Journal of Entomological Research
SCOPUSWeb of Science
  • Year: 2021
  • Volume: 45
  • Issue: suppl

Effect of silica based surfactant on the efficacy of different insecticides against onion thrips

1National Horticultural Research and Development Foundation, Bagwani Bhawan, Janakpuri, New Delhi - 110 057, India

National Horticultural Research and Development Foundation (NHRDF), Regional Research Station, Chitegaon Phata, Nashik - 422 003, Maharashtra, India

*Corresponding author's E-mail: karnal@nhrdf.com

Online published on 17 February, 2022.

Abstract

A field experiment was conducted for two consecutive years in rabi on onion variety Agrifound Light Red. The result showed that over all lowest mean thrips population (5.37 nymphs/plant) were recorded in spray of Fipronil @ 1.0 ml/L + silica based surfactant as well as highest gross yield (342.24 q/ha) and marketable yield (326.99 q/ha). The B:C ratio (9.11:1) was also recorded in the same treatment. The efficacy of insecticides was increased by addition of silica based surfactant and minimizing thrips population as well as increased the yield of onion bulbs.

Keywords

Onion, Insecticides alongwith silicon, Management, Non silicon surfactant, Thrips