ESTERASE VARIATION AND ORGANOPHOSPHEROUS RESISTANCE IN COTTON APHID, Aphis gossypii (GLOVER)

Abstract: Cotton aphid, Aphis gossypii (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 (α-naphthyl acetate, Indoxyl acetate, Lurate actate, Myristate acetate and Acetylthiocholine iodide) were screened. The results showed that, esterase activity, measured by using α-naphthyl acetate and Indoxyl 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.
Publication year 2006
Organization Name
City المنصورة
serial title مجله جامعه المنصورة للعلوم الزراعية
ISSN 1110-0346
Author(s) from ARC
Agris Categories Pests of plants
AGROVOC
TERMS		 Aphidoidea. Aphis gossypii. Cotton.
Publication Type Journal
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