论文部分内容阅读
为了及时地发现西伯利亚针叶林内的西伯利亚松毛虫的发生基地,必须知道这种害虫在猖獗间歇期形成害虫潜伏地的条件,以及在这种生境内松毛虫数量变动的特点。因为此时期经常预测害虫的数量动态有重要意义。
In order to find out in time the occurrence of Siberian Dendrolimus in the Siberian coniferous forest, it is necessary to know the conditions for the pest to form a potential pest during the rampant intermittent period and the variation in the number of the pine caterpillars in this habitat. Because of this period often predict the number of pests dynamic significance.