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Rev. Soc. Bras. Med. Trop ; 54: e08352020, 2021. graf
Article in English | LILACS | ID: biblio-1288107

ABSTRACT

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.


Subject(s)
Aedes , Celastraceae , Maytenus , Insecticides/pharmacology , Anopheles , Plant Extracts/pharmacology , Plant Leaves , Mosquito Vectors , Larva
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