International Journal of Economic Plants
  • Year: 2017
  • Volume: 4
  • Issue: 2

Relative Resistance of Different Insecticides on Chilli Thrips, Scirtothrips dorsalis (Hood) in Andhra Pradesh

  • Author:
  • K. Vanisree1,, S. Upendhar1, P. Rajasekhar2, G. Ramachandra Rao3
  • Total Page Count: 4
  • Page Number: 66 to 69

1Dept. of Entomology, Agricultural College, PJTSAU, Jagtial, Telangana (505 529), India

2Dept. of Entomology, Agricultural Research Station, ANGRAU, Nellore, Andhra Pradesh (522 101), India

3Dept. of Entomology, Advanced center for PG Studies, ANGRAU, Guntur, Andhra Pradesh (522 101), India

*Corresponding Author K. Vanisree e-mail: vani.ento@gmail.com

Online published on 30 June, 2018.

Abstract

The thrips population from Guntur district on chillies has developed high degree of resistance to various insecticides viz., monocrotophos, acephate, dimethoate, phosalone, carbaryl and triazophos followed by the population of Vizianagaram district with low levels of resistance implicating selection pressure and consequent resistance levels. The S. dorsalis population of Guntur district acquired resistance to the tune of 4.19 folds to monocrotophos, 5.62 folds to acephate, 5.59 folds to dimethoate, 6.80 folds to phosalone, 4.06 folds to carbaryl and 3.39 folds to triazophos at LC50 in comparison with the Vizianagaram district population.

Keywords

Chilli, insecticides, management, resistance, thrips