近年来，种植大蒜效益好，面积不断扩大。但广大群众对大蒜的一些病虫害缺乏防治经验，给蒜农带来一定的经济损失。其中大蒜叶枯病是当前应重点防治的病害。一、大蒜叶枯病的主要病状症状主要表现在叶和花梗上。叶片受害后一般从叶尖开始发病。起初病斑为苍白色小圆点，以后逐 In recent years, the benefits of planting garlic, the area has been expanding. However, the general public lack of experience in prevention and control of some diseases and pests of garlic, garlic farmers to bring some economic losses. Among them, garlic leaf blight is the key disease to be controlled at present. First, the main symptoms of garlic leaf blight symptoms mainly in leaves and pedicels. Leaf blade injury generally start from the tip of the disease. Lesions at first pale dots, later by