MySheen

What is the symptom of cherry blossom brown spot perforation disease?

Published: 2024-11-06 Author: mysheen
Last Updated: 2024/11/06, Symptoms of cherry blossom brown spot perforation: the disease occurs on leaves, shoots and fruits. But the main harm to the leaves, on both sides of the leaf to produce round or subcircular spots, about 1 to 4 mm in diameter, the edge is clear, slightly ringed, sometimes purple or reddish brown in the periphery, grayish white or brown in the center, and slightly wheeled. In the later stage, there are occasionally gray-brown mildew on both sides of the disease spot, that is, the conidium, especially on the back of the leaf. The disease spot often dries up and falls off, forming a perforation, and the holes are neat at the edge of the disease spot. The perforated leaves fall off early and the new shoots get sick.

Symptoms of cherry blossom brown spot perforation: the disease occurs on leaves, shoots and fruits. But the main harm to the leaves, on both sides of the leaf to produce round or subcircular spots, about 1 to 4 mm in diameter, the edge is clear, slightly ringed, sometimes purple or reddish brown in the periphery, grayish white or brown in the center, and slightly wheeled. In the later stage, there are occasionally gray-brown mildew on both sides of the disease spot, that is, the conidium, especially on the back of the leaf. The disease spot often dries up and falls off, forming a perforation, and the holes are neat at the edge of the disease spot. The perforated leaves fell off early, the disease spots on the new shoots were purple-brown, and grayish-brown mildew was also produced on the spots.

 
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