菜蚜是大棚和温室内主要害虫,它们以成蚜和若蚜群集于植物叶背、嫩茎和生长点上。以刺吸口器吸取植物韧皮部汁液,使植物严重失水和营养不良,致使叶片卷缩,全株萎蔫,甚至枯死。所排蜜露堵塞气孔,影响呼吸和正常生长,造成大幅度减产。同时菜蚜还是传播病毒病的媒介体,往往造成大棚和温室内番茄、黄瓜、辣椒等蔬菜病毒的流行,其损害程度比蚜害本身还重。近年来大庆地区大棚、温室内菜蚜发生普遍,为害严重,每年都造成了严重的蔬菜损失。以往由于长期使用喷雾 Aphis gossypii is a major pest in greenhouses and greenhouses that colonize the leaves, tender stems and growing points of plants as aphids and aphids. To suck the phloem mouth phloem plant juice, plant serious water loss and malnutrition, resulting in leaf curling, the whole plant wilting, or even dead. The rows of honey dew plug pores, affecting the respiration and normal growth, resulting in a substantial cut. At the same time, the aphid still transmits the vector of virus disease, often causing the epidemics of vegetables and viruses such as tomato, cucumber and pepper in greenhouses and greenhouses, and the degree of damage is heavier than the pest itself. Daqing area in recent years, greenhouses greenhouse aphid widespread, serious damage, causing serious vegetable losses every year. In the past because of long-term use of spray