温室白粉虱是一个世界性的害虫。近年来在我国北方大城市近郊温室、塑料大棚的黄瓜、番茄、青椒上受害严重。最近在哈尔滨、大庆也有发生。该虫繁殖之快,为害之重是十分惊人的。因此,温室白粉虱是近几年来蔬菜上发生最危险性的害虫。一、发生及为害温室粉虱源于美洲,早在1856年美国就有记载。据美国农部粉虱专家 RusseⅡ(1948)研究,温室粉虱的发源地在巴西、墨西哥一带,因为那里有同一属的许多相近种类存在。该虫先传到欧洲,本世纪四十年代在亚洲还未见记载,到六十年代才在伊朗和斯 Greenhouse whitefly is a worldwide pest. In recent years, in the suburbs of northern cities in our country greenhouses, plastic shed cucumbers, tomatoes, green peppers suffered serious. Recently in Harbin, Daqing has also occurred. The insects multiply fast, the weight of the damage is very alarming. Therefore, greenhouse whitefly is the most dangerous pest in vegetables in recent years. First, the occurrence and damage Greenhouse whitefly originated in the Americas, as early as 1856 in the United States there are records. According to Russell II (1948), a whitefly expert from the Department of Agriculture of the United States, the source of greenfly whiteflies is found in Brazil and Mexico because many nearby species of the same genus exist. The worm first spread to Europe, the forties of this century have not seen in Asia, to the sixties only in Iran and Sri Lanka