Larvicidal effect of Hemidesmus indicus , Gymnema sylvestre , and Eclipta prostrata,/i> against Culex qinquifaciatus mosquito larvae
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It is suggested that all the three plants possess larvicidal properties that could be developed and used as natural insecticides for mosquito control.Abstract:
The larvicidal effect of aqueous extracts of Hemidesmus indicus roots, Gymnema sylvestre and Eclipta prostrata leaves were tested against Culex quinquefasciatus larvae at the concentrations of 1, 2, 3, 4 and 5% up to three days. All extracts showed larval mortality. Larval mortality was 100% with the use of 5% concentration of root extract of H. indicus, leaves extracts of G. sylvestre and E. prostrata after 2 days. Qualitative analysis of the phytochemicals of aqueous extracts revealed the presence of carbohydrates, saponins, phytosterols, phenols, flavonoids and tannins in all the plants. Quantitative analysis showed that the crude saponin was the major phytochemical constituent present in highest percentage followed by crude tannin in all three plants. It is suggested that all the three plants possess larvicidal properties that could be developed and used as natural insecticides for mosquito control.read more
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References
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Phytochemical Studies And Comparative Efficacy Of The Crude Extracts Of Some Haemostatic Plants In Edo And Delta States Of Nigeria
B. O. Obadoni,P. O. Ochuko +1 more
TL;DR: Results from prothrombin timing showed that A. afriana was the most efficacious haemostatic plant followed by L. owariensis, and L. curcas the least.
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Formation of complexes between protein and tannic acid
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Ethnomedicinal plants used by the valaiyan community of piranmalai hills (reserved forest), tamilnadu, india. - a pilot study
TL;DR: A rich and unique profile of phytodiversity ofphytod diversity of the area surveyed is elucidates, with 63 species of medicinal plants belonging to 59 genera and 38 families of these plants used by the Valaiyans in and around Piranmalai Hills, Tamilnadu, South India.
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Toxic and growth retarding effects of three plant extracts on Culex pipiens larvae (Diptera: Culicidae).
TL;DR: The toxic and/or development retarding effects on Culex pipiens mosquito larvae by methanol and ether extracts of Azadirachta indica, Rhazya stricta and Syzygium aromaticum were investigated separately and future application of these extracts to larval habitats may lead to promising results in mosquito management programmes.