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当前位置: 首页 > 文章 > 添加Silwet 408对3%阿维菌素微乳剂药液表面张力和接触角及其对两种害虫作用效果的影响 农药学学报 2015,17 (6) 747-752
Position: Home > Articles > Effects of Silwet 408 on surface tension and contact angle of abamectin 3% microemulsion and its activity against two suck pests on apple tree Chinese Journal of Pesticide Science 2015,17 (6) 747-752

添加Silwet 408对3%阿维菌素微乳剂药液表面张力和接触角及其对两种害虫作用效果的影响

作  者：
庾琴;张润祥;封云涛;刘中芳;李光玉;张鹏九;范仁俊
单  位：
山西省农业科学院植物保护研究所农业有害生物综合治理山西省重点实验室
关键词：
阿维菌素;微乳剂;Silwet 408;表面张力;接触角;苹果红蜘蛛;苹果绣线菊蚜;毒力
摘  要：
通过室内测定和田间防治试验,研究了在3%阿维菌素微乳剂中添加不同量的有机硅表面活性剂Silwet 408后,对药液的表面张力及在苹果叶片上接触角的影响,以及添加助剂后药剂对苹果红蜘蛛Panonychus ulmi和苹果绣线菊蚜Aphis citricola毒力及防效的变化。结果表明:Silwet 408能有效降低3%阿维菌素微乳剂药液的表面张力及其在苹果叶片上的接触角,且在试验添加量(质量分数)3%~10%范围内,表面张力和接触角均随助剂添加量的增加而不断降低。生物测定结果表明:添加Silwet 408可显著提高3%阿维菌素微乳剂对苹果红蜘蛛的毒力及田间防效,但对苹果绣线菊蚜的毒力和田间防效则无明显影响。研究表明,在杀虫剂中添加增效助剂以提高药效时,除了需考察该助剂能否显著降低药液的表面张力及在靶标上的接触角外,害虫种类也是需考虑的因素之一。
译  名：
Effects of Silwet 408 on surface tension and contact angle of abamectin 3% microemulsion and its activity against two suck pests on apple tree
作  者：
Yu Qin;Zhang Runxiang;Feng Yuntao;Liu Zhongfang;Li Guangyu;Zhang Pengjiu;Fan Renjun;Institute of Plant Protection,Shanxi Academy of Agricultural Sciences,Shanxi Key Laboratory of Integrated Pest Management in Agriculture;
关键词：
abamectin;;microemulsion;;Silwet 408;;surface tension;;contact angle;;Panonychus ulmi;;Aphis citricola;;toxicity
摘  要：
The effects of Silwet 408 on surface tension and contact angle of abamectin 3%microemulsion(ME) on apple leaves,as well as that on toxicity of abamectin 3% ME against Panonychus ulmi and Aphis citricola were studied by indoor experiments and field trials. The results showed that adding Silwet 408 could reduce effectively the surface tension and static contact angle of abamectin 3% ME on apple leaves. M oreover,the surface tension and static contact angle decreased gradually as the content of Silwet 408 increased from 3% to 10%. The results of bioassay showed that adding Silwet 408 into abamectin 3% ME could enhance significantly the toxicity and control efficacy to P. ulmi,but not to A. citricola. The results suggested that when adding adjuvant into pesticide for synergistic purpose,the pest species should also be considered besides the surface tension and contact angle.

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