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油松叶小卷蛾在河北省围场县境内危害油松较严重 ,本文对该虫的生物学特性进行了观察 ,并对其防治方法进行了初步研究。该虫 1年 1代 ,以卵在当年生针叶内侧凹槽内越冬。在幼虫 60 %进入 3龄时用烟雾机施放高效氯氰菊脂乳油烟雾 ,防治效果可达 90 %以上 ;用同样方法在成虫羽化高峰期防治 1次 ,杀虫率可达 99%以上。
Pinus tabulaeformis in the county of Hebei Province endanger the Pinus tabulaeformis more serious, this article on the biological characteristics of the insect were observed, and the prevention and treatment of a preliminary study. The worm 1 year 1 generation, in order to eggs in the year-old needle inside the groove winter. When 60% of the larvae entered the 3rd instar larvae, the cypermethrin creams were sprayed by a smoke machine, and the control effect could reach 90% or more. In the same way, the larvae were prevented and treated once during the peak eclosion period and the insecticidal rate could reach over 99%.