Efficacy of tolfenpyrad against red pumpkin beetle Aulacophora Foveicollis lucas in Cucumber Mahato Saraswati, Misra H. P.* Department of Entomology, College of Agriculture, OUAT, Bhubaneswar, 751003, Odisha *Corresponding author Email: hara-agri@yahoo.co.in
Online published on 30 April, 2019. Abstract A field experiment was conducted at the Central Research Station, Orissa University of Agriculture Technology, Bhubaneswar in RBD with nine treatments replicated thrice during kharif, 2016 and rabi, 2016–17 to evaluate the efficacy of eight pesticides viz., tolfenpyrad 15% EC @ 150 g a.i./ha, fipronil 5% SC @ 50 g a.i./ha, indoxacarb 14.5% SC @ 72.5 g a.i./ha, flubendiamide 480 SC @ 78.70 g a.i./ha, chlorantraniliprole 18.5% SC @ 30.83 g a.i./ha, spinosad 45% SC @ 75 g a.i./ha, cartap hydrochloride 50% SP@ 375 g a.i./ha and acephate 75% SP @ 375 g a.i./ha against the red pumpkin beetle Aulacophora foveicollis Lucas on cucumber cv. “Machaar”. All the insecticides evaluated were at par and significantly suppressed adult red pumpkin beetle (RPB) population up to 15 days after spraying to the extent of 77.11 to 81.59% and 75.46 to 82.59% over control during kharif, 2016 and rabi, 2016–17, respectively. The leaf-dip bioassay of tolfenpyrad against RPB revealed LC50 of 32.88 ppm with a fiducial limit of 25.41 to 42.56 ppm. Top Keywords Red pumpkin beetle, cucumber, insecticides, tolfenpyrad, field efficacy, leaf dip bioassay, baseline toxicity. Top |