Dr. Culbreath is a leader in the area of ecology, epidemiology and control of thrips and tomato spotted wilt virus (TSWV). His work on thrips-vectored TSWV has resulted in a better understanding and control of this problem in the southeastern United States. Dr. Culbreath was part of the multidisciplinary team that developed the Spotted Wilt Risk Assessment Index for helping growers make decisions on how best to manage that disease in peanut.
Dr. Culbreath is also known for his work with quantitative and ecological epidemiology and integrated management of foliar fungal diseases of peanuts. His work on leaf spot diseases of peanut caused by fungi Cercosporidium personatum and Cercospora arachidicola has focused on chemical control, fungicide resistance management strategies, and integration of partial resistance to C. personatum with fungicide use for leaf spot control.
- Wallace K. Baily Award (4X), American Peanut Research & Education Society
- Novartis Award, American Phytopathological Society
- Coyt T. Wilson Award, American Peanut Research & Education Society
- Fellow, American Peanut Research & Education Society
- President, American Phytopathological Society Southern Div.
- Councilor, American Phytopathological Society Southern Div.
- President, American Peanut Research & Education Society
- D.W. Brooks Excellence in Research, The University of Georgia