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2012•Guangdong nongye kexueOpen access

Toxicity and control efficiency of 5 insecticides on Spodoptera exigua Hübner

Xuncong Ji

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Abstract

The trial of 5 mainstream insecticides against Spodoptera exigua Hubner through the laboratory toxicity and field trials were studied.The results showed that the best choices in the Spodoptera exigua chemical control was 10% Chlorfenapyr EC.It showed a good efficiency to the best armyworm control with 92.11%.Then 2.5% Spinosad SC was a kind of insecticide which effect was not so well as 10% Chlorfenapyr with the armyworm control of 85.49%.However 2% Avermectins EC,4.5% Beta cypermethrin EC and 48% Chlorpyrifos EC had poor effect in control of Spodoptera exigua,and should be used carefully.

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What this paper is about

The trial of 5 mainstream insecticides against Spodoptera exigua Hubner through the laboratory toxicity and field trials were studied.The results showed that the best choices in the Spodoptera exigua chemical control was 10% Chlorfenapyr EC.It showed a good efficiency to the best armyworm control with 92.11%.Then 2.5% Spinosad SC was a kind of insecticide which effect was not so well as 10% Chlorfenapyr with the armyworm control of 85.49%.However 2% Avermectins EC,4.5% Beta cypermethrin EC and 48% Chlorpyrifos EC had poor effect in control of Spodoptera exigua,and should be used carefully.

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Available abstract

The trial of 5 mainstream insecticides against Spodoptera exigua Hubner through the laboratory toxicity and field trials were studied.The results showed that the best choices in the Spodoptera exigua chemical control was 10% Chlorfenapyr EC.It showed a good efficiency to the best armyworm control with 92.11%.Then 2.5% Spinosad SC was a kind of insecticide which effect was not so well as 10% Chlorfenapyr with the armyworm control of 85.49%.However 2% Avermectins EC,4.5% Beta cypermethrin EC and 48% Chlorpyrifos EC had poor effect in control of Spodoptera exigua,and should be used carefully.

Key concepts: Exigua, Chlorfenapyr, Spodoptera, Beet armyworm, Emamectin benzoate, Toxicology, Spinosad, Chlorpyrifos

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Toxicity and control efficiency of 5 insecticides on Spodoptera exigua Hübner — Research Paper | ScholarLens