大蒜叶枯病是一种真菌病害,俗称“火风”,是大蒜的主要病害,近年来在本地区发生很普遍,危害很重,常常造成品质变劣,产量和产值下降,重发年发病株率高达85％以上,一般减产4至5成,严重时甚至减产7至8成。大蒜叶枯病表现为下部叶片枯黄萎蔫,绿叶片数不断减少,病叶的病组织一般从下部叶片尖端顺中脉或单侧向基 Garlic leaf blight is a fungal disease, commonly known as “fire wind”, is the main disease of garlic, in recent years in the region is very common, endangered, often resulting in deterioration of quality, output and output decline, the incidence of recurrent disease Strain rate of up to 85% or more, the general cut 4 to 5 percent, even in severe cases, cut 7 to 8 percent. Garlic leaf blight showed the lower leaves withered yellow wilt, the number of green leaves declining, sick diseased leaves usually from the tip of the lower leaves along the midrib or unilateral lateral base