University of Georgia

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Viticulture

Update on Mancozeb in Grapes

Written by

Phil Brannen

In her mancozeb update (below), Katie Gold (Cornell University) has done a great job of providing a synopsis of the current mancozeb situation and the EPA’s activities and research efforts for mancozeb replacement, if necessary. Suffice it to say that it will likely be a matter of 2-3 years before any final decisions are made on whether mancozeb will be available at all, or available with new mitigations, for grape production. As she mentions, we are conducting trials in Georgia to gather information on potential mancozeb replacement options, and these trials are being replicated elsewhere.

gold manc update spring 2026Download
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Phil Brannen

Phil Brannen is a Professor in the Plant Pathology Department at the University of Georgia. He attended the University of Georgia for his undergraduate degree in Plant Protection and Pest Management, where he also received an M.S. in Plant Pathology, followed by a Ph.D. in Plant Pathology from Auburn University. He has extensive experience with disease management programs in numerous cropping systems. He serves as the extension fruit pathologist for Georgia – conducting research and technology transfer for multiple fruit commodities. His efforts are directed towards developing IPM practices to solve disease issues and technology transfer of disease-management methods to commercial fruit producers. He also teaches the graduate level Field Pathology Course, the History of Plant Diseases and their Impact on Human Societies Course, team-teaches the IPM Course, coordinates the Viticulture and Enology in the Mediterranean Region Course (Cortona, Italy), and guest lectures in numerous other courses throughout the year.

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