The effect of LC50 granula mixed extracts of Coriandrum sativum L. and Allium sativum on mortality of Larvae of Aedes aegypti L. causing dengue fever

Abstract

Aedes aegypti L. is a type of mosquito that has the potential to be a vector for carrying Dengue Hemorrhagic Fever (DHF). It is necessary to control mosquito vectors with environmentally friendly materials, namely natural larvicides such as coriander (Coriandrum sativum L.) and garlic (Allium sativum). This study aims to determine the LC50 of a mixture of coriander and garlic extract granules on the mortality of Aedes aegypti L. mosquito larvae as a vector for dengue hemorrhagic fever within 48 hours. Extract preparation was carried out using the maceration method with 70% ethanol solvent then evaporated to obtain a thick extract. Granules were made using aerosol and avicel in a ratio of 20%: 20%. Serial preparation of granule concentrations is 10 ppm, 25 ppm, 50 ppm, 75 ppm and 100 ppm. Extract granule testing was carried out by inserting 20 larvae into the extract granule concentration which had been dissolved using distilled water at each predetermined concentration. The results of the research show that the higher the concentration used, the higher the death rate of Aedes aegypti L. larvae with the LC50 probit analysis results being 32.95 ppm with a lower limit of 18.22 ppm and an upper limit of 85.09 ppm. This shows that the mixture of coriander and garlic extracts used is toxic to Aedes aegypti L larvae.