秦皇岛地区光肩星天牛的危害调查与噻虫啉防治效果

Harzard investigation of Anoplophora glabripennis in Qinhuangdao area and control effect of thiacloprid capsule suspension

为有效控制光肩星天牛Anoplophora glabripennis危害,对其在秦皇岛地区发生与危害情况进行调查,开展化学药剂防治试验。结果表明,光肩星天牛对其寄主美国红枫Acer rubrum、五角枫Acer mono、金叶复叶槭Acer negundo、栾树Koelreuteria paniculata、柳树Salix babylonica、银中杨Populus alba×P.berolinensis和榆树Ulmus pumila,喜食程度依次递减;集中片林中受害树被大斑啄木鸟Dendrocopos major啄食率可高达35%;使用2%噻虫啉微囊悬浮剂(CS)2000倍液在7月上旬防治成虫效果最佳。提出预防为主、利用天敌与化学药剂防治为辅的防治技术措施。

In order to control the damage of Anoplophora glabripennis to trees in Qinhuangdao area,occurrence and damage of A.glabripennis were investigated,and chemical control experiment was carried out.The results showed that A.glabripennis had a diet preference for Acer rubrum,Acer mono,Acer negundo,Koelreuteria paniculate,Salix babylonica,Populus alba×P.berolinensis,Ulmus pumila in decreasing order.The pecking rate of Dendrocopos major on damaged trees in the concentrated patch forest was up to 35%.The optimal concentration and time was 2000 times of 2%thiacloprid capsule suspension to control A.glabripennis adults in early July.The prevention and control technical measures of giving priority to prevention and supplemented by natural enemies and chemical control were put forward.