牛蠓叶提取物对登革热病媒埃及伊蚊的杀幼虫效果研究

Entomon; internationale Zeitschrift fur die gesamte Insektenkunde Pub Date : 2022-12-31 DOI:10.33307/entomon.v47i4.794

S. Kaushik, N. Sharma, Shashank Garg, A. Bansal, T. Thomas

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引用次数: 0

摘要

研究了牛角桉叶提取物对埃及伊蚊晚期3龄幼虫的杀灭作用。用极性溶剂和非极性溶剂(水、乙醇、己烷和丙酮)对干叶粉末进行索氏提取。暴露24h后观察植物提取物的杀虫效果。对照组无死亡。乙醇提取物的毒性最大，LC50为1.923 ppm和8.83 ppm，其次是水提取物(LC50为2.607 ppm和11.903 ppm)、丙酮提取物(LC50为4.1 ppm和16.471 ppm)和己烷提取物(LC50为5.364 ppm和31.759 ppm)。结果表明，该提取物具有显著的杀幼虫活性，可作为一种生态友好型的害虫防治方法。蚊向量。

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Larvicidal effects of Calotropis procera leaf extracts against Aedes aegypti (L), vector of dengue fever

Leaf extracts of Calotropis procera were tested against late third instar larvae of Aedes aegypti mosquito. Soxhlet extraction of the dried leaves powder with polar and non-polar solvents (water, ethanol, hexane and acetone) was carried out. Larvicidal effects of plant extracts were observed after 24h of exposure. The control group showed no mortality. Ethanolic extract was found more toxic with LC50 1.923 ppm and LC90 8.83 ppm followed by aqueous extract (LC50 2.607 ppm and LC90 11.903 ppm), acetone extract (LC50 4.1 ppm and LC90 16.471 ppm) and hexane extract (LC50 5.364 ppm and LC90 31.759 ppm). As the ethanolic extract of C. procera leaves showed significant larvicidal properties, it can be used as an eco-friendly alternative for the control of Ae. aegypti vector.

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来源期刊

Entomon; internationale Zeitschrift fur die gesamte Insektenkunde

CiteScore

0.40

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0.00%

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