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寄生蝇具有世代多,繁殖快,生活力强,寄生范围较广等特点,是松毛虫的重要天敌.在发生松毛虫的松林里,一般都有寄生蝇存在,对松毛虫常有较高的寄生率,具有抑制虫口的作用.就今年在牛首管理区检查:白僵菌防治区越冬代松毛虫寄生率3.3%,第一代15.8%,敌百虫农药防治区第一代平均寄生率30.9%,最高达60%以上.有些种虽危害家蚕,但由于“灭蝇灵”广泛使用于蚕室,可以有效的防止危害,因此对防治松毛虫大有繁殖利用前途.
Parasitic flies have many generations, rapid propagation, strong viability, a wide range of parasitic characteristics, is an important natural enemy of pine caterpillars .In the pine forest where the pine caterpillars occur, there are generally parasitic flies exist, often higher on the pine caterpillars Parasitism, with the role of inhibiting the population of insects .This year in cattle first management area inspection: Beauveria bassiana control area overwinter moth caterpillar parasitic rate of 3.3%, the first generation of 15.8%, trichlorfon pesticide control area of the first generation of the average parasitic rate of 30.9 %, Up to 60% or more.Although some species endanger the silkworm, but due to the “fly mosquito” widely used in the Jamsil, you can effectively prevent the harm, so the prevention and control of pine caterpillars breeding future.