2004•Journal of Entomological ResearchRequires access

PBO suppressible resistance in cotton aphid, Aphis gossypii Glover to selected insecticides in Andhra Pradesh1

K. Jhansi, G. V. Subbaratnam

Abstract

Studies conducted on the occurrence of metabolic mediated resistance in cotton aphid, A. gossypii to selected insecticides viz., endosulfan, monocrotophos, dimethoate, phosphamidon, carbaryl and cypermethrin using synergist PBO 1:10 and 1:5 ratios exhibited PBO suppressible metabolic resistance of 2.54, 3.33, 1.92, 2.15, 1.28 and 4.44 fold at 1:5 ratio and 3.50, 4.12, 2.40, 4.94,1.88 and 6.67 fold at 1:10 ratio to endosulfan, monocrotophos, dimethoate, phosphamidon, carbaryl and cypermethrin respectively at LC50.

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Key concepts: Phosphamidon, Dimethoate, Monocrotophos, Aphis gossypii, Carbaryl, Endosulfan, Quinalphos, Aphid