评价雪莲（Falc.）的根和叶提取物对三种蚊媒：致倦库蚊、埃及伊蚊和白纹伊蚊的杀幼虫活性。
Evaluation of the larvicidal potential of root and leaf extracts of Saussurea costus (Falc.) Lipsch. against three mosquito vectors:Anopheles stephensi, Aedes aegypti, and Culex quinquefasciatus.
机构信息
Department of Botany, Annamalai University, Annamalainagar - 608 002, Tamil Nadu, India.
出版信息
Rev Soc Bras Med Trop. 2020 Mar 16;53:e20190018. doi: 10.1590/0037-8682-0018-2019. eCollection 2020.
INTRODUCTION
The larvicidal potential of Saussurea costus (Falc.) Lipsch. was studied against the early 4th instar larvae of Anopheles stephensi Liston., Aedes aegypti Linn.,and Culex quinquefasciatus Say. because of the emergence of mosquito resistance to conventional synthetic insecticides.
METHODS
At concentrations of 12.5-200 ppm, larvicidal activities were studied under laboratory conditions.
RESULTS
After 24 h of exposure, the methanol extract of the roots recorded the highest larvicidal activity against An. stephensi, with LC50 and LC90values of 7.96 and 34.39 ppm, respectively.
CONCLUSIONS
We are developing potent larvicidal compound(s) from S. costus for controlling the mosquito larval population.
简介
由于蚊子对传统合成杀虫剂产生了抗药性，因此研究了雪莲花（Falc.）Lipsch. 的杀幼虫潜力，以对抗按蚊斯蒂芬斯利斯顿的早期第 4 龄幼虫、埃及伊蚊林奈和库蚊五分法。
方法
在 12.5-200 ppm 的浓度下，在实验室条件下研究了杀幼虫活性。
结果
暴露 24 小时后，根的甲醇提取物对按蚊表现出最高的杀幼虫活性，LC50 和 LC90 值分别为 7.96 和 34.39 ppm。
结论
我们正在从雪莲花中开发有效的杀幼虫化合物，以控制蚊虫幼虫种群。
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