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白粉虱是一种杂食性害虫,可为害蔬菜、烟草、向日葵、花卉等213种植物。70年代末80年代初在华北地区大发生,严重为害蔬菜生产。近几年,为害虽没有那么猖撅,但分布范围更广,受害面积更大,从近郊扩散到远郊。据了解,1986年河北固安地热温室蔬菜受到白粉虱的严重为害,北京、天津及其郊区县有许多温室、大棚蔬菜不同程度地发生了白粉虱。我区虽是新菜区,1986年大港油田、万家码头村的地热温室黄瓜、西红柿和新房子村秋延后温室黄瓜也受到白粉虱的为害。白粉虱发生严重的温室,黄瓜减产达30％。白粉虱以成虫为害,它不但吸食植物汁
Whitefly is a omnivorous pest that can harm 213 species of plants such as vegetables, tobacco, sunflowers and flowers. In the late 1970s and early 1980s, large-scale occurrences took place in northern China, seriously damaging vegetable production. In recent years, although the damage was not so rampant, its distribution was broader and the victim area was even greater, spreading from the suburbs to the outer suburbs. It is understood that in 1986 Hebei Ge’an geothermal greenhouse vegetables by whitefly serious damage, Beijing, Tianjin and its suburban counties have many greenhouses, greenhouse vegetables occur to varying degrees, whitefly. Although our district is a new vegetable area, in 1986, Dagang Oilfield and Wanjia Wharf Village’s cucumber greenhouse, cucumber and tomato in the new house were also damaged by the whitefly. Whitefly occurred in a serious greenhouse, cucumber yield reduction of 30%. Whitefly is harmful to adults, it not only use plant juice