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大庆温室是一座现代化温室,自1983年投产以来,由于连续性生产,给温室白粉虱繁殖提供了有利场所,造成黄瓜等减产25％左右。丽蚜小蜂是温室白粉虱寄生性天敌,1986年开始大量应用,至1990年末,省内外30多个单位应用该蜂防治面积已达400多亩,防效在95％以上,总增值100多万元。 一.方法: 番茄定植后15天左右开始释放丽蚜小蜂,将小蜂蛹卡均匀地挂在植株叶腋内或架
Daqing Greenhouse is a modern greenhouse. Since it was put into production in 1983, it has provided a favorable place for the reproduction of whitefly in the greenhouse due to the continuous production, resulting in about 25% reduction of cucumber production. Aphid wasp is a parasitic natural enemy of green house whitefly. Since 1986, a large number of applications have been made. By the end of 1990, more than 30 units of this bee had been used in more than 30 units within and outside the province. The control effect reached more than 95 acres with a control effect above 95% and a total value added of over 100 Million. A method: about 15 days after tomato colonization began to release aphids wasps, the pups puppet card evenly hanging in the plant leaf axils or frame