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 cucumber fruit
(Didymella bryoniae (sexual stage); Phoma cucurbitacearum)

Gummy stem blight infection on cucumber (Cucumis sativus) saved for seed
Photo courtesy of W.R. Sitterly, Brevand, N.C.

  • Return to Diagnostic Keys for Cucurbit Fruit