Insensitivity of Sphaerotheca fuliginea to Triadimefon in a Commercial Pumpkin Field in Michigan. M. T. McGrath, Department of Plant Pathology, Long Island Horticultural Research Laboratory, Cornell University, Riverhead, NY 11901. M. K. Hausbeck, Department of Botany and Plant Pathology, Michigan State University, East Lansing 48824. Plant Dis. 77:319. Accepted for publication 10 October 1992. Copyright 1993 The American Phytopathological Society. DOI: 10.1094/PD-77-0319A.