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Status of Insecticide Resistance in Spodoptera litura in Andhra Pradesh, India

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Relation http://oar.icrisat.org/4927/
http://dx.doi.org/10.1002/(SICI)1096-9063(199707)50:33.0.CO;2-9
 
Title Status of Insecticide Resistance in Spodoptera litura in Andhra Pradesh, India
 
Creator Armes, N J
Wightman, J A
Jadhav, D R
Ranga Rao, G V
 
Subject Plant Pathology
Entomology
 
Description Twenty-two strains of the tobacco caterpillar, Spodoptera litura (F.) (Lepidoptera: Noctuidae), collected from groundnut crops of eight locations in Andhra Pradesh, India, between 1991 and 1996 were assayed in the F1 generation for resistance to commonly used insecticides. Resistance levels ranged as follows: cypermethrin, 0·2- to 197-fold; fenvalerate, 8- to 121-fold; endosulfan, 1-to 13-fold; quinalphos, 1- to 29-fold; monocrotophos, 2- to 362-fold and methomyl, 0·7- to 19-fold. In nearly all strains pre-treatment with the metabolic inhibitor, piperonyl butoxide, resulted in complete suppression of cypermethrin resistance (2- to 121-fold synergism), indicating that enhanced detoxification by microsomal P450-dependent monooxygenases was probably the major mechanism of pyrethroid resistance. Pre-treatment with the synergist DEF, an inhibitor of esterases and the glutathione S-transferase system, resulted in a 2- to 3-fold synergism with monocrotophos indicating that esterases and possibly glutathione S-transferases were at least to some extent contributing to organophosphate resistance.
 
Publisher Wiley
 
Date 1997
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/4927/1/Pestic_Sci_50_240-248_1997.pdf
Armes, N J and Wightman, J A and Jadhav, D R and Ranga Rao, G V (1997) Status of Insecticide Resistance in Spodoptera litura in Andhra Pradesh, India. Pest Management Science, 50 (3). pp. 240-248. ISSN 1526-4998