河北地区白蜡树主要害虫的发生与防治

白蜡属Fraxinus L.树木是我国绿化和用材林的主要树种,随着白蜡在我国被大面积推广栽植,其害虫的发生量与危害程度也在不断加重,导致被害树生长不良、甚至死亡,造成严重的生态和经济损失。河北地区危害白蜡的主要害虫有7种,按取食方式分为蛀干(茎)、刺吸树体汁液和食叶3类,笔者分别对其各自发生与危害特点进行综合描述,并对每种害虫提出综合防治措施,为及时发现和治理白蜡害虫提供参考。

Occurrence and control of the main insect pests against Fraxinus L. in Hebei province

Ash trees,Fraxinus L.,are mainly used as greening trees and timber forest in China.With the widespread of planting,the occurrence and damage degree of pests on Fraxinus L.are also increasing,resculting in the poor growth or even death of injured trees,and causing serious ecological and economic losses.According to the way of acquiring food,the main pests were 7 species divided into 3 groups,the wood borer,stinging and sucking pests and defoliators.The characteristic of occurrence,damage and comprehensive controlling measures of these insects were summarized and described.