Apple Scab—Venturia inaequalis
Apple scab is caused by a fungus which overwinters in infected dead leaves and fruit. The scab-like lesions on leaves and fruit can cause defoliation and will reduce fruit quantity and quality.
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Identification and Control Information
- Fact Sheet including Symptoms and Management Options (PDF)—Cornell Cooperative Extension–Suffolk County
- Fact Sheet with Detailed Information on Disease Cycle (PDF)—New York State IPM Fruit Crops Fact Sheet Series
- Tree Fruit & Berry Pathology: Apple Scab—Cornell University
[Photos, left to right: University of Georgia Plant Pathology Archive, University of Georgia, Bugwood.org; Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org; Joseph O'Brien, USDA Forest Service, Bugwood.org]