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自1976年以来,温室白粉虱Trialeurodesvaporariorum Westwood在京郊菜区连续发生为害,并由温室、大棚发展到露地,成为蔬菜生产中急需解决的问题。现将我们1977—1978年的观察和防治试验结果,简介如下。 一、寄主植物及为害性 温室白粉虱的寄主范围很广,能为害多种植物。在京郊蔬菜作物上,粉虱主要为害黄瓜、西红柿、茄子、菜豆、青椒、倭瓜等,其次还为害冬瓜、豌豆、莴笋等。在调查中发现,粉虱往往在叶背有毛刺的植物上,寄生数量大,为害严
Since 1976, Trialeurodesvaporariorum Westwood, a green house whitefly, has been continuously harmed in the suburbs of Beijing and has been evacuated from greenhouses and greenhouses to the open field. It has become an urgent problem to be solved in vegetable production. The results of our 1977-1978 observation and control trials are summarized below. First, the host plants and harmful greenhouse whitefly hosts a wide range of hosts, can harm a variety of plants. In the suburbs of Beijing vegetable crops, whitefly mainly cucumber, tomato, eggplant, beans, green peppers, pumpkin, etc., followed by damage melon, peas, lettuce and so on. In the survey found that whitefly often have glitches in the leaves of plants, the number of parasitic, harmful