An Epiphytotic of Diaporthe Stem Canker of Soybean in South Carolina. J. P. Krausz, Associate Professor, Department of Plant Pathology and Physiology, Clemson University, Pee Dee Experiment Station, Florence, SC 29502. B. A. Fortnum, Assistant Professor, Department of Plant Pathology and Physiology, Clemson University, Pee Dee Experiment Station, Florence, SC 29502. Plant Dis. 67:1128-1129. Accepted for publication 18 April 1983. Copyright 1983 American Phytopathological Society. DOI: 10.1094/PD-67-1128.

Stem canker disease of soybean, caused by Diaporthe phaseolorum var. caulivora, has been confirmed for the first time in South Carolina following an epiphytotic. The causal organism isolated from infected soybean stems was identified by in vivo and in vitro morphological studies and a pathogenicity test.