4种戊唑醇剂型对大型溞的急性毒性评价
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摘要
为评价不同剂型戊唑醇对大型溞的急性毒性,筛选出环保剂型,减少农药对生态环境的影响。采用半静态法测定95%戊唑醇TC、50%戊唑醇SC、250 g/L戊唑醇EW、80%戊唑醇WP、85%戊唑醇WG对大型溞的急性毒性,并根据我国农药环境安全评价分级标准进行毒性分级。结果表明,95%戊唑醇TC、50%戊唑醇SC、250 g/L戊唑醇EW、80%戊唑醇WP、85%戊唑醇WG对大型溞的EC_(50)值(48 h)分别为8.396、1.374、3.587、5.989、2.067 mg/L,戊唑醇4种剂型产品对大型溞皆为中等毒。
In order to screen out environmental tebuconazole formula, reduce the impact of pesticides on ecological environment, the acute toxicities of tebuconazole 95% TC, tebuconazole 50% SC, tebuconazole 250 g/L EW,tebuconazole 80% WP, tebuconazole 85% WG to Daphnia magna were determined by semi-static toxicity test. The toxicities of tebuconazole formula were classified according to "Test auidelines on environmental safety assessment for chemical pesticides". The results showed that the medium effective concentration(EC_(50), 48 h) of tebuconazole 95% TC,tebuconazole 50% SC, tebuconazole 250 g/L EW, tebuconazole 80% WP, tebuconazole 85% WG to Daphnia magna were8.396, 1.374, 3.587, 5.989, 2.067 mg/L, respectively. Four tebuconazole formula had medium toxicities to Daphnia magna.
In order to screen out environmental tebuconazole formula, reduce the impact of pesticides on ecological environment, the acute toxicities of tebuconazole 95% TC, tebuconazole 50% SC, tebuconazole 250 g/L EW,tebuconazole 80% WP, tebuconazole 85% WG to Daphnia magna were determined by semi-static toxicity test. The toxicities of tebuconazole formula were classified according to "Test auidelines on environmental safety assessment for chemical pesticides". The results showed that the medium effective concentration(EC_(50), 48 h) of tebuconazole 95% TC,tebuconazole 50% SC, tebuconazole 250 g/L EW, tebuconazole 80% WP, tebuconazole 85% WG to Daphnia magna were8.396, 1.374, 3.587, 5.989, 2.067 mg/L, respectively. Four tebuconazole formula had medium toxicities to Daphnia magna.
引文
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[2]Narayanan C R,Pachapurkar R V,Sawant B M.Nimbimin:A New Tetranortriterpenoid[J].Tetrahedron Letters,1967,8(37):3563-3565.
[3]宋光林,廖朝选,黄玉贵,等.戊唑醇对天敌赤眼蜂急性毒性评价[J].贵州科学,2014,32(1):85-87.
[4]池艳艳.六种农药对家蚕慢性毒性的评价标准和辅助生化指标的研究[D].山东泰安:山东农业大学,2015.
[5]赵燕.四种三唑类杀菌剂对花翅摇蚊的生态毒性研究[D].乌鲁木齐:新疆农业大学,2012.
[6]中华人民共和国质量监督检验检疫总局,中国国家标准化管理委员会.GB/T 31270.13-2014化学农药环境安全评价试验准则[S].北京:中国标准出版社,2014.
[7]李俊,陈迎丽,段亚玲,等.戊唑醇对斑马鱼的急性毒性与安全评价[J].贵州科学,2013,31(6):72-74.
[8]龚会琴,杨鸿波,申鹰,等.戊唑醇对2种水生生物的毒性试验研究[J].贵州科学,2014,32(2):74-77.
[9]李祥英,梁慧君,何裕坚,等.5种杀菌剂对3种水生生物的急性毒性与安全性评价[J].广东农业科学,2014,41(16):125-128.
[10]吴声敢,陈丽萍,王彦华,等.4种杀菌剂对水生生物的急性毒性与安全性评价[C]//中国植物保护学会2009学术年会论文集.武汉:中国农业出版社,2009.
[11]华乃震.杀菌剂戊唑醇的剂型与应用[J].农药,2013,52(11):781-786.
[12]王雅东,林庆胜,李祥英,等.3种戊唑醇剂型对斑马鱼的急性毒性评价[J].南方农业学报,2016,47(8):1406-1410.
[13]季静,肖斌,李杨,等.两种不同剂型毒死蜱对四种环境生物的毒性评价[J].农业环境科学学报,2010,29(9):1681-1686.