白菜软腐病又叫腐烂病、烂疙瘩、水烂等,全国各地普遍发生。此病危害期长,在田间、贮藏期、销售期等都会引起腐烂,造成重大损失。因此,它与病毒病、霜霉病统称为大白菜三大病害,所有十字花科蔬菜均可受害。此外,还可危害番茄、辣椒、黄瓜、元葱及莴苣等。近年来,我市乃至全省此病都较重发生,使大白菜产量降低,质量下降,给人们的冬贮白菜造成很大的影响。一、症状常见有三种类型:①外叶呈萎蔫状,莲座期可见菜株于晴天中午萎蔫,但早晚恢复,持续几天后,病株外叶平贴地面,心部或叶球外露,叶柄茎或根茎处髓组织 Cabbage soft rot, also known as rotten disease, rotten knot, rotten water, etc., occur throughout the country. The long-term danger of this disease, in the field, storage period, sales period will cause decay, resulting in heavy losses. Therefore, it and the virus disease, Downy mildew collectively referred to as the three major diseases of Chinese cabbage, all cruciferous vegetables can suffer. In addition, it can endanger tomatoes, peppers, cucumbers, green onions and lettuce. In recent years, the disease in our city and even the province have occurred heavier, reducing the yield and quality of Chinese cabbage, causing great impact on people’s winter storage cabbage. First, the symptoms are common in three types: (1) the outer leaves were wilted, rosette stage can be seen at noon on sunny days wilt, but sooner or later recovery for several days, the diseased leaves flat paste the ground, heart or leaf ball exposed, petiole Stem or rhizome at the pulp tissue