ESTERASE VARIATION AND ORGANOPHOSPHEROUS RESISTANCE IN corros APHID, Aphis gossypii (GLOVER) | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 7, Volume 31, Issue 1, January 2006, Page 465-471 PDF (1.83 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2006.235158 | ||||
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| Authors | ||||
| H. B. Homam,; M. I. Sheded; H. A. Mohamed | ||||
| Plant Protection Research Institute, Dokki, Giza, Egypt. | ||||
| Abstract | ||||
| Cotton aphid, Ap < /em>his gossyp < /em>ii (Glover) adults were bioassed with Malathion organophosphorus (OP) insecticide. The roles of carboxyesterase activity in resistance to Ops are discussed along 15 generations. Five substrates (a-naphthyl acetate, Indoxyl acetate, Lurate actate, Myristate acetate and Acetylthiocholine iodide) were screened. The results showed that, esterase activity, measured by using a- naphthyl acetate and lndoxyl acetate can detect the level of OP resistance and used as a marker for OP resistance in field population. Bands No.1, 3 and 6 were classified as carboxyesterase in resistant strain. The diagnostic resistance-specific esterase bands have been used as a resistance marker to detect the population resistance in field for enhancing the control strategy. | ||||
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