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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional de Colombia
2020
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| Online Access: | https://www.redalyc.org/articulo.oa?id=179964927009 https://www.redalyc.org/journal/1799/179964927009/ https://www.redalyc.org/journal/1799/179964927009/html/ https://www.redalyc.org/journal/1799/179964927009/179964927009.epub https://www.redalyc.org/journal/1799/179964927009/movil |
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Table of Contents:
- Larvicidal activity of ethanolic extract of Azadirachta indica against Aedes aegypti larvae Patricia Manzano Jessica Malusín Ana Barragán Oscar Valmaña García Jenny Villamar María Quijano Rafael Viteri Andrea Orellana-Manzano Agrociencias GC GC MS MS Bio Aedes aegypti is a mosquito that carries dengue virus, yellow fever and other diseases transmitted to humans. Organophosphorus larvicides are used to control the proliferation of this mosquito, which has generated a high degree of resistance; hence, new alternatives such as bio-larvicides formulated with plant extracts are of great interest. The aims of this study were to evaluate the ethanolic extract of Azadirachta indica leaves as a larvicide against Aedes aegypti and to determine the main compounds present in it by GC-MS. In the assay, three concentrations of ethanolic extract were used (10 mg L-1, 20 mg L-1, and 50 mg L-1). This was performed thrice against a positive control (commercial larvicide: spores and endotoxic crystals of Bacillus thuringiensis var. israelensis Serotype H-14) and negative control (water). After 72 h of incubation, it was observed higher larval mortality (93%) in the ethanolic extract at a concentration of 50 mg L-1; the extracts at 10 mg L-1 and 20 mg L-1 shown larval mortality of 47% and 70%, respectively. The majority compound determined by the GC-MS analysis was phytol (14.4% area). The results obtained in this study demonstrated the larvicidal potential of the ethanolic extract of A. indica against larvae of A. aegypti. 2020 artículo científico 0304-2847 https://www.redalyc.org/articulo.oa?id=179964927009 https://www.redalyc.org/journal/1799/179964927009/ https://www.redalyc.org/journal/1799/179964927009/html/ https://www.redalyc.org/journal/1799/179964927009/179964927009.epub https://www.redalyc.org/journal/1799/179964927009/movil 10.15446/rfnam.v73n3.80501 en http://www.redalyc.org/revista.oa?id=1799 Revista Facultad Nacional de Agronomía - Medellín application/pdf Universidad Nacional de Colombia Revista Facultad Nacional de Agronomía - Medellín (Colombia) Num.3 Vol.73