5种常用杀虫剂对方斑东风螺稚螺的急性毒性试验

采用水生生物急性毒性试验方法,检测了福尔马林、硫酸铜、硫酸铜硫酸亚铁合剂（m硫酸铜∶m硫酸亚铁=5∶2）、敌百虫和高锰酸钾5种常用杀虫剂对壳高（1.5±0.2）cm方斑东风螺稚螺的24 h和48 h半致死浓度（LC50）。结果表明：以上5种常用杀虫剂对方斑东风螺稚螺24 h的LC50值依次分别为81.45,34.81,18.17,478.19和89.12 mg·L^-1;5种常用杀虫剂对方斑东风螺稚螺48 h的LC50值依次分别为64.72,5.81,12.68,407.48和43.38 mg·L^-1;安全质量浓度分别为12.21,0.05,1.86,89.23和3.10 mg·L^-1。

Acute Toxicity Test of Five Common Insecticides to Babylonia areolata

In our study,the acute biological toxic tests were performed to determine the semi-lethal concentration（LC50） of five common insecticides,including Formalin,CuSO4,CuSO4：FeSO4（5：2）,Dipterex and KMnO4,to Babylonia areolata when the hatching time was 24 h and 48 h,respectively.The results indicated that LC50（24 h） of Formalin,CuSO4,CuSO4：FeSO4（5：2）,Dipterex and KMnO4 to B.areolata was 81.45 mg·L^-1,34.81 mg·L^-1,18.17 mg·L^-1,478.19 mg·L^-1 and 89.12 mg·L^-1,respectively;LC50（48 h） of the five insecticides was 64.72 mg·L^-1,5.81 mg·L^-1,12.68 mg·L^-1,407.48 mg·L^-1 and 43.38 mg·L^-1,respectively;their safe concentrations were 12.21 mg·L^-1,0.05 mg·L^-1,1.86 mg·L^-1,89.23 mg·L^-1 and 3.10 mg·L^-1,respectively.