Vegetable extracts for Aedes aegypti mosquito larva control

Authors

DOI:

https://doi.org/10.24979/bmirr.v15i1.1048

Keywords:

Vector control, Natural products, Larvicidal activity

Abstract

Studies demonstrate the effectiveness of biopesticides in controlling the Aedes aegypti mosquito. In this sense, this study aimed to evaluate the larvicidal effect of extracts of Allamanda cathartica (L.) Apocynaceae (alamanda), Chrysanthemum morifolium (L.) Asteraceae (chrysanthemum) and Cinnamomum verum (L.) Laureaceae (sweet cinnamon) on A. aegypti mosquito larvae. For the production of extracts, dehydrated plant materials (50 g) were extracted with water (1000 ml) by decoction and maceration for five days with ethanol (90%). The freeze-dried aqueous and hydroalcoholic extracts were diluted in deionized water at concentrations of 100, 500 and 1000 μg/ml and introduced into containers (n =3) containing 20 A. aegypti larvae in the third/fourth larval stage. Larvicidal activity was evaluated 72 h after treatments. The aqueous extracts of C. verum at concentrations of 100, 500 and 1000 μg/ml showed an average efficiency of 83.86%. However, the aqueous and hydroalcoholic extracts of C. morifolium showed strong larvicidal activity with 100% efficiency at all concentrations tested. The findings of this study reveal that C. morifolium and C. verum extracts are promising natural larvicides and can help control the mosquito vector of arboviruses such as dengue, yellow fever, Zika and chikungunya

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Published

2023-08-14

How to Cite

Vegetable extracts for Aedes aegypti mosquito larva control. Boletim do Museu Integrado de Roraima (Online), Brasil, v. 15, n. 1, p. 56–69, 2023. DOI: 10.24979/bmirr.v15i1.1048. Disponível em: https://periodicos.uerr.edu.br/index.php/bolmirr/article/view/1048.. Acesso em: 20 may. 2024.

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