泡桐叶药剂防治试验

Experiments of Several Insecticides in Controlling Basiprionota bignata Boh

通过室内毒力测定和林间防治试验,筛选出防治泡桐叶的高效、低毒杀虫剂:敌杀死(4000x)、速灭杀丁(4000 x)、喹硫磷(2000 x)等,林间防治效果显著。喷药3d后,其校正虫口减退率均为100％,而且前两者对害虫击倒性亦较强,可削弱其幼虫在被害叶片上的附着能力,使之易从树上落到地表,起到良好的防治作用。

The toxicities and efficacies of several insecticides on Basiprionota bignata Boh were tested in the laboratory and in the field. By means of experiments, deeamethrin, fenvalerate and quinalphos, which were more efficacious than the others, were selected. In the field, the effects of the three insecticide's were outstanding whose rates of decreasing population of the pest were all 100% after 3 days. Besides, the two former insecticides had the character of strong knockdown, so they could weaken the capability for the pest to adhere to the leaves, playing good role of controlling.