用吡虫啉对台湾乳白蚁进行室内毒效试验和林间毒土屏障试验表明 :室内用w为 0 0 5 %的吡虫啉即可在 6d内全部杀死白蚁 ;林间毒土屏障试验用w为 0 0 5 %～ 2 0 0 %吡虫啉处理过的土壤 ,1a后观察发现台湾乳白蚁完全不能穿透 ,而用w为 0 0 5 %的毒死蜱处理过的土壤全部被白蚁穿透 ,并且松木块遭严重取食 林间同浓度比较试验 ,吡虫啉所需浓度比毒死蜱低 Imidacloprid on indoor millet termite toxicity test and inter-forest toxic soil barrier test showed that indoor use of imidacloprid 0% 0 5% can kill all termites within 6d; Inter-forest toxic soil barrier test w is 0 0-5% ~ 200% imidacloprid-treated soil. After 1-year-old observation, it was found that the white termites could not penetrate completely. However, all the soil treated with 0 0% chlorpyrifos was completely penetrated by termites, Severe feeding forest with the same concentration test, imidacloprid required concentration lower than chlorpyrifos