First Report of Periwinkle Twig Blight Caused by Colletotrichum dematium in Florida. R. T. McMillan, Jr., Department of Plant Pathology, University of Florida, TREC, Homestead 33031. W. R. Graves, Department of Plant Pathology, University of Florida, TREC, Homestead 33031. Plant Dis. 77:428. Accepted for publication 17 November 1992. Copyright 1993 The American Phytopathological Society. DOI: 10.1094/PD-77-0428A.