我场于一九五六年十月建立,有幼林四万九千六百亩,其中马尾松林四万六千亩,由于树种单纯集中,年年发生松毛虫害,一九七一年发虫面积达三万五千亩,其中严重的有一万亩,造成二千亩松林成片死亡。当时经人工捕捉、撒药和飞机喷药等方法虽把虫害压低到了最小限度,但未 My field was established in October 1956, with 49,600 acres of young forest, of which 46,000 acres of Massive Pine Forest, due to the simple collection of tree species, pine caterpillars occur annually, the worm in 1971 An area of ​​35,000 acres, of which a serious one million mu, resulting in two acres of pine forest into pieces. At that time by artificial capture, spraying and aircraft spraying and other methods to pest pressure down to a minimum, but not