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Potato virus Y is the most serious threat to potatoes
date:Nov 20, 2019
ns. PVYO, a nonrecombinant strain dominant in the United States until 2012, has virtually disappeared, while two recombinant strains (associated with tuber damage) have been on the rise. These strains, PVYN-Wi and PVYNTN, now represent more than 90% of all PVY isolates found in potato.

In a webcast posted August 26th, Changing Strain Composition of Potato virus Y (PVY) in the U.S. Potato, University of Idaho Professor of Plant Virology Alexander Karasev discusses this strain-prevalence shift, d

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