3％高渗苯氧威防治柽柳条叶甲试验

Control of Dirohabda elongata desericola Chen with high permeation fenoxycarb 3 %

柽柳条叶甲Dirohabda elongata desericola Chen是我国西北地区危害柽柳的主要害虫，分布于新疆、甘肃、宁夏、内蒙古等地，作者选用无公害仿生制剂3％高渗苯氧威对柽柳条叶甲进行了林间防治试验，结果表明林间药剂以1：4000倍最为经济有效。喷药后1d，幼虫死亡率为81．5％，2d为95．1％，3d为97．5％，校正死亡率97．4％。

Dirohabda elongata desericola Chen was a pest insect attacking Tamarix chinensis in Southwest China. It distributed in Xinjiang, Gansu, Ningxia, Inner Mongolia and so on. A pollution-free biomimetic pesticide, high permeation fenoxycarb 3 %, was selected in the field experiment against Dirohabda elongata desericola and the result showed it was most effective and economic in the concentration of 1：4 000. The mortality of the larvae reached 81.5 % 1 day after the application,95.1% 2 days after the application and 97.5% 3 days after the application. The corrected mortality was 97.4%.