Cherry bacterial perforation mainly affects the leaves, shoots, and fruits of fruit trees such as cherries, peaches, plums, and apricots.
Symptoms of diseased leaves were initially translucent, with water-stained hazel-like dots, and then expanded into round, polygonal, or irregular lesions, with a diameter of 1 mm to 5 mm, a purple-brown or dark brown, and a light yellow surrounding. Halo circle. When the humidity is high, yellow and white mucinous pus are often spilled behind the lesions, and perforation occurs after the lesions fall off.
Prevention and control methods 1. Strengthen comprehensive management, increase tree vigor, and increase tree disease resistance. 2. Completely remove dead and fallen leaves, cut away diseased branches, and burn them centrally to eliminate the sources of overwintering bacteria. 3. Before spraying, Baume degree lime sulfur was sprayed. In the first half of the month of spraying, spray 72% of Streptomycin WP 3000 times, or 90% of neomycin to 3000 times, or 65% of zein zinc WP 500 times every 10 days to 15 days. Wait.
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