Phytochemical constituents and larvicidal activity of medicinal plant hydroethanolic extract against mosquito species

Abstract

The aim of this study was to evaluate the effect of the hydro-etnanolic extract of Retama spherocarpa on a species of mosquito Cs longiareolata, the most widespread in the region of Tébessa region. Several aspects were studied: A toxicological aspect represented by the determination of lethal concentrations. The hydro etnanolic extract of Retama spherocarpa showed toxicity to Culiseta longiareolata larvae 3 and 4 larvae of Culiseta longiareolata with a dose-response relationship. A morphometric aspect that is represented by the weight and body volume of newly exuviated Culiseta longiareolata third and fourth instar L3 and L4 larvae. Analysis of the data shows that the hydro-etnanolic extract of Retama spherocarpa affects these parameters. A biochemical aspect was determined by measuring metabolic reserves in newly exuviated third and fourth instar larvae show that these are relatively disturbed by the hydro-etnanolic extract of Retama spherocarpa, and more particularly proteins.