塑料薄膜环围扎树干防治落叶松毛虫文／黄建奎陈久君刘玉琴落叶松毛虫是危害落叶松的主要害虫之一，采用塑料薄膜环围扎树干防治落叶松毛虫，不但可降低防治成本，而且防治期长，不污染环境，不杀伤天敌，是一种非常理想的防治落叶松毛虫的好方法。落叶松毛虫有一个特殊的... Plastic film ring around the trunk stems control pine leaf caterpillar / Huang Jiankui Chen Jiujun Liu Yuqin Deciduous pine caterpillar is one of the major pests harmful to larch, the plastic film ring around the trunk of the control of pine caterpillar trunks, not only can reduce the cost of prevention and control and long , Does not pollute the environment, does not kill natural enemies, is a very good method for controlling Dendrolimus caterpillar. Larch caterpillar has a special ...