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.
Publication types
-
Research Support, Non-U.S. Gov't
MeSH terms
-
Aedes / drug effects*
-
Aedes / physiology
-
Animals
-
Cell Line
-
Culex / drug effects*
-
Culex / physiology
-
Fruit / chemistry
-
Insect Repellents / isolation & purification
-
Insect Repellents / toxicity*
-
Insecticides* / isolation & purification
-
Larva / drug effects
-
Magnoliopsida / chemistry*
-
Mosquito Control
-
Oils, Volatile / isolation & purification
-
Oils, Volatile / toxicity*
-
Oviposition / drug effects
-
Ovum / drug effects
-
Ovum / physiology
-
Plant Leaves / chemistry
-
Plant Stems / chemistry
Substances
-
Insect Repellents
-
Insecticides
-
Oils, Volatile
Grants and funding
This work was supported by CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico),
www.cnpq.br, SECT (Secretária de Ciência Tecnologia do estado do Tocantins),
http://www.sedecti.to.gov.br/sedecti/, and CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior),
www.capes.gov.br. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.