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2014•Trends in Biosciences/Trends in biosciencesRequires access

Field Evaluation of Newer Insecticides against Helicoverpa armigera and Maruca testualalis on pigeonpea

R. G. Awale, N. D. Tamboli, S. C. Patil, A.J. Chormule

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Abstract

The field experiment was conducted during kharif season of 2010–11 on pigeonpea, Cajanus cajan L. with an objective to find out the efficacy of newer insecticides like Novaluron 10% EC, Indoxacarb 15% SC, Thiacloprid 21.7% SC, Thiodicarb 75% WP and Endosulphan 35% ECagainst gram pod borer, Helicoverpa armigera (Hubner). The results of the study indicated that all the treatments were significantly superior over untreated control in reducing H. armigera and M. tesstulalis population. Amongst the treatments, the treatment with novaluron @ 75 g a.i./ha proved to be the best treatment reducing H. armigera population to a minimum extent of 0.55 larvae/plant, pod damage (8.75%), grain damage (22.75%) and highest grain yield (1686 kg/ha). It was at par with the treatment indoxacarb @ 21.75 g a.i./ha.

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What this paper is about

The field experiment was conducted during kharif season of 2010–11 on pigeonpea, Cajanus cajan L. with an objective to find out the efficacy of newer insecticides like Novaluron 10% EC, Indoxacarb 15% SC, Thiacloprid 21.7% SC, Thiodicarb 75% WP and Endosulphan 35% ECagainst gram pod borer, Helicoverpa armigera (Hubner). The results of the study indicated that all the treatments were significantly superior over untreated control in reducing H. armigera and M. tesstulalis population. Amongst the treatments, the treatment with novaluron @ 75 g a.i./ha proved to be the best treatment reducing H. armigera population to a minimum extent of 0.55 larvae/plant, pod damage (8.75%), grain damage (22.75%) and highest grain yield (1686 kg/ha). It was at par with the treatment indoxacarb @ 21.75 g a.i./ha.

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Available abstract

The field experiment was conducted during kharif season of 2010–11 on pigeonpea, Cajanus cajan L. with an objective to find out the efficacy of newer insecticides like Novaluron 10% EC, Indoxacarb 15% SC, Thiacloprid 21.7% SC, Thiodicarb 75% WP and Endosulphan 35% ECagainst gram pod borer, Helicoverpa armigera (Hubner). The results of the study indicated that all the treatments were significantly superior over untreated control in reducing H. armigera and M. tesstulalis population. Amongst the treatments, the treatment with novaluron @ 75 g a.i./ha proved to be the best treatment reducing H. armigera population to a minimum extent of 0.55 larvae/plant, pod damage (8.75%), grain damage (22.75%) and highest grain yield (1686 kg/ha). It was at par with the treatment indoxacarb @ 21.75 g a.i./ha.

Key concepts: Helicoverpa armigera, Indoxacarb, Novaluron, Thiacloprid, Cajanus, Toxicology, Kharif crop, Biology

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Field Evaluation of Newer Insecticides against Helicoverpa armigera and Maruca testualalis on pigeonpea — Research Paper | ScholarLens