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Journal of Entomology
  Year: 2008 | Volume: 5 | Issue: 3 | Page No.: 138-147
DOI: 10.3923/je.2008.138.147
 
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Spectrum of Insecticide Resistance in Whitefly from Upland Cotton in Indian Subcontinent

Amit Sethi and V.K. Dilawari

Abstract:
Cotton, Gossypium hirsutum L. is a chief fiber crop of India and contributes significantly to Indian agricultural and industrial economy. Its economic cultivation is very much affected by insect pest infestations. Whitefly, Bemisia tabaci (Genn.) has attained a status of key pest among these insect pests and the main reliance has been on the use of insecticides for its management. Insecticide resistance develops more readily due to their injudicious and indiscriminate use by growers. Thus, it is imperative to test the level of resistance to design a successful insecticide resistant management program. In this study, the resistance level to triazophos, endosulfan and imidacloprid were determined in whitefly populations from cotton growing areas of India. Whitefly populations from seven different locations; Guntur, Coimbatore, Kolar, Ludhiana, Bathinda, Sri Ganganagar and Sirsa were tested for resistance at two discriminating doses (0.25 and 1%) of each insecticide. Populations from all locations displayed widespread resistance to triazophos, endosulfan and imidacloprid with highest in Bathinda and lowest in Coimbatore. High resistance levels were recorded in populations from North India compared to populations from south India against all three insecticides. Whitefly populations from all locations did not show any resurgence against any insecticide.
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How to cite this article:

Amit Sethi and V.K. Dilawari , 2008. Spectrum of Insecticide Resistance in Whitefly from Upland Cotton in Indian Subcontinent. Journal of Entomology, 5: 138-147.

DOI: 10.3923/je.2008.138.147

URL: https://scialert.net/abstract/?doi=je.2008.138.147

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