Insecticidal and Repellent Activity of Siparuna guianensis Aubl. (Negramina) against Aedes aegypti and Culex quinquefasciatus |
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| Authors: | Raimundo Wagner Souza Aguiar Suetonio Fernandes dos Santos Fabricio da Silva Morgado Sergio Donizeti Ascencio Magnólia de Mendon?a Lopes Kelvinson Fernandes Viana Julcemar Didonet Bergmann Morais Ribeiro |
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| Institution: | 1Universidade Federal do Tocantins, Departamento de Biotecnologia, Campus Universitário de Gurupi, Gurupi, Tocantins, Brazil;2Universidade Federal do Tocantins, Campus Universitário de Palmas, Tocantins, Brazil;3Universidade de Brasília, Departamento de Biologia Celular, Campus Universitário, Asa Norte, Brasília, Distrito Federal, Brazil;New Mexico State University, UNITED STATES |
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| Abstract: | This study investigated the toxic effects of essential oils isolated from Siparuna guianensis against Aedes aegypti, Culex quinquefasciatus (eggs, larvae, pupae, and adult) and Aedes albopictus (C6/36) cells. The oviposition-deterring activity, egg viability, and repellence activity in the presence of different essential oils concentrations were determined. The essential oils showed high toxicity to all developmental stages of A. aegypti and C. quinquefasciatus. Furthermore, the oils also showed high repellent activity towards the adult stage of mosquitoes (0.025 to 0.550 μg/cm2 skin conferred 100% repellence up to 120 min) and in contact with cultured insect cells (C6/36) induced death possibly by necrosis. The results presented in this work show the potential of S. guianensis essential oils for the development of an alternative and effective method for the natural control of mosquitoes in homes and urban areas. |
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