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粉虱科昆虫无论在农业生产上、国际貿易的植物检疫上以及生物学方面都有重要的意义。它們几乎全科都是害虫,为害各种各样的經济植物,例如南方的柑枳、北方的葡萄以及棉花和各种观賞植物。在山东地区早在1934年即有严重为害葡萄的记录,1956年作者在北京地区调查,见有一葡萄园被害后生产受到严重損失。本科昆虫虫体都极微小,在植物檢疫工作上是一类重要的对象,因此国际间厘訂了
Whitefly insects have important meanings in both agricultural production, phytosanitary and international biology. Almost all of them are pests, damaging a wide variety of economic plants, such as citrus aurantiacus in the south, grapes in the north and cotton and various ornamental plants. As early as 1934 in Shandong Province, there was a record of grapes harming grapes. In 1956, the author investigated in Beijing and saw that the production of the vineyard suffered serious losses. Undergraduate insect parasites are very small, phytosanitary work is an important category of objects, so the international set