癌肿病是一种生产上毁灭性的土传病害,广泛分布在高海拔冷凉多雨地区。感病块茎品质变劣,无法食用,连猪也不吃,完全失去利用价值。而且块茎感病后易于腐烂。主要为害植株地下部分,薯块和匍匐茎上发生普遍。一般损失30%~40%,重病地块可达80%以上,甚至绝收。病重时,也可发展到地上茎,但茎叶发病较少。土质疏松、有机质丰富、偏酸性的地块易于发病。马铃薯品种间有抗性差异。 Cancer disease is a devastating soil-borne disease that is widely distributed in cold and rainy areas at high altitudes. Poor quality of tubers, unable to eat, and even pigs do not eat, completely lost the value of use. And tubers susceptible to decay after infection. The main damage to the underground parts of plants, tubers and stolons occur prevalent. General loss of 30% to 40%, up to 80% of severely ill land, or even absolutely. Severe illness, but also to the development of aboveground stems, but less incidence of stems and leaves. Loose soil, rich organic matter, acidic land prone to disease. Potato varieties have resistance differences.