水稻穗颈瘟和纹枯病是水稻的两大病害,在我省每年都有不同程度发生,造成水稻减产。目前,生产上推广的水稻品种对这两种病害的抗性较差,所以适期喷药保护控制危害,仍是挽救损失的重要手段之一。供试药剂为40％克瘟散乳油(德国拜耳 Rice panicle blast and sheath blight are the two major diseases of rice in our province every year to varying degrees, resulting in reduced production of rice. At present, the production of rice varieties to promote the resistance of these two diseases is poor, so the appropriate spray protection and control hazards, is still an important means of saving the loss. Test agents for the 40% grams of blast powder (Germany Bayer