在林业生产中营造混交林,有利于改善生态环境,尤其是能更好地利用和发挥其生物潜能,为控制其害虫的发生,以促进林木良好地生长有着重要的作用,比营造纯林有许多优越性。这个观点已被广大林业工作者、林业昆虫工作者、广大人民群众和生产部门所接受,但在对害虫抑制能力方面,还缺乏足够的证据,本文就是对杉木、火力楠混交林和纯林试验林的主要害虫发生情况的调查报告,可供有关部门参考。 To create a mixed forest in forestry production is conducive to improving the ecological environment, especially to better utilize and exert its biological potential. It plays an important role in controlling the occurrence of pests and promoting the good growth of trees, Many advantages. This view has been accepted by the majority of forestry workers, forestry insects workers, the broad masses of the people and the production departments, but there is not enough evidence on pest suppression. This article is a test on the experiment of Chinese fir, Lin’s main pest occurrence survey report, for the relevant departments for reference.