Indian Journal of Entomology

Open Access
SCOPUSWeb of Science
  • Year: 2020
  • Volume: 82
  • Issue: 4

Effect of some insecticides on aenasius arizonensis (Girault) parasitizing cotton mealybug phenacoccus solenopsis tinsley

  • Author:
  • T D Nidheesh*,3, N A Shylesha1,3, Kuldeep Sharma2,3
  • Total Page Count: 4
  • Published Online: Feb 5, 2021
  • Page Number: 731 to 734

1ICAR-National Bureau of Agricultural Insect Resources, Hebbal, Bengaluru560024

2Department of Entomology, Maharana Pratap University of Agriculture and Technology, Udaipur313001

3Department of Agricultural Entomology, University of Agricultural Sciences, GKVK, Bengaluru560065

*Email: nidheeshtdas123@gmail.com (corresponding author)

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Abstract

The present study was carried out to evaluate the safety of few new insecticide molecules on Aenasius arizonensis, a major parasitoid of cotton mealybug Phenacoccus solenopsis Tinsley. Among the treatments, profenophos 50%EC, thiamethoxam 25% WG and dinotefuran 20% SG were found to be highly toxic, whereas, pymetrozine 50%WG and llonkamkl 50% WG were found to be moderately toxic. On the contrary, azadirachtin 1%EC proved to be the safer one with least toxicity. Maximum adult emergence was observed in untreated check (95.06%) followed by azadirachtin 1% EC (89.28%) and buprofezin 25% SC (84.43%). Pymetrozine 50% WG @ 0.60 g/l and azadirachtin 1% EC @ 2.00 ml/ l were found to be safer.

Keywords

Insecticides, Toxicity, Safety, Profenophos, Thiamethoxam, Dinotefuran, Flonicamid, Pymetrozine, Azadirachtin, Aenasius arizonensis, Phenacoccus solenopsis, Adult emergence