近年来由于花椰菜的需求不断增加,栽培面积也不断扩大,连作现象严重,使得花椰菜上的病害频繁发生,尤其软腐病,是威胁花椰菜生产的重要病害。一般软腐病造成的损失达15%～20%,严重时可以导致绝收,直接影响了花椰菜的生产和种植者的收入。在全国范围内病害调查发现,目前软腐病在各花椰菜主产区普遍发生和流行,并有逐年加重的趋势。尤其在福建、浙江等冷凉地区,气候条件适宜病原菌的繁衍,对于花椰菜软腐病很难控制。因此,掌握花椰菜软腐病的发生规律和防治技术对于控制该病的大规模发生,具有十分重要的意义。 In recent years, due to the increasing demand of cauliflower, the cultivation area is also expanding continuously. The continuous cropping phenomenon makes the frequent occurrence of diseases on cauliflower, especially soft rot, which is an important disease threatening cauliflower production. The damage caused by soft rot is as high as 15% -20%. In severe cases, it can lead to bad harvest, which directly affects the production of cauliflower and the income of growers. Disease survey across the country found that the current soft rot in the main producing areas of cauliflower common occurrence and prevalence, and increasing year by year trend. Especially in the cool areas such as Fujian and Zhejiang, the climatic conditions are suitable for the multiplication of pathogenic bacteria, which is hard to control for the soft rot of cauliflower. Therefore, to master the cauliflower soft rot disease and prevention and control technology for the control of the disease on a large scale, is of great significance.