Comparative efficacy of insecticides and biopesticides against Bactrocera spp. infesting cucumber

Abstract

Evaluation of insecticides and biopesticides against Bactrocera spp. Infesting cucumber revealed lambda cyhalothrin (0.008%) as the most effective insecticide, with infestation values of 13.59 and 11.69 per cent, during 2014 and 2015, respectively. It was followed by the same insecticide at lower concentration (0.004%) where, fruit infestation of 19.52 and 16.13 per cent, were recorded during 2014 and 2015, respectively. Spinosad (0.004 and 0.002%) was next in the order of effectiveness with fruit infestation values of 25.41, 23.69 and 28.45, 25.85 per cent, during 2014 and 2015, respectively and was at par with fruit infestation of 15.48 and 24.15 per cent in deltamethrin (0.0056%). The per cent infestation recorded with azadirachtin (0.001 and 0.002%) was at par with malathion (0.1 and 0.2%).