Spread of Peanut Stripe Virus from Peanut to Soybean and Yield Effects on Soybean. A. G. Gillaspie, Jr., Research Plant Pathologist, Southern Regional Plant Introduction Station, Agricultural Research Service, U.S. Department of Agriculture, Griffin, GA 30223-1797. M. S. Hopkins, Plant Pathologist, Southern Regional Plant Introduction Station, Agricultural Research Service, U.S. Department of Agriculture, Griffin, GA 30223-1797. Plant Dis. 75:1157-1159. Accepted for publication 2 May 1991. 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, 1991. DOI: 10.1094/PD-75-1157.

Spread of peanut stripe virus (PStV) from peanut to soybean and the yield effects on soybean were determined in field tests at Byron, GA, in 1988 and 1989. Infection was determined by visual symptoms and confirmed by indirect ELISA. Initial spread of PStV to soybean was observed 38 and 35 days after inoculation of the peanuts in 1988 and 1989, respectively. After another 26 and 21 days, PStV had spread 24.4 and 16.8 m, respectively. The highest number of plants with PStV was in the southeastern and southwestern sections of the fields in both years. Secondary spread occurred in both years. Infection of six soybean cultivars caused no significant decrease in plant height, seed weight, or seed yield for any cultivar.