Efecto repelente del extracto etanólico de Syzygium aromaticum sobre adultos de Aedes agypti cepa Rockefeller en condiciones de laboratorio

Abstract

The purpose of this research was to determine the repellent effect of the ethanolic extract of Syzygium aromaticum on the Aedes aegypti species, which is of high importance in public health worldwide. In order to avoid the use of chemical repellents, alternative natural repellents are investigated, which do not contaminate the environment with the same intensity. To evaluate the repellent effect of Syzygium aromaticum extract, tests were performed on 10 volunteers with different concentrations at 0.1%, 0.5%, 1%, 5%, 10%, 20%, 30% and 40% in search of the dose with which would have repellency times greater than or equal to 2 hours. The extract of Syzygium aromaticum was left in refrigeration for 6 months, this in order to verify if after this time the extract had the same repellency properties. Each volunteer was exposed in an entomological cage to 100 adult females of Aedes aegypti. The extract has repellent properties where it was evidenced that the optimal concentration was 40%, which has a repellent effect of 2 hours without any posture; while the same concentration of the extract, after 6 months had variations in the repellency time.