亚麻炭疽病是我国亚麻产区的主要病害。黑龙江省各亚麻产区均有发生。常年发病率在30～40%,生产上一度因药源较少,亚麻种子不拌药,白籽下地,尤其是种植在重迎茬地上,亚麻炭疽病的发病率有提高的趋势,死苗率达10%以上。地势低洼,发病严重地块,常造成缺苗、断条,甚至毁种。炭疽病的发生常与亚麻立枯病伴随发生,致使田间保苗率下降,严重影 Flax anthracnose is the main disease in China’s flax producing areas. Heilongjiang Province, all linen areas have occurred. Perennial incidence of 30 to 40%, the production was less due to less drug, linen seeds without mixing drugs, white seeds to the ground, especially planted in the area of ​​continuous cropping, the incidence of flax anthracnose tends to increase, dead seedlings Rate of 10% or more. Low-lying, severe disease block, often resulting in lack of seedlings, broken strips, and even destroyed species. Occurrence of anthracnose and flax blight often accompanied, resulting in field seedling rate decreased, severe shadow