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章丘市自1990年引进并推广蔬菜越冬栽培技术以来,日光温室(冬暖大棚)面积逐年扩大,全市日光温室面积已达353hm~2。由于日光温室内特殊的生态环境,为蔬菜害虫的发生及繁殖提供了便利条件,其发生的种类、数量及危害程度明显增加,尤其是蚜虫、白粉虱、美洲斑潜蝇发生危害日益严重,被菜农称为日光温室的“三大害虫”。三大害虫的防治,已成为蔬菜科技工作者的当务之急。一、三大害虫发生概况 (一)白粉虱温室白粉虱可危害棚内多种蔬菜,尤以黄瓜、番茄、甜椒、茄子、菜豆等受害严重,其排泄的蜜露,可诱发煤污病,污染黄瓜、番茄等叶片、果实,不仅影响光合作用,也降低果菜的品质。由于其世代重叠,虫
Since the introduction and promotion of overwintering cultivation techniques of vegetables in Zhangqiu City in 1990, the area of sunlight greenhouse (winter warm shed) has been expanded year by year. The area of solar greenhouse in the city has reached 353 hm ~ 2. Due to the special ecological environment in the greenhouse, it provides convenient conditions for the occurrence and propagation of vegetable pests. The types, quantities and hazards of the pests are obviously increased. Especially, the occurrence of aphids, whiteflies and leafminers is increasingly serious, Vegetable farmers called the solar greenhouse “three pests ”. The prevention and treatment of the three major pests has become a priority for vegetable science and technology workers. First, the three major pests (a) whitefly Greenhouse whiteflies can harm shed a variety of vegetables, especially cucumber, tomato, sweet pepper, eggplant, beans and other serious damage, its excretion of honey dew, can cause coal pollution , Pollution of cucumber, tomato and other leaves, fruits, not only affect photosynthesis, but also reduce the quality of fruit and vegetables. Because of their overlap, insects