Scab (fungus - Sphaceloma perseae): Circular, brown, scabby areas are found on mature fruit [Photo]. Leaves have brown spots and become crinkled. The disease can become a problem if there is cool, moist weather when fruit and leaf tissue is young. Fungicides can control the disease and should be applied when flower buds appear, near the end of the main bloom period, and 3-4 weeks after that.

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