蔬菜极易长蚜虫,由于长期使用农药,使菜蚜抗药性增强。湖南祁东县的菜农,经多年的试验,用乐果加醋防治菜蚜效果极好。 方法是:在1公斤40％乐果乳剂中加1公斤白酷,掺水混合均匀后喷洒。4天后检查,防治效果可达95％,比单用乐果而没有加醋的方法提高防治效果25％～33％,其原因主要是 Vegetables are very easy to grow aphids, due to the long-term use of pesticides, so that the aphid resistance enhanced. Vegetable farmers in Qidong County, Hunan Province, after years of experiments, the dimethoate with dimethoate prevention and control effect is very good. Method is: 1 kg 40% dimethoate plus 1 kg white cool, mixed with water after spraying. 4 days after the inspection, the control effect of up to 95%, than the method of using only dimethoate without vinegar to improve the control effect of 25% to 33%, the main reason