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
Home

     

Phytophthora on pumpkin/gourd leaves

Leaf spots, which are an uncommon symptom of Phytophthora blight, resemble those caused by Phytophthora infestans, the late blight fungus.

Photo courtesy of M.T. McGrath, Long Island Horticultural Research and Extension Center