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

Autor: Mirilene Mendes Martins, Alyne Cunha Alves Dias, Valdir Alves Facundo, Renato Abreu Lima, Dionatas Ulises de Oliveira Meneguetti, Alexandre de Almeida e Silva
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Revista da Sociedade Brasileira de Medicina Tropical, Vol 54 (2021)
Druh dokumentu: article
ISSN: 1678-9849
0037-8682
DOI: 10.1590/0037-8682-0835-2020
Popis: Abstract 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 LC50 was 11.3 ppm and caused ejection of the larvae intestine; tingenone B LC50 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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