Field evaluation of methoxyfenozide 24 SC against leaf miner, Aproaerema modicella (Deventer) and its effect on predatory coccinellids of groundnut

Abstract

The experiment on efficacy of methoxyfenozide 24 SC on leaf miner, Aproaerema modicella and its effects on coccinellids was conducted during kharif 2012 and rabi 2013 on groundnut variety, VRI 1. Among different doses of methoxyfenozide 24 SC (180, 210 and 240 g a.i/ha), chlorpyriphos 20 EC@225 g a.i/ha, lamda cyhalothrin 5 EC@15 g a.i/ha and dichlorvos 76 SC@750 g a.i/ha, the significant least incidence of Aproaerema modicella was recorded in methoxyfenozide @240ga.i./ ha(4.8%/plants) followed by methoxyfenozide@210 g a.i./ha (5.6%/plants) and methoxyfenozide@180 g a.i./ha (7.2%/ plants). Maximum population of coccinellids was recorded in the untreated check (3.4 nos./plant) followed by methoxyfenozide@180 g a.i./ha (2.9nos./plant),methoxyfenozide@210 g a.i./ha (2.8 nos./plant) and methoxyfenozide@240 g a.i./ha (2.7nos./plant).High pod yield was recorded in the plots treated with methoxyfenozide@240 g a.i./ha (3704.5 kg/ ha) followed by methoxyfenozide@210 ga.i./ha (3559.5 kg/ha) and methoxyfenozide @180ga.i./ha (3441.5 kg/ha).