EVALUATION OF OVIPOSITION INHIBITION Aedes aegypti FROM Piper corcovadensis LEAF EXTRACT

Abstract

The Aedes aegypti mosquito is the vector responsible for transmitting Zika, Dengue, Chikungunya and Yellow Fever diseases. Although they have a common vector, viruses are distinct and diseases are also distinct, as well as their consequences for the population. Integrated mosquito control work is used as a measure to contain its proliferation. Several botanical derivatives have effects on insects, such as insect repellency, oviposition inhibition, developmental changes and mosquito death. Plant extracts have been used as an alternative for the control of disease vector mosquitoes. Brazil is considered the country with the largest plant diversity in the world, with about 55,000 cataloged species. The Piper genus has about 2,000 identified species, besides being of great economic and ecological importance. The species of this genus are used in traditional medicine, presenting a wide variety of bioactive compounds, standing out for their antifungal, insecticidal and antitumor activities. Thus, the present study aimed to obtain Piper corcovadensis leaf extract through maceration technique and to evaluate the deterrent activity of oviposition against Aedes aegypti. Obtaining the extract of P. corcovadensis leaves was conducted by maceration technique using hexane as the solvent. The yield of the obtained extract was 2.78% (2.41g). The classes of compounds found were: Phenylpropanoid, Mono and Sesquiterpene. At a concentration of 50ppm, P. Corcovadensis leaf extract was able to inhibit 78.5% of the oviposition of Aedes aegypti mosquito females, showing a potential to be a good alternative to control mosquito proliferation.