胡麻炭疽病是一种毁灭性病害,也是我国检疫对象之一。据1983年在坝上平原区调查,发病率普遍为22.4%,严重地块植株全部死光。胡麻炭疽病的病原菌为真菌。在气温25—30℃和空气相对温度80%以上的条件下,产生体积较大的孢子堆,迅速繁殖。病原菌在生殖中不断侵染胡麻的根、茎、叶 Flammulina is a devastating disease and one of the quarantine targets in China. According to a survey conducted in the Bashang Plain in 1983, the incidence rate was generally 22.4%, and all the plants in the severe land were dead. The pathogen of flax anthracnose is fungus. In the temperature of 25-30 ℃ and air relative humidity of 80% or more conditions, produce larger spores, rapid breeding. Pathogens in the reproductive constantly infected flax roots, stems and leaves