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一、发病症状在该类病害中,番茄斑枯病、芹菜斑枯病、茄褐纹病是较为常见的重要病害。番茄、芹菜斑枯病主要为害叶片。上生或大或小的近圆形病斑,边缘褐色,中间灰白至淡褐色,斑面散生褐色或黑色粒点(分生孢子器),严重时病叶枯死、脱落;也可为害茎或叶柄,上生椭圆形褐色病斑。茄褐纹病为害茎、叶、果,茎部受害,上生外缘褐色中间灰白色梭形病斑,斑面散生褐色小点(分生孢
First, the onset symptoms In such diseases, tomato spot blight, celery blight, eggplant brown spot disease is more common and important diseases. Tomato, celery spot blight is the main damage leaves. Upper or upper or lower orbicular lesion, brown edge, the middle gray to light brown, brown or black spots scattered surface dots (conidia), severe disease leaves dead, fall off; also harmful stem Or petioles, raw oval brown lesions. Eggplant brown leaf disease damage stems, leaves, fruit, stem damage, the upper edge of the brown middle fusiform spindle spot, spotted brown spots (spores