Corynespora Leaf Spot of Poinsettia in Louisiana. G. E. Holcomb, Department of Plant Pathology and Crop Physiology, Louisiana Agricultural Experiment Station, Louisiana State University Agricultural Center, Baton Rouge 70803. D. L. Fuller, Burden Research Plantation, Louisiana Agricultural Experiment Station, Louisiana State University Agricultural Center, Baton Rouge 70803. Plant Dis. 77:537. Accepted for publication 26 January 1993. Copyright 1993 The American Phytopathological Society. DOI: 10.1094/PD-77-0537A.