International Journal of Multidisciplinary Research and Development

International Journal of Multidisciplinary Research and Development


International Journal of Multidisciplinary Research and Development
International Journal of Multidisciplinary Research and Development
Vol. 4, Issue 7 (2017)

Susceptibility of different geographical strains of Culex pipiens (diptera: culicidae) to temephos in grand Tunis area of Tunisia


Ahmed Tabbabi, Jaber Daaboub, Ali Lamari, Raja Ben Cheikh, Ben Jha Ibtissem, Hassen Ben Cheikh

Culex pipiens populations were collected in 5 localities of Grand Tunis area, Northeast Tunisia. Two samples (# 2, and 3) were susceptible to temephos insecticide. The resistant samples displayed RR50 ranged from 1 for the sample # 2 to 213 for the sample # 5. The resistance level was high for sample # 5 (>100-fold), and low, not exceeding 3-fold in the other resistant samples.The temephos resistance could be explained by the AChE 1 insensivity and the increased detoxification by the CYP450. In the samples # 1, and 4 (temephos RR50 <3-fold), the CYP450 were not involved in the temephos resistance and the insensitive AChE 1 could be the mechanism responsible for this resistance. The AChE 1 resistant phenotypes were present in the concerned samples with a frequency ranged from 0.18 to 0.46. For the sample which manifested high temephos resistance level (# 5), the insensitive AChE 1 seems play a role in the resistance, in addition to the major contribution of CYP450.
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How to cite this article:
Ahmed Tabbabi, Jaber Daaboub, Ali Lamari, Raja Ben Cheikh, Ben Jha Ibtissem, Hassen Ben Cheikh. Susceptibility of different geographical strains of Culex pipiens (diptera: culicidae) to temephos in grand Tunis area of Tunisia. International Journal of Multidisciplinary Research and Development, Volume 4, Issue 7, 2017, Pages 327-330
International Journal of Multidisciplinary Research and Development