Downy Mildew on St. Augustinegrass in Mississippi. B. D. Bruton, Research Plant Pathologist, Department of Plant Science, Texas A&M University, College Station 77843. R. W. Toler, Professor, Department of Plant Science, Texas A&M University, College Station 77843; and D. L. Blasingame, Extension Plant Pathologist, Mississippi Cooperative Extension Service, Mississippi State University 39762. Plant Dis. 65:925. Accepted for publication 10 August 1981. Copyright 1981 American Phytopathological Society. DOI: 10.1094/PD-65-925.

Surveys of St. Augustinegrass for the presence of St. Augustine decline strain of Panicum mosaic virus in central and southern Mississippi were negative, but they did reveal the presence in Jones County of downy mildew caused by Sclerophthora macrospora.