Distribution of Beet Western Yellows Virus in Potatoes Affected by Potato Leaf Roll. James E. Duffus, Plant Pathologist, Agricultural Research Service, U.S. Department of Agriculture, Agricultural Research Station, Salinas, CA 93915. Plant Dis. 65:819-820. Accepted for publication 15 January 1981. This article is in the public domain and not copyrightable. It may be freely reprinted with customary crediting of the source. The American Phytopathological Society, 1981. DOI: 10.1094/PD-65-819.

Beet western yellows virus (BWYV) was isolated from most potato leaf roll-affected potatoes assayed from California, Oregon, Wisconsin, Maine, and British Columbia. These BWYV entities that cause typical leaf roll in potato may represent a continuum of isolates varying in host range and serologic reaction.