EFFECTIVENESS OF MANGROVE PLANT (Rhizophora stylosa) AS NATURAL LARVACIDES OF Aedes aegypti

Ridhayani Adiningsih, Fajar Akbar

Abstract


The number of dengue morbidity in 2013 was 45.85% per 100,000 population (112,511 cases) with a mortality rate of 0.77% or 871 deaths. In 2014 until the beginning of April, dengue morbidity rates were recorded at 5.17% per 100,000 population or 13,031 cases with a mortality rate of 0.84% or 110 deaths. Larvicides are derived from plant extracts Rhizophora mucronata. Some of the active compound contained in Rhizophora mucronata form of alkaloids, saponins, flavonoids and polyphenols. The content of the active compound is known to be an insecticidal substance. The development of alternative insecticides is by killing mosquitoes, especially in the larval stage using natural larvacides, which is expected to reduce the incidence of DHF. This study includes the type of experiment that is testing the effectiveness of the Rhizophora mucronata plant which will be exposed to Aedes aegypti larvae. The research was conducted at the Ministry of Health Polytechnic Building Mamuju, West Sulawesi. The time of this research was May - September 2017. The object of this study was instar III and IV aedes aegypti larvae. Stages of research activities include making Rhizophora mucronata plant extracts, preliminary test stages and research test stages. Data collected in the form of primary data obtained from the calculation of the number of deaths of Aedes aegypti larvae during the study, then processing the data through the stages of Editing, Coding, Entry, and Tabulating. The results showed that the number of larval deaths exposed to the roots of the Rhizophora mucronata plant extract was 63.3%, making it effective in killing Aedes aegypti larvae because of more than 50%. Whereas the flowers, bark, leaves and fruit are not effective because they are less than 50% in killing Aedes aegypti larvae. In subsequent studies, plant parts were used which effectively killed larvae by comparing the concentrations.

Keywords: Aedes aegypti, Botanical Larvacides, Dengue Hemorrhagic Fever (DHF), Rhizophora stylosa


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References


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DOI: https://doi.org/10.32382/uh.v2i1.1826

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