Phytochemical Test and Larvicidal Activity of Three Organic Extracts Exits of the Stems of &i&Indigofera pilosa&/i& on Larvae of Mosquitoes

摘要

In the search for alternative method beside the use of dangerous insecticides for health and the environment, the vegetable kingdom offers many possibilities. Work is carried out in this direction and showed a n effectiveness of the extracts of plants. Our results indicate that the chloroformic contents present a better larvicidal activity than the other extracts. In addition, the analysis by Thin Layer Chromatography (TLC) of the three extracts of stems showed their wealth of flavonic compounds before compounds, alkaloids and tannins thus suggesting a correlation between the larvicidal activity and the contents in secondary metabolites of stems.