在生产上,有些水稻病害容易与其他一些相似的病害相混淆,使得很多农民朋友分辨不清,作出错误的判断,造成防治上的失误,给农业生产带来不应有的损失。因此,极有必要将其相似病害的症状特点区别开来,然后采用对症防治措施,尽量减少生产上的损失。一、几种叶斑的识别发生在水稻上的稻瘟病、胡麻叶斑病、细节性褐条病和褐色叶枯病等,这几种病害初看起来病斑颜色均为褐色,外围有黄色晕围,且病斑形状有的相同,但仔细辨别, In production, some rice diseases easily confuse with some other similar diseases, making many peasants friends can not distinguish clearly and make wrong judgments, resulting in mistakes in prevention and control and bringing undue losses to agricultural production. Therefore, it is very necessary to distinguish the symptoms of similar diseases, and then use the symptomatic prevention and treatment measures to minimize the loss of production. First, the identification of several leaf spot occurred in rice blast, flax leaf spot disease, the details of brown disease and brown leaf blight, which lesions look at first spot color is brown, the outer yellow Halo Wai, and the lesion shape the same, but carefully identify,