由于蔬菜大棚生产的特殊环境条件,而造成土壤中危害蔬菜的线虫逐年积累。直接影响了大棚蔬菜的发展。以往防治方法一般侧重于发病后用药剂灌根,效果不太理想,又加重了蔬菜的农药污染。若不注意防治,大棚蔬菜生产往往进行二、三年后,整个大棚便不得不废弃。既增加了蔬菜成本,又减少了菜农收入。 As a result of the special environmental conditions of greenhouse production, which caused soil nematodes harmful to vegetables accumulated year by year. A direct impact on the development of greenhouse vegetables. In the past, methods of prevention and treatment generally focused on irrigating roots with medicament after the onset of symptoms, and the effect was not so satisfactory, which aggravated the pesticide contamination of vegetables. If you do not pay attention to prevention and control, greenhouse vegetable production is often carried out two or three years later, the entire greenhouse will have to be abandoned. It not only increases the vegetable cost but also reduces the vegetable farmers’ income.