Evaluacion Del Efecto Larvicida Del Extracto Etanolico De Zingiber Officinale (Jengibre) Sobre Larvas De Cuarto Estadio De Aedes Aegypti En Condiciones De Laboratorio

Abstract

In search of solutions and alternatives that do not affect the environment, we intend to find the most effective way to achieve a control of Aedes aegypti (Linnaeus) mosquito reproduction, knowing its importance in public health, since this is the transmitter of diseases such as dengue, yellow fever, chikungunya, zika, among others; where the efficiency of the ethanolic extract of Zingiber officinale (Roscoe) commonly called ginger, as a larvicide in the stage IV larvae of said mosquito was evaluated. The investigation consisted of carrying out bioassays in laboratory conditions, subjecting stage IV larvae of the Aedes aegypti (Linnaeus) mosquito to concentrations of 1000, 2000, 3000, 4000 and 5000 ppm of the ethanol extract of Zingiber officinale (Roscoe). Four repetitions and a control of 25 larvae each were performed, proceeding to readings of 12, 24, 48, 60 and 72 hours, in order to evaluate the mortalities at the different concentrations. The results obtained showed that the extract can be used as a laricide, however, the mortality is not high, because with the highest concentration evaluated (Concentration of 5000 ppm), at the end of 72 hours only 56% mortality is obtained. With this it is concluded that the Zingiber officinale (Roscoe) to be tested as larvicide in laboratory has an average efficiency and to be used in field tests, surely will not perform an efficient control in the reproduction of Aedes aegypti (Linnaeus) and thus same, will not reduce cases of disease because of that mosquito.