农药学学报2017，Vol.19Issue(1)：93-99,7.DOI:10.16801/j.issn.1008-7303.2017.0013
季铵盐和有机硅助剂对啶虫脒杀虫活性及水生生物毒性的影响
Influence of quaternary ammonium and organic silicon adjuvant on insecticidal activity of acetamiprid and environmental toxicity against aquatic organisms
摘要
Abstract
To evaluate combined effects of quaternary ammonium and organic silicon adjuvant to the activity of acetamiprid, their independent and joint toxicities againstAphis citricola von der Goot and two aquatic organisms,Daphnia magna and Brachydanio rerio, were determined following the immersion test for insecticide activity and the additive index method. All the tested surfactants showed obvious synergistic effect on the activity of acetamiprid for the control of A. citricola, among which the maximum synergistic ratio was 210.2 induced by silwet 618. Acetamiprid exhibited low toxicity to D. magna and B. rerio, while all three organic silicon adjuvant and five quaternary ammonium surfactants showed the extremely high toxicities to D. magna. In terms of toxicity to B. rerio, organic silicon adjuvants showed moderate toxicities and quaternary ammonium surfactants exhibited high toxicities. Mixtures of organic silicon adjuvant+acetamiprid exhibited increased combined toxicity for D. magna and B. rerio. However, four of the five quaternary ammonium surfactants except tetradecyl dimethyl benzyl ammonium chloride (1427) were antagonism to two non-target aquatic organisms when combined with acetamiprid. Besides, all the tested surfactants can significantly reduce the surface tension of distilled water (from 74.37 mN/m to 20.50-40.07 mN/m) and increase its maximum retention on leaves (from 1.54 μg/cm2 to 2.39-4.34 μg/cm2). When quaternary ammonium surfactants and organic silicon adjuvant were used as synergists, their toxicity to aquatic organisms should also be emphasized. Among them, quaternary ammonium surfactants were safer to D. magna and B. rerio.关键词
季铵盐助剂/有机硅助剂/啶虫脒/蚜虫/大型溞/斑马鱼Key words
quaternary ammonium surfactants/organic silicon adjuvant/acetamiprid/Aphis citricola/Daphnia magna/Brachydanio rerio分类
农业科技引用本文复制引用
李北兴,李华,张大侠,刘峰,慕卫..季铵盐和有机硅助剂对啶虫脒杀虫活性及水生生物毒性的影响[J].农药学学报,2017,19(1):93-99,7.基金项目
国家重点研发计划 (2016YFD0200500) （2016YFD0200500）
国家自然科学基金 (31572040). （31572040）
