2001年稻瘟病在水稻主产区流行成灾,受害面积之大,损失之重,是自1985年滨旭因稻瘟病毁灭性损失后最重的一年,同稻瘟病14—15年大流行一次的规律相符合。稻瘟病的发生同品种抗性、病菌的致病性、耐药性,气候条件,田间管理密切相关,其中任何一个环节出现问 In 2001 rice blast epidemic in the main rice producing areas, the area of ​​victims, the loss of heavy, is since 1985, Bin Xu due to the destructive losses of rice blast the heaviest year, with the blast of 14-15 years of pandemic Once the law is consistent. The occurrence of rice blast is closely related to variety resistance, pathogenicity of pathogenic bacteria, drug resistance, climatic conditions and field management, and any one of them appears