近几年来,不论棚室或露地白粉虱的发生一年比一年加重,特别是露地的瓜类、茄果类、豆类、辣椒、棉花等作物发生严重,危害更厉害,防治更困难。白粉虱虫虽小,但它繁殖快,密度大,危害重,常以成虫和若虫聚集在作物叶片背面吸食汁液,危害轻时叶面出现密密麻麻的小白点,严重时叶片成片干枯。同时,白粉虱还分泌大量的蜜露,污染叶片和果实,不仅影响作物光合作用的进行,还常常导致煤污病的发生和病毒病的传染,同时还会降低作物产量和商品价值。实践证明,棚室白粉虱防治比较容易, In recent years, the occurrence of whiteflies in pests or open areas has increased year by year. In particular, crops such as melons, eggplants, legumes, peppers and cotton in open fields have become more serious and harmed, making prevention and treatment more difficult. Whitefly worms are small, but they reproduce fast, large density, endanger the weight, often to adults and nymphs gathered in the back of the crop leaves to drink juice, light leaves appear dense dense white spots, severe leaves into pieces dry. At the same time, the whitefly also secrete a lot of honeydew, pollution of leaves and fruits, not only affect the crop photosynthesis, but also often lead to the occurrence of coal pollution and viral infections, but also reduce crop yields and commodity value. Practice has proved that shed studio whitefly control easier,