Homam,, H., Sheded, M., Mohamed, H. (2006). ESTERASE VARIATION AND ORGANOPHOSPHEROUS RESISTANCE IN corros APHID, Aphis gossypii (GLOVER). Journal of Plant Protection and Pathology, 31(1), 465-471. doi: 10.21608/jppp.2006.235158
H. B. Homam,; M. I. Sheded; H. A. Mohamed. "ESTERASE VARIATION AND ORGANOPHOSPHEROUS RESISTANCE IN corros APHID, Aphis gossypii (GLOVER)". Journal of Plant Protection and Pathology, 31, 1, 2006, 465-471. doi: 10.21608/jppp.2006.235158
Homam,, H., Sheded, M., Mohamed, H. (2006). 'ESTERASE VARIATION AND ORGANOPHOSPHEROUS RESISTANCE IN corros APHID, Aphis gossypii (GLOVER)', Journal of Plant Protection and Pathology, 31(1), pp. 465-471. doi: 10.21608/jppp.2006.235158
Homam,, H., Sheded, M., Mohamed, H. ESTERASE VARIATION AND ORGANOPHOSPHEROUS RESISTANCE IN corros APHID, Aphis gossypii (GLOVER). Journal of Plant Protection and Pathology, 2006; 31(1): 465-471. doi: 10.21608/jppp.2006.235158
ESTERASE VARIATION AND ORGANOPHOSPHEROUS RESISTANCE IN corros APHID, Aphis gossypii (GLOVER)
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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