7种拟除虫菊酯农药对卤虫的急性毒性研究Acute Toxicity of Seven Pyrethroid Insecticides to Brine Shrimp Artemia
刘永;汪小月;邱立红;李学锋;王成菊;
摘要(Abstract)：
为了研究7种拟除虫菊酯农药对美国大盐湖卤虫(GSL Artemia)的急性毒性效应,挑选18~24 h内孵出的卤虫,继续培养24 h后得到Ⅱ~Ⅲ龄卤虫无节幼体,将其暴露于所设浓度梯度的拟除虫菊酯溶液中进行24 h急性毒性实验,记录卤虫无节幼体在各浓度溶液中的死亡情况,并将所得数据进行Probit分析。结果表明,卤虫对不同拟除虫菊酯的敏感性相差较大。氯菊酯、氯烯炔菊酯、炔咪菊酯、胺菊酯、联苯菊酯、高效氯氟氰菊酯和溴氰菊酯对卤虫的24 h半致死浓度(24 h-LC50)分别为4.68、14.82、18.12、38.21、>100、>100和>100 mg.L-1。因此,在含有卤虫的盐水环境中,应尽量避免使用毒性较高的氯菊酯,而选择使用联苯菊酯、高效氯氟氰菊酯和溴氰菊酯等毒性较低的农药。
关键词(KeyWords)： 卤虫;拟除虫菊酯;农药
基金项目(Foundation): 公益性行业(农业)科研专项(No.20090354-02)
作者(Author): 刘永;汪小月;邱立红;李学锋;王成菊;
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