Larvicidal activity of Maytenus guianensis (Celastraceae) against Aedes aegypti (Diptera: Culicidae)

INTRODUCTION: Bioprospection of plant products is used to discover new insecticides. METHODS: The larvicidal activity of ethanolic extract and triterpene (tingenone B) from the bark of Maytenus guianensis and their effect on pupation and emergence were evaluated against Aedes aegypti. RESULTS: Crude...

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Detalles Bibliográficos
Autores principales: Martins, Mirilene Mendes, Dias, Alyne Cunha Alves, Facundo, Valdir Alves, Lima, Renato Abreu, Meneguetti, Dionatas Ulises de Oliveira, Silva, Alexandre de Almeida e
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Sociedade Brasileira de Medicina Tropical - SBMT 2021
Materias:
Short Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8047713/
https://www.ncbi.nlm.nih.gov/pubmed/33886820
http://dx.doi.org/10.1590/0037-8682-0835-2020
Descripción
Sumario:INTRODUCTION: Bioprospection of plant products is used to discover new insecticides. METHODS: The larvicidal activity of ethanolic extract and triterpene (tingenone B) from the bark of Maytenus guianensis and their effect on pupation and emergence were evaluated against Aedes aegypti. RESULTS: Crude extract LC(50) was 11.3 ppm and caused ejection of the larvae intestine; tingenone B LC(50) was 14.8 ppm. Pupation was reduced by 20% and 10%, respectively; however, the emergence was not affected. CONCLUSIONS: The crude bark extract exhibited a higher larvicidal effect against the vector.

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