Soybean Dwarf, Bean Leaf Roll, and Beet Western Yellows Luteoviruses in Southeastern U.S. White Clover. VERNON D. DAMSTEEGT, Research Plant Pathologist, USDA-ARS, Foreign Disease-Weed Science Research Unit, Frederick, MD 21702. A. L. STONE, Biological Laboratory Technician, USDA-ARS, Foreign Disease-Weed Science Research Unit, Frederick, MD 21702, and A. D. HEWINGS, Research Plant Pathologist, USDA-ARS, Crop Protection Research Unit, Department of Plant Pathology, University of Illinois, Urbana 61801. Plant Dis. 79:48-50. Accepted for publication 30 September 1994. 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, 1995. DOI: 10.1094/PD-79-0048.

Leaf samples collected from white clover plants in several eastern and southeastern states between 1986 and 1991 were tested for the presence of soybean dwarf virus (SbDV), bean leaf roll virus (BLRV), and beet western yellows virus (BWYV) by aphid transmission and serology. The majority of the 991 samples were from randomly selected, asymptomatic, white clover plants in or near established clover stands. We report here the widespread occurrence of SbDV and BLRV in the southeastern United States. Nearly 25% of all white clover samples contained SbDV, BLRV, or both, while less than 10% contained BWYV.