有人认为“买菜最好买虫蛀的” ,甚至有的科普宣传也说 ,买菜可选购有虫口或还有活虫残留的蔬菜。其实 ,这种说法既不科学 ,更不安全。发生蔬菜残留中毒事故有几种原因 :一是某些菜农明知故犯 ,使用严禁喷洒的高毒杀虫剂甲胺磷等 ;二是随意滥加农药和增大配制浓度 ,如将溴氰菊 Some people think that “it is best to buy moth-eaten vegetables,” and even some popular science propaganda also said that grocery shopping can be purchased or there are residual worms vegetables. In fact, this argument is neither scientific nor more secure. Occurrence of vegetable residue poisoning for several reasons: First, some vegetable farmers knowingly guilty of the use of non-spraying highly toxic pesticide methamidophos, etc .; the second is indiscriminate pesticide and increase the concentration of the preparation, such as the deltamethrin