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Focus on Potato

Bacterial Ring Rot of Potato
January 2012

By Neil C. Gudmestad, Ph.D.
Distinguished Professor of Plant Pathology
North Dakota State University
Fargo, North Dakota
Phone: 701-231-7547

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Bacterial ring rot of potato is one of the most feared tuber borne diseases of potato. On an annual basis economic losses due to ring rot are low, however, it is the constant threat of severe and devastating losses that warrants the continued vigilance of the potato industry. Although the bacterium that causes ring rot is primarily disseminated by seed potatoes, the bacterium is also capable of surviving outside its host for extended periods. Disease management is dependent on an integrated approach using high quality seed, modern pathogen detection technologies and sanitation.

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