Survey of Cowpeas in South Carolina for Six Viruses. M. H. Collins, Former Graduate Assistant, Department of Plant Pathology and Physiology, Clemson University, Clemson, SC 29631. J. F. Murphy, Graduate Assistant, W. Witcher, Professor, and O. W. Barnett, Professor, Department of Plant Pathology and Physiology, Clemson University, Clemson, SC 29631. Plant Dis. 68:561-563. Accepted for publication 19 March 1984. Copyright 1984 The American Phytopathological Society. DOI: 10.1094/PD-68-561.

A survey to determine the occurrence and incidence of six viruses in cowpeas in South Carolina was made in 1981 and 1982. During those 2 yr, 16 counties were involved in the commercial production of cowpeas, but only one county was involved both years. Four viruses were found (blackeye cowpea mosaic, cowpea chlorotic mottle, cowpea severe mosaic, and cucumber mosaic). Incidence within a county ranged from 1 to 76% and plants infected by more than one virus were found in 10 counties. Southern bean mosaic and cowpea mosaic viruses were not detected.