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Gummy Stem Blight/Black Rot infection of assorted cucurbits (Didymella bryoniae (sexual stage); Phoma cucurbitacearum)

Lesion of gummy stem blight infection of pumpkin. Note presence of pycnidia in center of lesion and early powdery mildew colonies.

Photo courtesy of T.A. Zitter, Cornell University, Ithaca, NY

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Link to the Factsheet on Gummy Stem Blight/ Black Rot of Cucurbits

Link to Photo Gallery of Gummy Stem Blight/ Black Rot of Cucurbits