水稻白叶枯病是本省水稻主要病害之一。随着施肥水平的提高,高产抗病品种的推广,不利气候条件的影响,往往造成白叶枯病猖獗发生,流行成灾。1981年全省早、晚稻发病面积达457.8万亩,损失稻谷12728万斤,常年发病面积亦在300万亩以上,是我省水稻高产稳产的严重障碍。目前,在国内叶枯净防治白叶枯病效果差,而敌枯双又因致畸毒性和对人体皮肤过敏,而被禁用。故对白叶枯病的防 Rice bacterial leaf blight is one of the main diseases of rice in this province. With the improvement of fertilization level, the popularization of high-yielding and disease-resistant varieties and the unfavorable climatic conditions, they often cause the occurrence of bacterial blight and epidemic disaster. In 1981, the incidence of early and late rice in the province reached 4.578 million mu, 127.28 million kg of rice was lost and the perennial area of ​​disease was more than 300 million mu. This is a serious obstacle to the high and stable yield of rice in our province. At present, leaf blight in the domestic control of bacterial blight is poor, and the enemy dead double because of teratogenic toxicity and allergies to human skin, which was banned. Therefore, the prevention of bacterial blight