稻瘟病属真菌性病害,又称稻热病,俗称火烧病,其发生具有突发性、流行性和毁灭性,直接影响水稻产量和米质,给水稻生产造成严重损失。本县是典型的山区农业县,每年稻瘟病都有不同程度的发 Rice blast is a fungal disease, also known as rice fever, commonly known as the fire disease, its occurrence is sudden, epidemic and devastating, a direct impact on rice yield and quality of rice, causing serious losses to rice production. The county is a typical mountain agricultural county, each year the blast has varying degrees of hair