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2009•Modern AgrochemicalsRequires access

Comparative Study of Efficacies of Insecticides Against Rice Leaf Roller

Cao Wei-ju

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Abstract

When avermectin 1.8% EC applied at 1 500 mL/hm2,emamectin benzoate 1% EC applied at 1 500 mL/hm2,fipronil 5% SC applied at 750 mL/hm2,dursban plus fipronil 48% EC applied at 900 mL/hm2,fipronil plus isoprocorb 25% WP applied at 750 mL/hm2 in field plot trials respectively,they all provided above 85% leaf protection and control efficacies against rice leaf roller at both 7d and 15d after application.The leaf protection and control efficacies of above mentioned insecticides are better than that of others.

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What this paper is about

When avermectin 1.8% EC applied at 1 500 mL/hm2,emamectin benzoate 1% EC applied at 1 500 mL/hm2,fipronil 5% SC applied at 750 mL/hm2,dursban plus fipronil 48% EC applied at 900 mL/hm2,fipronil plus isoprocorb 25% WP applied at 750 mL/hm2 in field plot trials respectively,they all provided above 85% leaf protection and control efficacies against rice leaf roller at both 7d and 15d after application.The leaf protection and control efficacies of above mentioned insecticides are better than that of others.

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Available abstract

When avermectin 1.8% EC applied at 1 500 mL/hm2,emamectin benzoate 1% EC applied at 1 500 mL/hm2,fipronil 5% SC applied at 750 mL/hm2,dursban plus fipronil 48% EC applied at 900 mL/hm2,fipronil plus isoprocorb 25% WP applied at 750 mL/hm2 in field plot trials respectively,they all provided above 85% leaf protection and control efficacies against rice leaf roller at both 7d and 15d after application.The leaf protection and control efficacies of above mentioned insecticides are better than that of others.

Key concepts: Fipronil, Avermectin, Chlorpyrifos, Emamectin benzoate, Toxicology, Biology, Pesticide, Agronomy

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