1错过防治最佳时期稻农们没有抓住在关键时期适时喷药预防水稻病害的发生。多数农户疏于田间管理,在防治上存在着重视虫害、轻视病害防治的思想,对稻瘟病的为害性认识不足,存在麻痹思想,往往是在大发生后已看见白穗时才施药防治。防治时间不及时,存在“马后炮”的现象, 1 missed the best period of prevention and control of rice farmers did not seize the critical period of spraying timely prevention of rice disease. Most farmers are negligent in field management, there are emphasis on prevention and control of pests, neglect of the idea of ​​disease prevention and control, the lack of awareness of the harmfulness of rice blast, there is paralysis of ideas, often after the big occurrence has seen Baizui only when the drug control. Prevention time is not timely, there is “aftermath ” phenomenon,