On the West Coast, peaches have two basic diseases, peach leaf curl and gumming.
Peach Leaf Curl
In spring, peach leaves start to curl and thicken with a reddish, crisp texture. Leaves then turn brown and fall off the tree. This disease can be controlled by using a dormant spray during winter or a copper spray in the early spring
Gumming occurs at the sight where damage to the bark has been done by bacterial grown or canker. Control is only done by removing the affected growth below the diseased area. Be sure to disinfect your pruners after each cut.
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