Impact of water renewal on the residual effect of larvicides in the control of Aedes aegypti.
Impact of water renewal on the residual effect of larvicides in the control of Aedes aegypti.
复制标题
水更新对杀幼虫剂控制埃及伊蚊残留效果的影响。
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
J. W. Lima
中科院分区：
文献类型：
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作者：
R. J. Pontes;F. F. Dantas Filho;C. Alencar;Ana Cláudia Ferreira Regazzi;L. Cavalcanti;Alberto Novaes Ramos Junior;J. W. Lima
本研究在实验室条件下评价了3种杀幼虫剂在埃及伊蚊体内100天的残留效果。分别测定不补水和每日补水（80%）的幼虫死亡率。双硫磷处理组至第70天死亡率均为100%。在苏云金芽孢杆菌(Bacillus thuringiensis israelensis, Bti)-WDG试验中，前20 d无差异。使用Bti-G，不进行水分更新，死亡率维持在90%以上，可达35 d。第二次试验（换水）后20 d死亡率降至90%以下。更新水源后，所有杀幼虫剂的残留效果均显著降低。
This study was carried out to evaluate the residual effect of three larvicides under laboratory conditions for 100 days in Aedes aegypti. The larval mortality rate was measured without water renewal or with daily water renewal (80%). With temephos, there was 100% mortality in both groups until the 70th day. In the Bacillus thuringiensis israelensis (Bti)-WDG test, there was no difference during the first 20 days. With Bti-G, without water renewal, mortality was sustained above 90% for up to 35 days. The second experiment (with water renewal) reduced the mortality to below 90% after the first 20 days. When renewed water was provided, the residual effect was significantly lower for all larvicides.