Larvicidal Activity of Leaf Extract From Mauritiella armata (Aceraceae) on Aedes aegypti and Culex quinquefasciatus (Culicidae)

Rosanna Lorrane Francisco dos Reis Matos, Núbia Nunes de Souza, Sandro Morais dos Santos, Aline Ferreira Rafael, Eduardo Robson Duarte, Katchuce Brito Amarante Oliveira, Filipe Vieira Santos de Abreu, Franciellen Morais-Costa, Sônia Ribeiro Arrudas, Islaine Franciely Pinheiro de Azevedo, Yule Roberta Ferreira Nunes, Ana Paula Venuto Moura and Thallyta Maria Vieira

Journal of Agricultural Science, 2024, vol. 14, issue 2, 63

Abstract: The mosquitoes Aedes aegypti and Culex quinquefasciatus (Diptera- Culicidae) are important vectors of several arboviruses, and are relevant public health problems. Conventional control, using chemical larvicides have selected resistant Culicidae populations and caused negative effects on the environment and human health. However, the use of plant extracts has represented a sustainable alternative for insect control. Popularly known as Xiriri, Mauritiella armata (Mart.) Burret (Aceraceae) is an abundant palm tree in Vereda ecosystems and has economic and social importance. In this study, the aim was to evaluate the larvicidal activity of the aqueous extract (AE) leaves of this plant on Ae. aegypti and Cx. quinquefasciatus larvae. The mortalities of larvae were analyzed after treatment with four concentrations of the extract, comparing with a negative control using mineral water. The AE promoted 100% efficacy against Ae. aegypti larvae at 7.9 mg/mL. The lethal concentration to promote 90% mortality of Cx. quinquefasciatus larvae was estimated at 30.57 mg/mL. After chromatographic analyses, flavonoids, catechin and carbohydrates were detected. AE from M. armata leaves presented high larvicidal activity against Ae. aegypti and Cx. quinquefasciatus, and represents a promising alternative to be used in vector control.

Date: 2024
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