白粉虱俗称小白蛾 ,是危害保护地蔬菜的一种害虫。在保护地主要为害黄瓜、番茄、茄子、菜豆、草莓等 ,对甜椒、萝卜、芹菜和莴笋为害较轻。每年发生６～１１代 ,世代重叠现象严重。在棚（室）内可以周年危害繁殖 ,并可随菜苗、苗木作远距离传播 ,在棚（室）环境条件下平均温度? Whitefly, commonly known as small white moth, is a pest that endangers the protection of vegetables. The main damage in the protected areas of cucumber, tomato, eggplant, beans, strawberries, etc., on pepper, radish, celery and lettuce damage less. 6 to 11 generations occur each year, generation overlap phenomenon is serious. In the shed (room) can endanger the breeding, and with the seedlings, nursery stock for long-distance transmission, shed (room) the average temperature of the environment?