Susceptibility of the walnut twig beetle to pathogenic fungi.  Castrillo, L., J. Vandenberg, M. Griggs, J. Juzwik, A. M. Taylor, R. Camp, B. Mudder, and A. E. Mayfield.  2017.  Thousand Cankers Disease Research and Management Operational Meeting, 14 June 2017, Lafayette, IN (i.

Can we use entomopathogenic fungi as endophytes for dual biological control of insect pests and plant pathogens? Jaber, L., and B. H. Ownley.  2017.  Biological Control, 107: 50-59.

Confirmation of independent introductions of an exotic plant pathogen of Cornus species, Discula destructiva, on the east and west coasts of North America Mantooth, K., D. Hadziabdic, S. Boggess, M. T. Windham, S. Miller, G. Cai, J. Spatafora, N. Zhang, M. E. Staton, B. H. Ownley, and R. N. Trigiano.  2017.  PLoS ONE, 12(7): e0180345. https://doi.org/10.1371/journal.pone.0180345.

Mortality and reduced brood production in walnut twig beetles, Pityophthorus juglandis (Coleoptera: Curculionidae), following exposure to commercial strains of entomopathogenic fungi Beauveria bassiana and Metarhizium brunneum.  Mayfield, A. E., M. H. Griggs, R. Camp, B. Mudder, A. M. Taylor, and J. D. Vandenburg.  2017.  Biological Control, 114(2017) 79-86.

Prevalence and localized impact of the entomopathogenic fungus Beauveria bassiana on kudzu bug (Megacopta cribraria) in Eastern Tennessee Britt, K. E., J. F. Grant, G. J. Wiggins, and S. D. Stewart.  2016.  Journal of Entomological Science, Volume 51(4): 321-324.

Switchgrass extractives inhibit plant pathogenic fungi.  Bruce, A., B. H. Ownley, J. Tao, N. Labbe, K. D. Gwinn, D. H. D'Souza, and N. Moustaid-Moussa.  2016.  Phytopathology, 106 (Suppl. 4):S4.50. American Phytopathological Society annual meeting, July 30-August 3, 2016, Tampa, FL.

Intestinal regeneration as an insect resistance mechanism to entomopathogenic bacteria.  Castagnola, A., and J. L. Jurat-Fuentes.  2016.  Current Opinion in Insect Science, Volume 15, June 2016, Pages 104-110.

Walnut twig beetle mortality and reduced brood production following exposure to commercial strains of entomopathogenic fungi Beauveria bassiana and Metarhizium brunneum.  Castrillo, L., J. Vandenburg, M. Griggs, R. Camp, A. M. Taylor, R. Mudder, and A. Mayfield.  2016.  North American Forest Insect Work Conference, Poster.

Pathogenesis, Virulence and Population Genetics of Puccinia emaculata, the Causal Agent of Switchgrass Rust.  Cheng, Q.  2016.  Ph.D. Dissertation, pp. 119.

Pathogenicity and virulence of Alternaria alternata on ‘Alamo’ switchgrass.  Collins, S., and B. H. Ownley.  2016.  Phytopathology, 106(Suppl. 4):S4.31. American Phytopathological Society annual meeting, July 30-August 3, 2016, Tampa, FL.

Heat Inactivation of Select Foodborne Pathogens: How Should We Select the Target Microbe?.  D'Souza, D. H.  2016.  Proceedings IFT 2016, Chicago, IL, July 17, Invited Speaker.

Effectiveness of Entomopathogenic Nematode-Induced Systemic Resistance against Pests and Pathogens of Tobacco and Soybeans in Tennessee.  Ferguson, J.  2016.  M.S. Thesis.