【摘要】 为了明确替代氟虫腈用于防治稻纵卷叶螟的药剂效果,对24%氰氟虫腙SC、30%氟虫双酰胺.阿维菌素SC、20%氯虫苯甲酰胺SC和32%丙溴磷.氟铃脲EC进行田间药效试验,结果表明这4种药剂有效用量分别为180、135、30和240 g/hm2时在药后3~15 d对2~3龄稻纵卷叶螟的防效分别达72.85%~86.69%、85.92%~85.72%、73.16%~90.13%和62.14%~87.26%,与氟虫腈相当,并且对水稻捕食性天敌黑肩绿盲蝽和蜘蛛的安全性要高于氟虫腈,能作为防治稻纵卷叶螟的替代药剂使用。更多还原

【Abstract】 The efficacies of four insecticides(24% Metaflumizone SC,30% FlubendiamideoAvermectins SC,20% Chlorantraniliprole SC and 32% ProfenofosoHexaflumuron EC) against the 2nd~3rd instar larvae of Cnaphmlocrocis medindlis(Guenee) in rice fields were determined through field tests.The control effect of applying these four insecticides at their effective dose(180,135,30 and 240 g/hm2 respectively) against C.medindlis separately reached 72.85%~86.69%,85.92%~85.72%,73.16%~90.13% and 62.14%~87.26% within 3~15 days after their application,being similar to that of Fipronil.They were safer to Cyrtorrhinus lividipennis Reuter and spider in rice field than Fipronil.Thus,these 4 insecticides could be used as the effective substitutes of Fipronil in the control of C.medindlis.更多还原