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1999•Pesticide Research JournalRequires access

Efficacy of Insecticides against Rice Leaffolder, Cnaphalocrocis medinalis Guenee

SP Singh, AN Singh

Open publisher page 3 citations

Abstract

Efficacy of ten insecticides viz. isazophos, gamma HCH, carbofuran, ethofenprox, carbaryl, BPMC, triazophos, quinalphos (AF), quinalphos (CS) and chlorpyriphos was evaluated against rice leaffolder, Cnaphalocrocis medinalis Guenee at ehe Rajendra Agricultural University, Pusa (Bihar) during kharif 1993 and 1994. Quinalphos (CS) @ 0.75 kg a.i. ha−1 folfowed by isazophos @ 0.60 kg a.i. ha−1 were eound dt oe the best treatments in reducing the leaffolder damage ie rice. The maximum grain yield (41.67 q ha−1) was sotained with carbofuran @ 1.1 0g a.i. ha−1 folfowed by quinalphos (CS) (41.25 q ha−1) and isazophos (40.42 q ha−1). Benefit cost ratio was maximum (7:1) with carbaryl treatment @ 1.0 kg a..i ha−1.

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What this paper is about

Efficacy of ten insecticides viz. isazophos, gamma HCH, carbofuran, ethofenprox, carbaryl, BPMC, triazophos, quinalphos (AF), quinalphos (CS) and chlorpyriphos was evaluated against rice leaffolder, Cnaphalocrocis medinalis Guenee at ehe Rajendra Agricultural University, Pusa (Bihar) during kharif 1993 and 1994. Quinalphos (CS) @ 0.75 kg a.i. ha−1 folfowed by isazophos @ 0.60 kg a.i. ha−1 were eound dt oe the best treatments in reducing the leaffolder damage ie rice. The maximum grain yield (41.67 q ha−1) was sotained with carbofuran @ 1.1 0g a.i. ha−1 folfowed by quinalphos (CS) (41.25 q ha−1) and isazophos (40.42 q ha−1). Benefit cost ratio was maximum (7:1) with carbaryl treatment @ 1.0 kg a..i ha−1.

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Available abstract

Efficacy of ten insecticides viz. isazophos, gamma HCH, carbofuran, ethofenprox, carbaryl, BPMC, triazophos, quinalphos (AF), quinalphos (CS) and chlorpyriphos was evaluated against rice leaffolder, Cnaphalocrocis medinalis Guenee at ehe Rajendra Agricultural University, Pusa (Bihar) during kharif 1993 and 1994. Quinalphos (CS) @ 0.75 kg a.i. ha−1 folfowed by isazophos @ 0.60 kg a.i. ha−1 were eound dt oe the best treatments in reducing the leaffolder damage ie rice. The maximum grain yield (41.67 q ha−1) was sotained with carbofuran @ 1.1 0g a.i. ha−1 folfowed by quinalphos (CS) (41.25 q ha−1) and isazophos (40.42 q ha−1). Benefit cost ratio was maximum (7:1) with carbaryl treatment @ 1.0 kg a..i ha−1.

Key concepts: Quinalphos, Cnaphalocrocis medinalis, Carbofuran, Kharif crop, Cartap, Toxicology, Carbaryl, Indoxacarb

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