Carbamate and organophosphate resistance in cotton pests in India, 1995 to 1999

Kranthi, K R and Jadhav, D R and Wanjari, R R and Ali, S S and Russell, D (2001) Carbamate and organophosphate resistance in cotton pests in India, 1995 to 1999. Bulletin of Entomological Research, 91 (1). pp. 37-46. ISSN 0007-4853

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Monitoring for organophosphate and carbamate resistance was carried out on five major insect pests of cotton collected from 22 cotton-growing districts across India. Resistance was monitored in Helicoverpa armigera (Hübner) and Pectinophora gossypiella (Saunders) for the period 1995–1999 and for Spodoptera litura (Fabricius), Earias vittella (Fabricius) and Bemisia tabaci (Gennadius) in a survey conducted during the 1997–98 cropping season. Of the 53 field strains of H. armigera, only four were found to exhibit resistance to quinalphos, the highest 15-fold, whereas all 16 field strains tested were found to be resistant to monocrotophos. Similarly, out of 40 field strains tested, only eight were found to express appreciable resistance to methomyl. Resistance in P. gossypiella to quinalphos was high in the majority of the strains tested. Of the seven strains of E. vittella tested, two strains from northern India exhibited > 70-fold resistance to monocrotophos. Of the 11 S. litura strains tested, only four were found to exhibit resistance factors of 10 to 30-fold to quinalphos and monocrotophos. All of the B. tabaci field strains exhibited resistance to methomyl and monocrotophos and susceptibility to triazophos. Practical implications for pest control resulting from the observed patterns of cross-resistance between quinalphos, monocrotophos and methomyl are discussed.

Item Type: Article
Subjects: Others > Soil Science
Others > Entomology
Depositing User: Mr Sanat Kumar Behera
Date Deposited: 14 Dec 2011 09:47
Last Modified: 20 Dec 2011 10:41
Official URL:
Projects: NRI /ICRISAT /IACR Projec
Funders: National Resource Institute, Department for International Development
Acknowledgement: The authors are grateful to Dr M.s. Kairon, Director, Central Institute for Cotton Research (CICR), India, for the support and encouragement. We acknowledge the financial support provided by the Natural Resources Institute, UK, through an Adaptive Research Initiative of the UK Government's Department for International Funding (DFIDUK) as a NRI /ICRISAT /IACR Project. We would like to thank Dr Alan McCaffery, Zeneca and Dr Nigel Armes,Cynamid, for the susceptible strains. We thank D r Agricultural University (ANCRAU), Hyderabad, Dr Monga, Surulivelu, CICR, Dr Venugopala Rao, Acharya N.C. Ranga CICR, Mr Ani! Kakkar, Excel Industries, Dr Joginder Singhand Dr Kapoor, Punjab Agricultural University (PAU), Punj ab, for sending insect cultures whenever requested. DJadhav acknowledges receipt o f a Rothamsted Intemational fellowship at IACR-Rothamsted in the UK, which facilitated the establishment of a whitefly testing laboratory at the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), India
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