Preliminary evaluation of the larvicidal activity of extracts and fractions from Ocotea nutans (Nees) Mez against Aedes aegypti
Rev. Soc. Bras. Med. Trop
; Rev. Soc. Bras. Med. Trop;54: e0576-2020, 2021. tab
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ABSTRACT
Abstract INTRODUCTION:
Aedes aegypti is the main vector of dengue and yellow fever. Recently, the use of plant-sourced larvicides has gained momentum.METHODS:
The hydroethanolic extracts and fractions ofOcotea nutansleaves and stems were bioassayed to determine the larvicidal efficacy of these samples.RESULTS:
S-HEX (hexane fraction from the crude stem extract) demonstrated high potential for controlling third-stage larvae, with an LC50 of 14.14 µg.mL-1 (concentration required to inhibit 50% of the treated larvae). CONCLUSIONS Extracts from O. nutans were effective against third-stage larvae ofA. aegyptiafter 24 h of exposure.Palabras clave
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LILACS
Asunto principal:
Aedes
/
Mosquitos Vectores
/
Insecticidas
Límite:
Animals
Idioma:
En
Revista:
Rev. Soc. Bras. Med. Trop
Asunto de la revista:
MEDICINA TROPICAL
Año:
2021
Tipo del documento:
Article