几种农药对龙眼长跗萤叶甲的毒力测定

The Evaluation of the Virulence of Several Pesticide Applied to Monolepta occifuvis Gressittet Kimoto

用浸液法测定敌百虫、氯氰菊酯、乐斯本、农地乐、8817-Ⅱ5种杀虫剂对龙眼长跗萤叶甲成虫的LC50 。分别为 894mg/L、19 2 6mg/L、0 5 1mg/L、0 6 1mg/L、和l5 17mg/L ,表明乐斯本、农地乐对该虫具有很高的毒力 ;且该虫对乐斯本。

After applying the evaluation of immersion method,the LC 50 from the 5 pesticide,i e Dipterex,Cypermethrin,Chlorpyrifos Nuell (Chiorpyrifos+cypermethrin) and 8817-Ⅱ(cypermethrin+Isocarbophos) to the imagoes of Monolepta occifuvis Gressittet Kimoto was 894mg/L,19 26mg/L, 0 51mg/L,0 61mg/L and 15 17mg/L respectively The result showed that Chlorpyrifos and Nuell(chiorpyrifos+cypermethrin) were of rather high toxicity to the mentioned insect Moreover,the mentioned insect was rather sensitive to Chlorpyrifos and (chiorpyrifos+cypermethrin)