马尾松毛虫(Dendrolimus ponctatus Walker)是我国森林的主要害虫之一,为害严重时造成大面积松树死亡。江苏省历年用六六六等农药大面积的飞机防治控制此虫的猖獗。长期使用,不仅松毛虫的抗药性越来越强,而且严重污染环境。目前这类有机氯农药已停止生产,1983年以来,在十几个品种中筛选高效、低毒、低残留的优良农 Dendrolimus ponctatus Walker is one of the major pests in the forest of our country. When the damage is serious, large-area pine trees die. Jiangsu Province over the years with a large area of ​​666 pesticides such as aircraft control and control of the rampant insects. Long-term use, not only the resistance of pine caterpillars getting stronger, but also seriously pollute the environment. At present, such organochlorine pesticides have ceased production. Since 1983, more than ten varieties have been screened for excellent, low-toxicity and low-residue fine agriculture