Postharvest Diseases of Pome and Stone Fruits Caused by Mucor piriformis in the Pacific Northwest and California. Themis J. Michailides, University of California, Berkeley Kearney Agricultural Center, Parlier, CA. Robert A. Spotts, Oregon State University Mid-Columbia Agricultural Research and Extension Center, Hood River. Plant Dis. 74:537-544. Copyright 1990 The American Phytopathological Society. DOI: 10.1094/PD-74-0537.