CIS1165

August 13, 2009

One of the most serious challenges facing seed potato producers is managing Potato virus Y, which causes stunting, foliar damage, wilting and sometimes plant death, even though some potato species display no symptoms at all. By 2009, new strains were making their way into North America. Learn about the status of the new strains and their management in this eight-page 2009 bulletin, which will soon be updated. Discussion includes the role of aphids in its transmission, why insecticide use isn’t effective, what the damage from the new strains looks like, infected seed potatoes as a serious source and advice on treating for Potato leafroll virus, a sister version which responds to insecticide applications.

Authors: Phillip Nolte, Juan M. Alvarez, Jonathan L. Whitworth

8 pages