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        Characterisation of Neonicotinoid and Pymetrozine Resistance in Strains of Bemisia tabaci (Hemiptera: Aleyrodidae) from China

        Author
        Rao, Qiong
        Xu, Yong-hua
        Luo, Chen
        Zhang, Hong-yu
        Jones, Christopher M.
        Devine, Greg J.
        Gorman, Kevin
        Denholm, Ian
        Attention
        2299/12710
        Abstract
        Four strains of the Q biotype and one of the B biotype of the whitefly Bemisia tabaci collected from China were characterised for resistance to four neonicotinoid insecticides and pymetrozine. Q biotype strains showed moderate to strong resistance to imidacloprid, thiamethoxam and acetamiprid, but little or no cross-resistance to dinotefuron. Resistance to neonicotinoids was consistently associated with resistance to pymetrozine, despite the latter having a distinct (though unresolved) mode of action. The single B biotype strain proved largely susceptible to all the insecticides investigated. Resistance in the Q biotype strains was associated with over-expression of a cytochrome P450 monooxygenase gene, CYP6CM1, whose substrate specificity presumably accounts for the observed cross-resistance profiles.
        Publication date
        2012-02
        Published in
        Journal of Integrative Agriculture
        Published version
        https://doi.org/10.1016/S2095-3119(12)60016-1
        Other links
        http://hdl.handle.net/2299/12710
        Relations
        School of Life and Medical Sciences
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