在棚室蔬菜生产中,棚室内密闭、潮湿的环境条件,为病虫害发生提供了适宜的生长发育条件;棚室蔬菜周年生产,又为病虫害越冬提供了适宜的场所。所以棚室蔬菜病虫害发生的范围广、蔓延快、危害重,对蔬菜生产影响极大。因此,棚室病虫害防治是蔬菜管理的重要环节。那么怎样才能从根源上防治病虫害,杜绝病原菌和虫卵发生和蔓延呢?一、种子消毒有些病原菌、虫卵常潜伏或混杂在蔬菜的种子表面或内部,播种前进行种子消毒,可杀死其 In the greenhouse vegetable production, the greenhouse indoor closed and humid environmental conditions, for the occurrence of pests and diseases to provide suitable conditions for growth and development; greenhouse annual production of vegetables, pests and diseases for winter and provide a suitable place. Therefore, greenhouse vegetable pests and diseases occur in a wide range, rapid spread, endangering the heavy impact on vegetable production. Therefore, greenhouse pest control is an important part of vegetable management. So how can the prevention and control of pests and diseases at the root cause, to prevent the occurrence and spread of pathogens and eggs it? First, the seed disinfection of some pathogens, eggs often lurking or mixed in the surface of the seeds of vegetables, sowing seeds before disinfection can kill its