Efficacy of some insecticides against foliage feeding lepidopteran pests of potato Satvik P.G.1, Sasmal Arundhati2,*, Mishra Ashok3, Nayak Anjan Kumar1 1Department of Entomology, College of Agriculture, OUAT, Bhubaneswar, Odisha 2Regional Research and Technology Transfer Station, Coastal zone, OUAT, Bhubaneswar, Odisha 3AICRP on Potato, OUAT, Bhubaneswar, Odisha *Corresponding author: Email: sasmalarundhati@gmail.com
Online Published on 17 May, 2023. Abstract Field experiments were carried out during Rabi, 2019-20 and 2020-21, at experimental plots of ‘AICRP on potato Bhubaneswar’ in a randomized block design with seven treatments replicated thrice. The insecticides tested were azadirachtin 0.03% w/w@1500ml/ha, cypermethrin 25% EC @200ml/ha, fipronil 5% SC@1000ml/ha, spinosad 45% SC @187.5ml/ha, cartap hydrochloride 50% SP @1000g/ha and chlorpyriphos 20% EC @2000ml/ha sprayed twice at 30 and 45 days after planting against foliage feeding lepidopteran pests of potato compared with untreated control. On introspection into the result, it was found that cartap hydrochloride 50% SP @1000g/ha was the most effective treatment for reducing the number of foliage-eating lepidopteran pests of potato which caused 90.91%, 88.89%, 93.10% and 82.05% reduction over control in tobacco caterpillar, cut worm, semilooper and gram pod borer infestation respectively. The plots which treated with cartap hydrochloride 50% SP @ 1000g/ha had the highest pooled mean potato tuber yield (14.10 t/ha) and the highest monetary benefit of Rs. 85,480/ha. Top Keywords Potato, Lepidopteran pests, Azadirachtin, Cypermethrin, Fipronil, Spinosad, Cartap hydrochloride, Chlorpyriphos. Top |