注干法施用吡虫啉对光肩星天牛幼虫的防治效果

The Effects of the Larvae of Anoplora glabripennis (Motschulsky) with Stem Injection of Imidalopirid

采用养虫笼捆绑树干法,接入配对健康光肩星天牛成虫,待卵孵化率达80%时,以注干法施用不同浓度的吡虫啉胶囊防治光肩星天牛初孵幼虫。结果表明:树木胸径注药量为0.32mL/cm时防治效果最好,可达90%以上。用HLPC方法分析树叶片中的残留量,并对施药后不同时期药剂残留量与光肩星天牛幼虫的防治效果进行分析,得出防治效果与树叶片中的残留量存在线性关系。

In this research trunk was binded with breeding cage and putted healthy adults (a male and a female) of Anoplora glabripennis in.When incubating rate was up to 80%,the different concentrations of imidalopirid capsules were injected to control the larvae of A.glabripennis.The experimental results showed that the efficiency was best when injecting amount was (0.32mL/cm) DBH,exceeded 90%.The insecticide residue amount of was analyzed with HLPC,and it had linear relationship between control effect and insecticide residue amount of the leaves in different periods.