大蒜叶枯病在大蒜整个生长期均会发生,往往在短时期内造成蒜苗大面积枯萎死亡。 大蒜叶枯病属于真菌性病害,主要危害叶片,常先在叶尖表现症状。病斑初为苍白色圆形小斑点,后逐渐扩大变成灰褐色,呈不规则椭圆形状。病害从植株下部叶片向上蔓延,严重时造成整株蒜苗枯萎死亡。 Garlic leaf blight occurs throughout the growing season of garlic, often resulting in a large area of ​​withered garlic death in a short period of time. Garlic leaf blight is a fungal disease, the main hazard leaves, often the first tip symptoms. Lesions initially pale white spots, gradually expanded into a brown, irregular oval shape. Diseases spread from the lower part of the plant leaves upwards, resulting in the death of whole plant seedlings withered.