1　症状识别褐纹病只为害茄子,可为害茄子茎、叶、果实。叶片上病斑圆形或不规则形,有或无轮纹,病部有许多小黑点。病部易破裂,下雨呈穿孔状。果实初生黄褐色或淡褐色不规则圆形斑,稍凹陷,扩大后变黑褐色,有明显轮纹,上生许多黑色小粒点。茎部多在基部,初呈淡褐色水渍状,继而糜 1 symptoms brown spot disease is only harmful to eggplant, eggplant can damage stems, leaves, fruits. The leaf spot on the leaves is round or irregular, with or without round lines, and there are many small black spots in the diseased part. Disease prone to rupture, the rain was perforated. Fruit originated brown or light brown irregular circular spot, slightly depressed, expanded to dark brown, with obvious round pattern, many students on the black small particles. Stems and more in the base, the beginning light brown water-like, then Mi