油松Pinus tabulaeformis是山区造林的主要树种,油松毛虫Dendrolimus tabulaeformis严重威胁油松林的安全。多年来一直采用化学农药防治,虽然取得了一定的效果,但存在污染环境、伤害天敌、害虫易产生抗药性等问题。2005年我们做了植物性杀虫剂1·2%苦·烟乳油防治油松毛虫试验, Pinus tabulaeformis Pinus tabulaeformis is the main tree species in mountainous area. Dendrolimus tabulaeformis is a serious threat to Pinus tabulaeformis forest. Over the years has been using chemical pesticide control, although achieved some results, but there are pollution of the environment, natural enemies, pests prone to drug resistance and other issues. In 2005, we made botanical insecticide 1.2% bitter · smoked oil prevention and control of the pine caterpillar test,