农业科学

• 杞柳

  The insect community's composing, dominant population's occurrence law and control methods on purpul osier(salix Integra Thrub) in Yimeng Mountains Area were studied systematically from 1997 to 2002. The main contents and conclusions are as follows:1.

  1997-2002年，通过对沂蒙山区杞柳害虫群落结构特征与防治进行了系统研究，主要内容和结论如下：1．首次研究明确沂蒙山区杞柳害虫的种群组成。