春玉米纹枯病主要危害玉米叶鞘、果穗，使叶片早枯，严重时可造成果穗霉变，造成减产。随着春玉米种植面积的扩大，纹枯病的发生也逐年加重，严重影响了缙云县的旱粮生产。为有效控制纹枯病的发生为害，我们于１９９９年进行了４０％禾枯灵等药剂防治的田间试验，现将试验结果 Spring corn sheath blight mainly endanger corn leaf sheath, ear, leaves early dry, can cause serious mildew, resulting in reduced production. With the expansion of spring maize planting area, the incidence of sheath blight also increased year by year, seriously affecting the production of dry grain in Jinyun County. In order to effectively control the occurrence of Sharp Eyespot disease, we conducted a field test on the prevention and control of 40%