【摘要】 筛孔二节象Aclees cribratus Gyllenhyl是新发现危害香椿Toona sinensis的毁灭性害虫，属山东省新记录物种.本文描述了筛孔二节象的生活史、危害特点并初步进行了其化学防治研究.结果显示：筛孔二节象在山东菏泽市1年发生1代，世代不整齐，以幼虫钻蛀树干造成危害，危害处流出红褐色的树胶，堵塞筛管和导管，导致香椿死亡.使用1.8%阿维菌素乳油倍液10倍液、25%噻虫嗪悬浮剂10倍液蛀孔注药可有效防治其幼虫，防治效果分别达89.52%和86.53%;使用绿色威雷300倍液、2%噻虫啉微胶囊悬浮剂600倍液可有效防治筛孔二节象成虫，防治效果分别达96.93%和96.39%.更多还原

【Abstract】 Aclees cribratus Gyllenhyl is a newly discovered destructive pest of Toona sinensis, which is a new record species in Shandong Province. This paper describes the life history, hazard characteristics and chemical control of A. cribratus Gyllenhyl. The results show that A. cribratus Gyllenhyl produces one generation per year in Heze Shandong and the generation is irregular. The larvae bores the trunk of the tree and causes damage. The reddish-brown gum flows from the wound, blocking the sieve tube and conduit, and causes the death of T. sinensis. 1.8% avermectin emulsifiable concentrate 10 times solution and 25% thiamethoxam suspension 10 times solution can effectively control its larvae, with the effect of 89.52% and 86.53%, respectively. The 300-fold solution of green Weilei and the 600-fold solution of 2% thiacloprid microcapsule suspension agent can effectively control adult, and the control effect is 96.93% and 96.39% respectively.更多还原