FIELD EFFICACY OF NEWER INSECTICIDES ON POD BORER (LAMPIDES BOETICUS LINN.) IN GREEN GRAM (VIGNA RADIATA) (L.) WILZECK

摘要

A field experiment was conducted to study the effect of different newer insecticides on pod borer (Lampides boeticus) of green gram variety 'Nayagarh Local' during summer, 2012. Pod borer (Lampides boeticus), Lycaenidae, Lepidoptera was found damaging the crop from 52 DAS to 72 DAS with peak population of 2 larvae/plant on 64 DAS. Amongst six insecticides tested spinosad and emmamectin benzoate were the most promising insecticides against the pest species(2.66 and 3.33 insects per 10 plants, respectively) as against 18.33 nos/ 10 plant in untreated control. Cartap hydrochloride, cyazypyr were the other promising insecticides against the pod borers and kept the pest population less than 6.5/1 Oplants. Thiomethoxam and chlorpyriphos did not produce any significant effect against the pod borer. All the test products except chlorpyriphos yielded more than 5.0q/ha as against 4.42q/ha in control.