17 R. C. Torres A. G. Garbo R. Z. M. L. Walde Journal of Animal and Plant Sciences JAPS 20152015/08/01 25 4 1187-1190 1018-7081 NA <p>This study was conducted to investigate the effect of the ethanol and hexane extracts of the fruit wastes of&nbsp;<em>Garcnia mangostana&nbsp;</em>(mangosteen) on the Dengue vector&nbsp;<em>Aedes aegypti.</em>The fruit wastes (pericarp, crown and seeds) were solvent extracted separately. The larvicidal activity of the extracts was tested against the 3rd and 4th instars larvae of the&nbsp;<em>Aedes aegypti</em>&nbsp;following the World Health Organization bioassay method (2005). Characterization of the extracts was conducted by qualitative phytochemical screening. The ethanol pericarp extract of&nbsp;<em>G. mangostana&nbsp;</em>exhibited the highest toxicity among the other parts (crown and seeds) against&nbsp;<em>A. aegypti</em>&nbsp;larvae with an LC50 values of 4.84 mg/L and 6.19 mg/L and LC90 values of 14.55 mg/L and 28.71 mg/L while the hexane extract yielded an LC50 and LC90 of 27.61 mg/L and 67.27 mg/L, respectively. The hexane crown extract also yielded larvicidal activity with an LC50 and LC90 of 25.33 mg/L and 63.73 mg/L, respectively while the ethanol extract gave an LC50 of 63.00 mg/L and LC90 of 169.91 mg/L. Meanwhile, both ethanol and hexane extracts of the seeds did not exhibit any toxic effect up to 500 mg/L and 300 mg/L, respectively. Results suggest the potential of&nbsp;<em>G. mangostana&nbsp;</em>fruit wastes as a key source for the development of environment-friendly plant-based larvicides.</p> Garcinia mangostana, dengue vector, Aedes aegypti, larvicidal activity, phytochemical screening Pakistan Agricultural Scientists Forum https://thejaps.org.pk/AbstractView.aspx?mid=2015-JAPS-159