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International Journal of Mosquito Research
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Vol. 2, Issue 2, Part A (2015)

Synergistic larvicidal potential of Temephos and entomopathogenic fungus, Aspergillus flavus against filarial vector, Culex quinquefaciatus (Say)

Author(s): Sweta Bhan, Lalit Mohan and C.N. Srivastava
Abstract: In the present study, we tested different combinations of Temephos and Aspergillus flavus to observe synergism. Larvicidal activity of Temephos and A. flavus was evaluated separately and also together in different ratios, 1:0.5, 1:1, 1:2 and 1:4 against third instar larvae of Culex quinquefaciatus. The fungal extract showed LC50 13.616, 14.347, and 10.027 ppm after 24, 48 and 72 hrs, respectively. The LC50 values for Temephos were 0.0060, 0.0055 and 0.0042 ppm after 24, 48 and 72 hrs, respectively. In combinatorial bioaasay ratio, 1:2 was observed to be more effective than other tested combinations with LC50 0.0030, 0.0023 and 0.002 ppm after 24, 48 and 72 hrs of exposure period. Thus, the results revealed that the combination of Temephos and A. flavus demonstrated higher larvicidal activities indicating synergistic activity. Apart from raising new possibilities for Culex control it seems to be ideal approach to consider.
Comparative larvicidal potentiality of different ratios of Temephos and <em>A. flavus</em> against <em>Cx. quinquefasciatus</em><strong> (</strong>Lethal Concentration LC<sub>90</sub>)
Fig.: Comparative larvicidal potentiality of different ratios of Temephos and A. flavus against Cx. quinquefasciatus (Lethal Concentration LC90)
Pages: 33-37  |  2154 Views  139 Downloads


International Journal of Mosquito Research
How to cite this article:
Sweta Bhan, Lalit Mohan, C.N. Srivastava. Synergistic larvicidal potential of Temephos and entomopathogenic fungus, Aspergillus flavus against filarial vector, Culex quinquefaciatus (Say). Int J Mosq Res 2015;2(2):33-37.
International Journal of Mosquito Research

International Journal of Mosquito Research

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