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Phytophthora on winter squash

Bronzed slightly raised patches on butternut fruit referred to as "ground stain". Possibly caused by Rhizoctonia solani.
Photo courtesy of T.A. Zitter, Cornell University, Ithaca, NY

Active, yeastlike sporulation on the surface of butternut fruit.
Photo courtesy of S.A. Johnston, Rutgers University, Bridgeton, NJ