Larvicidal activity of endocarp and seed crude extracts of Dracaena loureiri Gagnep against Aedes aegypti (L.) mosquito

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• 作者：Damrongpan Thongwat¹ ; ² ; ^{damrongpanth@nu.ac.th} ; Supaporn Lamlertthon¹ ; ³ ; Urat Pimolsri¹ ; ³ ; Nophawan Bunchu¹ ; ²
• 关键词：Aedes aegypti ; Dracaena loureiri ; Larvicide ; Plant extracts ; Crude extracts
• 刊名：Asian Pacific Journal of Tropical Biomedicine
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：7
• 期：3
• 页码：222-226
• 全文大小：371 K
• 卷排序：7

文摘

To evaluate the larvicidal activity of the ethanolic and aqueous extracts of the endocarp and seeds of Dracaena loureiri (D. loureiri) against the dengue mosquito vector, Aedes aegypti.MethodsBioassays were performed by exposing late third-stage to early fourth-stage larvae of Aedes aegypti to various concentrations of the extracts from D. loureiri. The larval mortality was observed after 24- and 48-h exposure.ResultsThe larvicidal bioassay in this study demonstrated that the ethanolic endocarp extract was the most effective with the LC50 value of 84.00 mg/L after 24 h exposure and < 50 mg/L after 48 h exposure. Extracts from the other parts of the plant were significantly less effective as a larvicide.ConclusionsThe ethanolic endocarp extract of D. loureiri demonstrated effective larvicidal activity. It is an alternative source for developing a novel larvicide for controlling this mosquito species.