1998年以来,河北省唐山凤凰山公园东侧道路上的合欢受吉丁虫不同程度的危害,受害树木达30%,于8月间剥开其中3棵死树皮检查,在20cm×5cm的死皮下,吉丁虫幼虫数量达2～5头,对此路北区绿化处采取以下措施,使虫害得到了有效控制:1于5月中旬成虫羽化前树干涂白(高度达1.2～1.3m,防止 Since 1998, Acacia on the east side of Fenghuangshan Park in Tangshan City of Hebei Province has been damaged to varying degrees by Jintin, with 30% of the trees affected. In August, three tree barks were peeled off and examined in 20cm × 5cm In the dead skin, the number of larvae of jingles larvae reached 2 to 5, and the following measures were taken for the afforestation in the north of Lubei District to effectively control the pests: 1 In mid-May, ,prevent