The larvicidal effects of Padina Minor, Sargassum Cristaefolium, and Turninaria Ornata, extracts on Anopheles Flavirostris

Abstract

Three seaweeds, Padina minor, Sargassum cristaefolium, and Turbinaria ornata were tested for their potential larvicidal properties against the Anopheles Sfavirostris mosquito. Results showed that Padina minor and Turbinaria ornata were effective against the Anopheles Sflavirostris larvae at a concentration of 37.5% while Sargassum cristaefolium was effective at a lower concentration of 25%. However, Pearson Correlation Coefficient analysis showed that, unlike Padina minor and Turbinaria ornata, the extract concentration of Sargassum cristaefolium was not the sole cause for the resultant percent mortality. Extraneous factors could have contributed to the increased efficacy of Sargassum cristaefolium. It would be safe to conclude that all three seaweeds have identical larvicidal properties and are as effective as the water-based Baygon insect repellant from a concentration of 37.5% to 100%.