Alternative sources of Potato virus Y in Western Washington
Beissinger, Abby, 1989-
Inglis, Debbie, 1953-
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While many potato growers in western Washington (WWA) are diligent about managing Potato virus Y (PVY) from commonly known inoculum sources, there are various means that are not always recognized by which PVY is able to evade detection and persist in a potato production region. This study investigated potential alternative sources of PVY in WWA by examining: (i) commonly grown specialty potato cultivars which might not express obvious symptoms when infected; (ii) weedy plants that frequently surround potato fields; and, (iii) certified and non-certified seed potato sources locally available for purchase by home gardeners and small farmers. Because all three of these sources have the potential to contribute to the occurrence of PVY in WWA, management recommendations are provided accordingly.