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一、发病病状发病初期叶正面出现病斑,呈淡绿色圆形或椭圆形,表面有黑色绒状霉层,叶片脱落,随着果实生长,病部凹陷、硬化、龟裂。病果较小,生育畸形。
First, the onset of the disease incidence of early leaves appear lesions, pale green round or oval, the surface of black velvet mold layer, the leaves fall off, with the growth of the disease, the Ministry of depression, sclerosis, cracking. Lesions less reproductive deformity.