Abstract

PEREIRA, Álvaro Itaúna Schalcher et al. Antimicrobial activity in fighting mosquito larvae Aedes aegypti: Homogenization of essential oils of linalool and eugenol. Educ. quím [online]. 2014, vol.25, n.4, pp.446-449. ISSN 0187-893X.

In the search for alternative chemical control against Aedes aegypti L., various studies are developed and encouraged in order to find new substances insecticidal plant and in this context essential oils have been shown to be very promising. Extracted from the essential oils of Lindl Pimenta dioica species (leaves) and Aniba duckei Kostermans (stems) by means of hydrodistillation using a Clevenger system and promoted its mixture of equal parts. In this study, the larvicidal effect of the mixture of essential oils extracted from leaves of Pimenta dioica species Lindl and branches of Aniba duckei Kostermans were evaluated against the mosquito Aedes aegypti (Linnaeus, 1792). The larvicidal activity was observed based on the percentage of dead larvae, the action was assessed 24 h after treatment. The blend of essential oils had larvicidal activity with LC₅₀ of 113,95 (±2.11) μg mL^-1 and the patterns of eugenol 90,86 (±0,03) μg mL^-1 and linalool 305,42 (±0,03) μg mL^-1. The results indicate that the mixture of essential oils evaluated, is composed of substances that together with the major components eugenol and linalool provided greater larvicidal effect against the mosquito Aedes aegypti L.

Keywords : Aedes aegypti; Aniba duckei Kostermans; pimenta dioica; eugenol; linalol; larvicida lactivity.