白菜包心期,常在叶柄基部出现水渍状病斑,引起腐烂、脱帮,露出叶球;严重时叶柄基部和根髓都发生腐烂,从腐烂处流出黄色脓液,并带有恶臭味;病菌沿叶脉扩展,很快引起整株腐烂,即形成烂疙瘩。病菌侵染叶脉后,如果条件不适宜,暂不发病,但被带入菜窖,就会发生烂疙瘩。白菜烂疙瘩其实是由白菜软腐病所致。 Cabbage heart period, often in the base of the petiole water stain like spots, causing decay, removal, revealing leaf ball; severe petioles and roots of the roots are rotten, from the decay at the outflow of yellow pus and odor Taste; bacteria along the vein expansion, quickly causing the entire plant decay, that is, the formation of rotten knots. After the pathogen infects the veins, if the conditions are not suitable, the disease will not occur temporarily, but when it is brought into the vegetable cellar, rotten lumps will occur. Cabbage rotten pimple is actually caused by cabbage soft rot.