Calyx end rot

Disease

Calyx end rot

Sclerotinia sclerotiorum (Lib.) de Bary

Distribution: Common to all fruit-growing regions in eastern North America.

Symptoms begin at the calyx end of the fruit, causing a reddish discoloration at the site of infection. The rot is at first soft, but eventually dries out, turning tan to brown with a red border. Calyx end rot is caused by the "white mold" fungus. Infected fruit have a tendency to drop prematurely.

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