注干农药防治光肩星天牛的试验研究

对行道树、防风林杨树采用注干农药方法防治光肩星天牛成虫、幼虫的试验研究结果表明：以长效内吸注干乳油效果最好，具有传导快，杀虫效果好，残效期长的特点。长效内吸注干乳油防治结果：行道树罩笼接虫，成虫死亡率达９２．９％，室内饲喂注于后的枝条，成虫死亡率达９９．９％，大面积防风林成虫死亡率达９４．７％，总体被害率４．４％，幼虫１～２龄死亡率达８９．８％。对比了注干农药和农药涂干的效果，防治１～２龄幼虫注干防效比涂干防效高１８．６％。注于农药方法防治光肩星天牛可提高防治效果，降低防治成本，减少对环境的污染，并可兼防其它食叶性和刺吸性害虫。

An Experimental Study on the Control of Anoplophora glabripennis(Motschulsky)with Stem Injection of Insecticides

The stem injection of insecticides were applied to control the larvae andadults of A. glabripennis. The results showed that the efficiency of the long-efficient sys- tematic stem injection insecticide was best with quick conduction,high insecticidal efficiencyand long residual efficiency.The control results were as follows:adult mortality was up to92.9%in the cage-Covered,insect-inculated trees, 99.9%after feeded insecticide-in-jected shoots indcor and 94.7%in the large area windbreak forest; At the total injury rate4.4%condition,the 1-2instar larva mortality was up to 89.9%. The control efficiencies ofstem injection and stem coating of insecticide were compared, stem injection efficiencies was18.6%higher than stem coating in controling the 1-2instar larvae. Stem injction methodcould improve high control efficiency,reduce control costs,decrease environmental pollutionand also control other defoliate and piering-sucking pests.