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苹果黑星病又称疮痂病。分布于云南、河北、江苏、山东、河南、黑龙江、吉林和辽宁。黑星病可造成苹果落叶、落花和落果。致使树势衰弱:果实因病菌危害而龟裂、畸形.影响食用。此病主要危害苹果和花红等果树。症状与病原1.症状:病害能发生于叶、花、芽.果及嫩枝等部位,但主要危害叶片和果实。①叶片:在叶片的两面均可产生病斑,以叶面上的病斑更为清晰。病
Apple scab is also known as scab. Distributed in Yunnan, Hebei, Jiangsu, Shandong, Henan, Heilongjiang, Jilin and Liaoning. Scab can cause apples to fall, fall and fall. Resulting in frail weakness: the fruit due to pathogenic bacteria damage and deformity. Affect consumption. The disease is mainly endangering apple and red fruit trees. Symptoms and pathogens 1. Symptoms: Diseases can occur in leaves, flowers, buds and fruit and shoots and other parts, but the main hazards leaves and fruits. ① leaves: both sides of the leaves can produce lesions, lesions on the leaves more clearly. disease