Larvicidal activity of vegetable oils against Aedes aegypti larvae

Aedes aegypti L. is the mosquito vector of yellow fever, dengue, zika, and chikungunya viruses. The prevention control such diseases usually rely on use chemicals, that can cause harm to human health environment. Vegetable oils with larvicidal activity are used as an alternative tool this insect. This study aimed evaluate vegetable from Caryocar coriaceum, Mauritia fIexuosa, Carapa guianensis, Copaifera langsdorffii, Ricinus communis Cocos nucifera against A. larvae. experiment was divided into two bioassays. In first, a completely randomized design seven treatments (six at 500 ppm one four replications). number dead larvae evaluated 24, 48, 72, 96, 120 h after exposure. second bioassay, most efficient first bioassay (C. coriaceum M. flexuosa) were concentrations 0, 500, 1000, 1500, 2000, 2500 ppm, replications. according bioassay. All had third instar stage aegypti, greater efficiency C. flexuosa best efficacy in control. LD10, LD50, LD90 oil recommended for controlling 234, 648, 1794 respectively.