随着害虫防治策略的不断改进，群落生态学中的许多基本概念被越来越多的应用到农业害虫防治系统中。
With the development of pest control strategies, more and more concepts from community ecology are applied to the system of preventing agricultural pests.
第一阶段的“害虫防治”策略具有人的主观性、缺乏层次性、忽略差异性；
The former tactics is possessed with human subjectivism, lacks graduation and neglects difference.
并对主要林木害虫的危害特点进行了观察，提出了防治策略。
According to observation on harmful characteristics of main forest insect pest, control measures have been put forward.
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