蚜虫是保护地蔬菜生产的一大害虫,它不但通过吸食蔬菜汁液造成叶片卷曲,排泄蜜露污染叶、果面,影响光合作用,培育霉菌孳生。而且,它还传播蔬菜病毒病,降低蔬菜产量,影响蔬菜质量。然而常规的喷药防治方法不但防效不好,而且造成温室湿度增大,为多种病害的侵染为害提供了有利条件,所以,试验探索一种高效、简便的防蚜用药或防治方法是当前急待解决的问题。因此,我们于1995年元月做了“敌敌畏熏蒸防治保护地蔬菜蚜虫”的试验。现将结果整理如下: Aphids are a large pest of vegetable production in protected areas. Not only does it curl the leaves through the consumption of vegetable juice, but also excrete honey dew to pollute the leaves and fruit surfaces, affect photosynthesis and breed molds. Moreover, it also spreads vegetable virus disease, reduces vegetable yield and affects vegetable quality. However, the conventional spray prevention and control methods not only have poor control effects, but also increase the humidity in the greenhouse and provide favorable conditions for infestation of various diseases. Therefore, it is necessary to explore a highly effective and convenient anti-aphid drug or prevention method The immediate problem to be solved. Therefore, in January 1995, we did a test of “dichlorvos fumigation prevention and control of vegetable aphids in protected areas”. The results are now organized as follows: