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Entomology Department > Faculty Jerald R. DeWitt Professor; Ph.D., University of Illinois (1972) Department Position: 100% extension Dr. DeWitt leads extension programs in sustainable agriculture for the College of Agriculture. He has served as an extension specialist for pesticide applicator training and integrated pest management. Dr. DeWitt's interests include sustainable agriculture, organic farming, IPM, and apiculture. Selected Publication: Francis, C., J. DeWitt, J. King, J. Bushnell & L. Lucas. 1990. Participatory strategies for information exchange. Amer. J. Alter. Agri. 5:153-161.