Kentucky IPM Pest Information Pages
Wheat Spindle Streak Mosaic Virus
Plants infected with Wheat spindle streak mosaic virus (WSSMV) do not generally follow a row pattern and in Kentucky virus problems tend to be most severe in early fall-planted wheat.
Severely diseased plants will be slow to grow during early plant
development and may be stunted and thin throughout the season. Some varieties have a more severe reaction to WSSMV than is typical of susceptible varieties. This disease can be easily confused with Soilborne wheat mosaic virus.
Once plants are infected in the fall, nothing can be done to moderate the effects of the disease the following spring. Fungicides will not control it. Warm weather will help diseased plants recover. The only way to control WSSMV is to plant resistant varieties and delay planting until mid October or later.
This site was created and is maintained by Pat Dillon, Department of Entomology, University of Kentucky, S-225 Agricultural Science Ctr North, Lexington, KY USA 40546-0091 (phone: 859/257-3571). Please send questions or suggestions to: firstname.lastname@example.org