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一.前言油松为华北一带重要造林树种之一。北京西山一带营造的油松幼林,遭受松针卷叶蛾的严重危害,直接影响着林木的生长。1954年,北京西山造林事务所和林业部林业科学砌究所都要求防治办法,以便能够及早消灭此虫的危害。为了探讨防治途径,保证林木的健壮生长,以响应绿化祖国的伟大号召,我们于1955年起,开始进行松针卷叶蛾的生活史和习性的观察,并根据各个虫期的习性,寻找
I. Introduction Pinus tabulaeformis is one of the important afforestation species in North China. The young Pinus tabulaeformis forest in Beijing Xishan area suffered from the serious damage of pine needle roller moth and directly affected the growth of forest trees. In 1954, both Beijing Xishan Afforestation Office and the Forestry Bureau of Forestry Science Institute requested prevention and control measures in order to be able to eliminate the pests as soon as possible. In order to explore ways to control and ensure the robust growth of trees in response to the great call for greening the motherland, we started to observe the life history and habits of pine needles in 1955, and according to the habits of each stage