Abstract

The objective of the mosquito control is to attain the most efficient results as possible, and be consistent with all ecological aspects. Since its discovery, chemical insecticides have represented the most widely method used to control mosquito-borne vectors. However, despite their efficiency, resistance of vector populations against them poses a threat to public health. Their negative effects on nontarget organisms, have led to search other alternative methods, more simple and sustainable for mosquito control. The current study was realized to evaluate the effects of an insect growth disrupter (IGD), ecdysone agonist (methoxyfenozide: RH-2485), against Culex pipiens L. (Diptera: Culicidae) under the laboratory conditions. Lethal concentrations LC50 = 24.54 µg/L and LC90 = 70.79 µg/L, previously determined, were studied for adult female fertility and fecundity after tarsal contact before mating and any blood meal. Methoxyfenozide showed oviposition inhibition activity against Cx. pipiens. Eclosion rate (fertility) was significantly higher in control group than under treatment with methoxyfenozide. Furthermore, Changes in the egg shell morphology were observed. Survey data clearly demonstrated that methoxyfenozide have significant sterilizing activity against medically important vector while minimizing ecotoxicological risks in mosquitoes management.
Kay-words: Mosquitoes, Fecundity, Fertility, Insect growth disruptors, Tarsal contact.

Information

Item Type:	Conference
Divisions:	» Laboratory for Terrestrial and Aquatic Ecosystems » Faculty of Natural Sciences and Life
ePrint ID:	875
Date Deposited:	2017-09-19
Further Information:	Google Scholar
URI:	https://www.univ-soukahras.dz/en/publication/article/875

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