Page Banner

United States Department of Agriculture

Agricultural Research Service

Research Overview
headline bar
1 - Accomplishments
2 - Standardized virus detection method
3 - Purple top phyoplasma
4 - Potato virus Y (PVY)
5 - Potato mop top virus (PMTV)
6 - Potato zebra chip disease
Potato virus Y (PVY)

Demonstrated that various strains of Potato virus Y (PVY) are widespread in certified seed potatoes grown in the US and Canada.

Potato virus Y (PVY) is an important pathogen of potatoes and causes reductions in both yield and quality of the potato crop.  Over multiple years of testing, we found that various strains of PVY, including those that cause symptoms in tubers, are present in certified potato seed lots from diverse locations in the United States.  This evidence indicates that current procedures to reduce the level of PVY infection in seed crops need improvement.  The photo below shows the symptoms of a tuber necrotic strain (PVY-NTN) in a tuber of Russet Burbank, the most widely-grown variety of potatoes.

<< Previous    1     2     3     [4]     5     6     Next >>

Last Modified: 3/13/2012
Footer Content Back to Top of Page