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


Alternaria on melon leaves

Alternaria leaf spot (Alternaria cucumerina) is most common on muskmelon (cantaloupe).Photo courtesy of A.F.Sherf, Cornell University, Ithaca, NY

Alternaria leaf spot lesions can be quite large in size and take on a target-like appearance.
Photo courtesy of T.A. Zitter, Cornell University, Ithaca, NY

  • Return to Diagnostic Keys for Cucurbit Leaves