软腐病是白菜上主要病害之一,为害情况虽每年不同,但历年均有发生,如1951年京郊因此病的损失估计平均约为20～25%,因此生产上遭受的损失至为巨大。今秋本组进行晚熟结球白菜调查工作时,曾以海淀区东冉村乡为基点调查本病发生情况,并初 Soft rot is one of the major diseases in cabbage. Though the damage situation varies from year to year, it has happened over the years. For example, in 1951, the disease loss in the suburbs of Beijing was estimated to be about 20-25% on average, so the losses suffered in production were enormous . This group of late autumn cabbage cabbage survey work, had to East Haidian Dong Ran village as the basis for investigating the occurrence of this disease, and early