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Peanut Stunt Virus in Crownvetch. Sue A. Tolin, Associate Professor, Department of Plant Pathology and Physiology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061; John D. Miller, Research Agronomist, ARS, U.S. Department of Agriculture, Blacksburg, Virginia 24061. Phytopathology 65:321-324. Accepted for publication 7 October 1974. DOI: 10.1094/Phyto-65-321.

A virus isolated from crownvetch, Coronilla varia, was identified as a member of the cucumber mosaic virus group. The virus was determined to be identical to peanut stunt virus on the basis of host range, symptomatology, physical properties, serological reactions, and aphid transmissibility. Of 30 plant introductions of C. varia, inoculated with the virus, 16 were infected and showed definite symptoms, 10 showed very mild symptoms, and four were not infected. Also, C. globosa, C. coronata, C. scorpioides, and a Coronilla sp. were hosts for the virus. Widespread use of crownvetch along highways potentially can provide tremendous reservoirs of virus and insect vectors for transmission to susceptible agronomic hosts.