Biological control of mosquito larvae (Diptera; Culicidae) in the Tizi Ouzou region (Algeria)

Author : LOUNACI Zohra, MEKLICHE Dyhia, BELKADI Lynda, KHEMMAR Saada, OUSSAD Nadia, MEDJDOUB-BENSAAD Ferroudja

Abstract :Background and aim: To fight against mosquitoes responsible for nuisance or disease vectors, considerable quantities of chemical insecticides have been used around the world, unfortunately these vectors have developed resistance to the most commonly used insecticides. These means of vector control have harmful effects for humans, animals and the environment. The implementation of new alternative control methods is therefore essential. In this study we we developed an experiment on the use of biopesticides of aqueous extracts of two plants namely Citronella (Cambopogon citratus) and Geranium (Pelargonium graveolens) on the fourth instar larvae of Culex pipiens , a species known to be a nuisance and a transmitter of the West Nile virus under laboratory conditions. Methods: Various concentrations were used 1%, 2%, 3%, 4%, 5% with a total of five replicates for the aqueous extracts over a variable duration of 24,72,48 hours of exposure according to the WHO Protocol.

Keywords :Biological control, Aqueous extracts, Cambopogon citratus, Pelargonium graveolens, Culex pipiens.

Conference Name :International Conference on Ecology (IC-E-25)

Conference Place Toulouse, France

Conference Date 24th Jun 2025