Diseases By Crop
(Fact Sheets)
Photo Gallery
News Articles/ Disease Alerts
Diagnostic Keys
Virus Weed Hosts/ Rotation Lists
Resistant Varieties
Glossary of Plant Pathology Terms
Vegetable Guidelines
Vegetable IPM Links
Other Vegetable Links
Cornell Plant Disease Clinic


Gummy stem blight/black rot on winter squash fruit (continued)

Butternut Winter Squash, Two large coalescing lesions of gummy stem blight on butternut squash caused by Didymella bryoniae.Photo courtesy of T. A. Zitter, Cornell University, Ithaca, NY.

Numerous infections of butternut squash caused by Didymella bryoniae infection in the field.
Photos courtesy of Cornell University, Ithaca, NY