Black and White Rot of Apple

Black rot and white rot are common canker fungi that can devastate branches and trunks and eventually cause tree loss. These opportunistic fungi favor stress conditions such as drought, late freezes, poor pruning cuts, and physical damage. Once established, they can also cause fruit rots. Dr. Gauthier discusses prevention, as well as management once trees become infected.

Companion publications can be found at https://plantpathology.ca.uky.edu/fil... and https://plantpathology.ca.uky.edu/fil...

Dr. Nicole Gauthier is an Extension professor at the University of Kentucky, Department of Plant Pathology. Her focus is disease management for fruit and vegetables, particularly for small acreage farms. Additional resources can be found at:
• UK Dept of Plant Pathology (fact sheets, spray guides) - https://plantpathology.ca.uky.edu/ext...
• Midwest Fruit Pest Management Guide (with spray recommendations) - https://ag.purdue.edu/department/hla/...
• Fruit Scouting Guides – https://fruitscout.ca.uky.edu/
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