白粉虱是温室蔬菜上的主要害虫，它食性较杂，可危害多种蔬菜，尤其在黄瓜、蕃茄、茄子上危害严重。主要防治方法如下：１烟熏法它植前关闭温室门窗，每１００ｍ２堆一堆干草，草上倒入７５～１００ｇ敌敌畏，点燃放出烟雾，半小时后打开门窗通风，排除烟雾，对成虫防效较... Whiteflies are the main pests on the greenhouse vegetables. Due to their complex diet, they can endanger many kinds of vegetables, especially on cucumbers, tomatoes and eggplants. The main methods of prevention and treatment are as follows: 1 smoke law it off before planting greenhouse doors and windows, pile a pile of hay every 100m2, grass poured into 75 ~ 100g dichlorvos, lit emit smoke, half an hour later open the doors and windows ventilation, eliminate smoke, More ...