引种和选育抗虫的松树良种,是防治松毛虫的措施之一,为了解火炬松、湿地松两种国外松的抗虫性能,我们于1975年第一、二代松毛虫发生时,在马鞍山市林场进行了试验观察。一内容及方法试验内容: 选用火炬松、湿地松、马尾松三种松树的针叶,分别单独饲养马尾松毛虫,以马尾松为对照组,观察在无其它食料的情况下,松毛虫对各种松树的适应性,从而比较此两种松树的抗虫性能。分别选用马尾松针叶与火炬松针叶, Introduction and breeding of insect-resistant pine seed is one of the measures to control pine caterpillars, in order to understand the loblolly pine and pine slash pine two insect resistance, we in 1975 the first and second generation of pine caterpillars occurred in Maanshan City Forest Farm experiment was observed. Content and Methods Test Content: Pinus massoniana, Pinus elliottii and Pinus massoniana pine needles are individually fed with pine caterpillars Masson pine, the control group to Masson pine, the observation of the absence of other food materials, The adaptability of pine trees was compared with that of the two pine trees. Selected pine needles and pine needles,