Bioefficacy of insecticides against aphid, Lipaphis erysimi infesting cabbage

摘要

A field experiment was conducted at Agronomy farm, B A College of Agriculture, Anand Agricultural University, Anand during Rabi, 2019 to evaluate the efficacy of nine selected insecticides (Sulfoxaflor 0.0218%, Spirotetramat 0.007%, Flonicamid 0.015%,Tolfenpyrad 0.025%, Acetamiprid 0.014%, Thiamethoxam 0.01%, Dinotefuran 0.008%, Dimethoate 0.03%, Afidopyropen 0.01%) against cabbage aphid, Lipaphis erysimi compared to control. The Tolfenpyrad 0.025%, Flonicamid 0.015% and Afidopyropen 0.01 % was observed significantly superior followed by Thiamethoxam 0.01 %, Spirotetramat 0.007%, Dinotefuran 0.008% and Sulfoxaflor 0.0218%. while, treatments like Dimethoate 0.03% and Acetamiprid0.014% was less effective in reducing aphid population. The highest yield of cabbage was obtained from the plots treated with Tolfenpyrad 15 EC (192.30 q/ha) followed by Flonicamid 50 WG (186.33 q/ha). The highest increase in yield over control registered from the plot treated with Tolfenpyrad 15 EC (94:89%) followed by Flonicamid 50 WG (88.84%).