B型烟粉虱是一种只有1毫米长的白色小昆虫,是多种病毒病的重要传播媒介,危害番茄、棉花等数十种重要的经济作物,几乎所有的大棚温室里都有这种害虫。它通过刺吸植物的汁液,使叶片褪绿、变黄、萎蔫,甚至全株枯死;分泌大量的蜜露,诱发霉污病,使叶片萎蔫、植株枯死,果实食用价值降低。 Bemisia tabaci B is a kind of small white insect that is only 1 mm long. It is an important vector for many kinds of virus diseases and endangers dozens of important cash crops such as tomatoes and cotton. Almost all greenhouse greenhouses have this kind of Pests. It sucks the juice of the plants to cause the leaves to become chlorotic, yellow, wilting and even whole plants die; the large amount of honeydew is secreted, mildew is induced, the leaves are wilted, the plants are withered, and the value of the fruits consumed is reduced.