松毛虫是危害松林的一种严重害虫。单纯利用人工、药械防治松毛虫,不仅要付出大量的人力物力,而且也收不到根治的效果,并往往打乱了大发生的世代,而造成连年或隔年大发生,给松林生长带来很大的影响。为了有效和彻底地制止松毛虫的发生,许多地方都进行了各种防治试验,特别是在开展人工药械 Dendrolimus is a serious pest that endangers pine forests. Simple use of artificial, drug control of pine caterpillars, not only to pay a lot of manpower and resources, but also can not receive the effect of radical and often disrupted the generation of large, resulting in successive years or next year, to Pinewood growth brought very Big impact In order to effectively and thoroughly stop the occurrence of pine caterpillars, various prevention and control tests have been carried out in many places, in particular,