蚜虫是蔬菜上的一种主要害虫。蔬菜一旦受到蚜虫的危害，不但造成严重减产，还会导致病毒病的大发生，使品质大幅度降低。因此，采取措施避免蚜虫危害及搞好预测，抓好药剂防治，是夺取蔬菜高产及提高品质的一项极为重要的措施。1．银灰色塑料膜避蚜法蚜虫对银灰色有明显的避忌 Aphids are a major pest on vegetables. Once aphids are harmed by vegetables, it will not only cause serious yield loss, but also lead to a large occurrence of virus diseases, resulting in a significant reduction in quality. Therefore, to take measures to avoid the harm of aphids and improve prediction, do a good job of chemical control, is to seize the vegetable yield and improve quality is an extremely important measure. 1. Silver gray plastic film to avoid aphids Law of the silver gray obvious avoidance