Efficacy and economics of certain new generation novel insecticides against legume pod borer, Maruca vitrata (Geyer) on pigeonpea (Cajanus cajan L.)

Sreekanth, M. and Lakshmi, M.S.M and Rao, Y.K. (2015) Efficacy and economics of certain new generation novel insecticides against legume pod borer, Maruca vitrata (Geyer) on pigeonpea (Cajanus cajan L.). Journal of Applied Biology & Biotechnology, 3 (3). pp. 7-10.

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Abstract

Two field experiments were conducted during Kharif, 2010 and 2011 to find out economical control measures against legume pod borer, Maruca vitrata (Geyer) on pigeonpea. Experimental results showed that the per cent inflorescence damage due to Maruca was lowest in chlorantraniliprole 18.5 SC (2.08%) and flubendiamide 39.35 SC (3.64%), followed by spinosad 45 SC (6.21%) as against control (31.18%) with 93.3, 88.3 and 80.1 per cent reduction over control respectively. Similarly, pod damage due to legume pod borer was lowest in chlorantraniliprole (4.30%), flubendiamide (6.03%) and spinosad (8.80%) as against control (47.28%) with 90.9, 87.3 and 81.4 per cent reduction over control respectively. Highest grain yield was recorded in chlorantraniliprole treated plots (686.1 kg/ha) with 127.5 per cent increase over control, followed by flubendiamide (595.8 kg/ha) and spinosad (589.0 kg/ha) with 97.6 and 95.3 per cent increase over control (301.6 kg/ha) respectively. The cost effectiveness of chlorantraniliprole and flubendiamide was also high and very favorable with incremental costbenefit ratios of 1: 4.64 and 1: 4.50 respectively, followed by indoxacarb (1: 3.67), emamectin benzoate (1: 3.13) and spinosad (1: 2.97).

Item Type: Article
Uncontrolled Keywords: Insecticides, Maruca vitrata, Pigeonpea and Legume pod borer
Author Affiliation: Regional Agricultural Research Station, Lam, Guntur – 522 034, India
Subjects: Social Sciences > Agricultural Economics
Divisions: Pigeonpea
Depositing User: Mr B Krishnamurthy
Date Deposited: 27 Aug 2015 05:19
Last Modified: 27 Aug 2015 05:19
URI: http://eprints.icrisat.ac.in/id/eprint/13759

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