Aphid Transmission of Strawberry Mottle Virus from Chenopodium quinoa to Fragaria vesca. R. F. Hepp, Professor of Plant Pathology, University of Concepcion, Chillan, Chile. R. H. Converse, Research Plant Pathologist, USDA-ARS, Horticultural Crops Research Unit, Department of Botany & Plant Pathology, Oregon State University, Corvallis 97331. Plant Dis. 74:320-321. Accepted for publication 13 October 1989. 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, 1990. DOI: 10.1094/PD-74-0320.

A severe isolate (HJ) of strawberry mottle virus (SMV) was sap-inoculated to Chenopodium quinoa from Fragaria vesca and then returned to F. vesca by aphid (Chaetosiphon fragaefolii) inoculation to produce typical symptoms of strawberry mottle disease. Isometric, viruslike particles approximately 30 nm in diameter were seen in cells in both inoculated host plants but not in noninoculated plants. This is the first report of successful inoculation from infected C. quinoa to produce strawberry mottle disease in F. vesca.