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大白菜软腐病是白菜三大病害之一,一直是生产上的主要病害。八十年代以来,随着白菜黑腐病的加重,为软腐病的发生创造了条件,病害又有发展。该病与黑腐病并发时,造成根颈腐烂;轻时根及短缩茎维管束变褐,严重时植株萎蔫、倾倒、髓部中空;重病田可造成70％以上的损失,甚至毁灭绝收,成为生产上急需解决的问题。软腐病主要在大白菜包心后发生,起初植株外围叶表现萎蔫,随着病情的发展,这些外叶不再恢复,露出叶球,植株倾倒;发
Chinese cabbage soft rot disease is one of the three major diseases of cabbage, has been the production of the main diseases. Since the 1980s, with the increase of black rot in Chinese cabbage, conditions have been created for the occurrence of soft rot and diseases have developed. When the disease and black rot disease concurrent, causing root neck rot; light root and short stem vascular bundle brown, severe wilting, dumping, medullary hollow; severe disease can cause more than 70% of the loss, or even destroy the absolute , Has become an urgent need to solve the problem of production. Soft rot occurs mainly in the heart of Chinese cabbage. At first, the outer leaves of the plant show wilting. As the disease progresses, the outer leaves no longer recover and the leaves are exposed and the plants are dumped.