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Efficacies of 4 Insecticides on Cnaphmlocrocis medindlis(Guenee) in Fields

Guoliang Cai

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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.

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What this paper is about

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.

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Available 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.

Key concepts: Fipronil, Toxicology, Biology, Instar, Chlorpyrifos, Larva, Pesticide, Agronomy

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