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白粉虱俗称小白蛾,其食性极杂,可危害茄果类、叶菜类、瓜类、豆类等多种蔬菜。随着保护地栽培面积的迅速扩大白粉虱的危害也日趋严重。特别是近几年来,保护地内白粉虱发生极为普遍,已成为保护地蔬菜栽培中的主要虫害,严重影响了产量和质量,给生产造成很大损失。 1、形态特征和生活习性白粉虱成虫体长为1～1.4mm,有翅,翅面覆盖一层白色的蜡粉,外观呈白色。卵为长椭圆形,初产时为淡黄色,孵化时变为黑色。初孵若虫是淡黄色或淡绿色,扁平,
Whitefly, commonly known as small white moth, its food is extremely complex, can harm eggplant, leafy vegetables, melons, beans and other vegetables. With the rapid expansion of the protected area of whitefly, the harm of whitefly has also become increasingly serious. Especially in recent years, the occurrence of whitefly in the protected areas is extremely common and has become the major pest in vegetable cultivation in protected areas, seriously affecting the yield and quality, causing great losses to the production. 1, morphological characteristics and habits of adult whitefly adult body length of 1 ~ 1.4mm, winged, wing surface covered with a layer of white wax, the appearance of white. Eggs are long oval, light yellow when primiparous and black when hatched. The newly hatched nymph is light yellow or light green, flat,