Toxicity and Control Efficacy of Spirotetramat Mixed with Thiamethoxam on Bemisia tabaci and its Security to Ornamental Chrysanthemum Cultivar
-
摘要: 采用滤纸药膜法测定了螺虫乙酯与噻虫嗪混配对菊花烟粉虱的联合毒力,测定共毒系数CTC为122.97~167.43,表现增效作用。据此确定最佳配比,配制成增效混剂40%SC,并研究了其对菊花烟粉虱的毒力和防效及其对观赏菊花安全性,结果表明在推荐有效成分剂量90g a.i.·hm-2、二倍量180g a.i.·hm-2及四倍量360g a.i.·hm-2下对金盏菊、翠菊、万寿菊等3种观赏菊花植株生长无明显异常影响,具有较好的安全性;田间药效良好,其用量60~90g a.i.·hm-2的效果达75.60%~90.67%,优于22.4%螺虫乙酯SC和25%噻虫嗪WG。该增效混剂防治菊花烟粉虱的速效性和持效性皆佳。Abstract: The synergistic toxicity of spirotetramat mixed with thiamethoxam to Bemisia tabaci were measured by insecticide-impregnated filter method,and the results showed that the co-toxicity coefficient(CTC)ranged from122.97 to 167.43,showing the synergistic effect.Based on the result above,40% mixtures of spirotetramat and thiamethoxam SC were made,and its toxicity and control efficacy on B.tabaci and its safety to ornamental chrysanthemum cultivars were studied.The results showed when the active ingredient was 90 g a.i.·hm-2,which was the recommended dose,double dose 180 g a.i.·hm-2,and quadruple dose 360 g a.i.·hm-2,respectively.The mixtures of spirotetramat and thiamethoxam had no significant impact on the growth of three ornamental chrysanthemum cultivars,Calendula officinalis and Callistephus chinensis and Tagetes erecta.So the compound was safe to ornamental chrysanthemum cultivars. After spraying,the control effects of 40% mixtures of spirotetramat and thiamethoxam SC with under 60-90 g a.i.·hm-2 treatment could reach 75.60%-90.67%,which was higher than that of mixtures of 22.4% spirotetramate SC and 25% thiamethoxam WG treatments.Therefore the mixtures were proved to have available and persistent control effect against Bemisia tabaci.
-
Key words:
- chrysanthemum cultivars /
- Bemisia tabaci /
- spirotetramat /
- thiamethoxam /
- safety /
- toxicity /
- control efficacy
-
[1] 吕佩珂,苏慧兰,高振江,等.中国现代蔬菜病虫原色图鉴[M].呼和浩特:远方出版社,2008:342-343. [2] 王瑞明,徐文华,金中时,等.2006年烟粉虱在江苏沿海地区的暴发特点与成因剖析[J].江西农业学报,2007,19(10):60-65. [3] 张春梅,白和盛,陆玉荣,等.保护地蔬菜烟粉虱发生的特点及无公害防治技术研究[J].天津农业科学,2009,15(5):41-43. [4] 邱宝利,任顺祥,孙同兴,等.广州地区烟粉虱寄主植物调查初报[J].华南农业大学学报,2001,22(4):43-47. [5] 罗晨,张君民,石宝才,等.北京地区烟粉虱Bemisia tabaci(Gennadius)调查初报[J].北京农业科学,2000,18(S1):42-47. [6] 汪清香,杜予州,沈嫒,等.扬州地区园林花卉烟粉虱的发生及药剂防治试验[J].广东农业科学,2006,(5):76-79. [7] 向玉勇,任广伟,张帆,等.烟粉虱和温室粉虱的研究进展[J].山东农业生物学报,2004,23(4):352-359. [8] 陈艳华.外来入侵害虫烟粉虱的危害与防治[J].安徽农学通报,2006,12(7):133-134. [9] 孟飞,房明华,陈瑞,等.天丁、金年好防治一品红烟粉虱药效试验[J].杭州农业科技,2006,(1):32-33. [10] 吴秋芳,马瑞霞,王景顺.一品红烟粉虱田间消长规律及药剂防治试验[J].湖北农业科学,2008,47(3):303-304. [11] 程东美,张镇添,玉基立,等.一品红烟粉虱防治药剂筛选及盆栽药效[J].植物保护,2014,40(1):192-195. [12] 陈年春.农药生物测定技术[M].北京:北京农业大学出版社,1990:54. [13] SUN Y P,JOHNNSON E R.Analysis of joint action of pesticides against house files[J].J Econ Entomol,1960,53:887-891. [14] 中华人民共和国农业部.NY/T1965.1-2010农药对作物安全性评价准则[S].北京:中国农业出版社,2011. [15] 国家质量技术监督局.GB/T 17980.16-2000杀虫剂防治温室白粉虱[S].北京:中国标准出版社,2000. [16] 唐启义,冯明光.实用计算机统计分析及其计算机处理平台[M].北京:中国农业出版社,1997:1-407. [17] 农业部农药检定所.农药电子手册[EB/OL].北京:2013.
点击查看大图
计量
- 文章访问数: 256
- HTML全文浏览量: 46
- PDF下载量: 1
- 被引次数: 0