生产无污染蔬菜保障消费者健康易齐，王蔚（全国植保总站，１０００２６）８０年代以来，由于蔬菜耕作制度改变，保护地蔬菜面积迅速增加，重茬、连作多，为病虫害发生提供了有利的生态条件，导致蔬菜病虫为害加重。每年因病虫为害损失的蔬菜，约占总产量的２０％。各地在... Production of non-polluting vegetables to protect consumer health Yi Qi, Wang Wei (National Plant Protection Station, 100026) Since the 1980s, due to changes in vegetable farming system, the rapid increase in vegetable area, continuous cropping, even more for the occurrence of pests and diseases to provide a favorable ecology Conditions, leading to aggravation of pests and diseases of vegetables. The vegetables lost due to pests and diseases each year account for about 20% of the total output. Around ...