3种农药助剂对野生食蚊鱼的急性毒性  

Acute Toxicity of Three Kinds of Pesticide Adjuvant on Gambusia affinis

作　　者：李正[1] 潘波[2] 林勇[2] 姜蕾[2] 刘迎[2] 

机构地区：[1]中国农业科学院农业环境与可持续发展研究所,北京100081 [2]中国热带农业科学院环境与植物保护研究所,海口571101

出　　处：《农药》2013年第5期354-356,359,共4页Agrochemicals

基　　金：科技部农业科技成果转化资金项目(2010GB20260579);中央级公益性科研院所基本科研业务费专项(1630042012010)

摘　　要：[目的]探究新型农药助剂LD-10（授权专利号：200810103519.7）与常用农药助剂NP-10、NP-4对热带水域中非靶标生物的影响。[方法]采用半静态法生物测试,以食蚊鱼为受试生物,研究了这3种农药助剂对水中食蚊鱼的急性毒性。[结果]LD-10在24、48、72、96 h半致死浓度（LC50）分别为28.26、28.26、27.38、26.63 mg/L;NP-10的24、48、72、96 h半致死浓度分别为13.13、11.20、11.11、9.65 mg/L;NP-4在24、48、72、96 h的LC50值均大于10．0mg／L，其对食蚊鱼为低毒物质。[Aims] The impact of the new pesticide adjuvant LD-10（patent license number： 200810103519.7） and commonly used pesticide adjuvant NP-10 and NP-4 on non-target organisms in tropical waters were explored. [Methods] The acute toxicity of LD-10, NP-10 and NP-4 to Gambusia aftinis were studied with the method of semi-static water. [Results] The concentrations of LD-10 that killed 50% of the G. affinis within 24, 48, 72, 96 h LC50 were 28.26, 28.26, 27.38 and 26.63 mg/L, respectively. The concentrations of NP-10 that killed 50% of the G. aftinis within 24, 48, 72, 96 h LC50 were 13.13, 11.20, 11.11 and 9.65 mg/L, respectively. The concentrations of NP-4 that killed 50% of the G. affinis within 24, 48, 72, 96 h LC50 were 2.63, 2.40, 2.05 and 2.05 mg/L, respectively. [Conclusions] The 96 h LC50 for NP-10 and NP-4 were higher than 1 mg/L and lower than 10 mg/L, and they were medium toxicants to G. affinis. The 24 and 96 h LCs0 for LD-10 were higher than 10 mg/L, and it was a low toxicant to G. affinis.

关 键 词：农药助剂 半致死浓度(LC50) 食蚊鱼 毒性 

分 类 号：TQ450.2[化学工程—农药化工]