Larvicidal Activity of The Mixture of Cashew Nut Shell Liquid (CNSL) and Aqueous Extract of Sapindus rarak DC Against Larvae of Culex quinquefasciatus
oleh: Rahmi Safarina Fauziah, Sudarsono Sudarsono, Budi Mulyaningsih
| Format: | Article |
|---|---|
| Diterbitkan: | State Islamic University Sunan Kalijaga 2014-04-01 |
Deskripsi
The aim of this study was to evaluate the larvicidal activity of <strong>C</strong>ashew <strong>N</strong>ut <strong>S</strong>hell <strong>L</strong>iquid (CNSL) against the <em>Culex quinque fasciatus</em> in larval stage. The CNSL was diluted in water by addition of aqueous extract of <em>Sapindus rarak </em>DC to increase its solubility. Larvae were exposed to varying concentrations of that mixture. The larvae mortality was observed after 24 h exposure. LC<sub>50</sub> and LC<sub>90</sub> value by extrapolation were 20,52 ppm and 55,41 ppm respectively. CNSL were specified by characterizing its physico-chemical properties and anacardic acid as marker compound by High Performance Chromatography (HPLC). The results were the mixture of Cashew Nut Shell Liquid (CNSL)<strong> </strong>and Aquous extract of S<em>apindus rarak </em>DC had larvicidal activity against <em>Cx. Quinque-fasciatus </em>and further investigations were needed to identify the fatty acid derivative as active compound of CNSL which responsible for larvicidal activity.