But the content of element K and Mn in the leaves of Chinese privet had linear correlation with the damaged degree of the pest. The more seriously the Chinese privet damaged,the higher the content of element Mn and K in the leaves had.

• 但叶片K、Mn元素含量与虫害的危害程度之间存在线性相关关系,受害越严重,叶片中Mn、K元素含量越高。