Patricia de Souza Pinto Hidalgo¹ , Rita de Cássia Saraiva Nunomura² , Sergio Massayoshi Nunomura³ , Ana Cristina da Silva Pinto⁴ , Wanderli Pedro Tadei⁴

1 Centro Universitário do Norte, Uninorte – Laureate, Brazil
2 Department of Chemistry, Federal University of Amazonas, Manaus, Brazil
3 Coordination of Innovation and Technology, National Institute of Amazonian Research, Manaus, Brazil
4 Malaria and Dengue Laboratory, National Institute of Amazonian Research, Manaus, Brazil
Author    Correspondence author
Journal of Mosquito Research, 2016, Vol. 6, No. 28   doi: 10.5376/jmr.2016.06.0028
Received: 16 Sep., 2016    Accepted: 28 Oct., 2016    Published: 24 Feb., 2017

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Hidalgo P.S.P., Nunomura R.C.S., Nunomura S.M., da Silva Pinto A.C., and Tadei W.P., 2016, Larvicidal activities against Aedes aegypti and Culex quinquefasciatus of some extracts from Amazon edible fruits, Journal of Mosquito Research, 6(28): 1-5 (doi: 10.5376/jmr.2016.06.0028)

The Amazon Forest encompasses a vast diversity of edible fruits, which are very appreciated by the local population. There are few studies describing the chemical composition or the biological activities for most of the Amazonian edible fruits. On the other hand, the Brazilian Amazon region is also endemic area for most of the tropical diseases in the country. One of the most effective control is the vector control at larval stage, especially with botanicals. The larvicidal activities against Aedes aegypti and Culex quinquefasciatus have been determined for the extracts and fractions of five Amazonian edible fruits: pataua (Oenocarpus bataua), bacaba (Oenocarpus bacaba), uxi (Endopleura uchi), tucuma (Astrocaryum aculeatum) and piassava (Leopoldinia piassaba). Lethality assay of extracts and fractions against third-instar Aedes aegypti and Culex quinquefasciatus larvae revealed that at higher concentrations (500 μg.mL^-1), all the extracts caused 100% mortality after 48 h of exposure to larvae Culex quinquefasciatus. The tested extracts and fractions exhibited larvicidal effects against Culex quinquefasciatus with LC₅₀ values between 29.7 and 157.2 μg.mL^-1. The results obtained should be of value in search for new natural larvicidal compounds.

Amazonian fruits; Bacaba; Patuaua; Uxi-amarelo; Piassava