白菜软腐病在田间从包心期开始发病,先在菜帮基部出现半透明状浸润斑,逐渐扩大变成灰色,嫩组织水渍状腐烂,老组织失水成干缩状。发病初期外叶萎蔫,晚间或阴天尚能恢复正常,病情加重后便不再立起,使叶球暴露。浸染由叶帮基部向短茎发展,引起根髓腐烂,并溢出恶臭的黄色粘稠状物质 Cabbage soft rot in the field from the onset of pericardial onset, first in the food to help the base of translucent infiltration plaque, and gradually expanded into a gray, tender tissue water-like rot, the old tissue dehydration into dry shrinkage. Early onset of outer leaves wilting, evening or cloudy still be able to return to normal, aggravating the disease will no longer stand up, so that leaves exposed. Dip from the base of the leaf to the development of short stems, root rot caused the root, and spilled odor of yellow sticky substance