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Coryneum Blight

Harold Larsen (June, 2015)

Summary

Coryneum blight -- also called shot hole disease, California blight, peach blight or pustular spot -- is caused by the fungus Coryneum carpophilum. In Colorado it affects mainly peaches and apricots, and to a lesser degree sweet cherries. This fact sheet describes the pathogen, its symptoms and methods of control.