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5.05/4/2026

Always fair, encouraging, and motivating.

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About Mark

Mark Czarnota is an Associate Professor in the Department of Horticulture at the University of Georgia's Griffin Campus within the College of Agricultural and Environmental Sciences. His faculty appointment includes 58% research, 32% extension, 5% teaching, and 5% service. Czarnota earned a B.S. in Plant Science from the University of Delaware in 1989, an M.S. in Agriculture from Virginia Polytechnic Institute and State University in 1995, and a Ph.D. in Floriculture and Ornamental Horticulture from Cornell University in 2001. He covers all aspects of weed control in ornamentals, small fruits, Christmas trees, and floriculture through his extension efforts. His research focuses on weed biology, invasive weed control, identifying additional Christmas tree species suitable for the Southeast, natural products serving as herbicides, and the application of herbicides, growth regulators, and adjuvants. Czarnota teaches the Weed Science Laboratory course (CRSS4340L/6340L).