25%甲维·虫酰肼悬浮剂配方的研制及田间药效试验
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摘要
在室内生测验证具有明显增效的基础上,通过对湿润分散剂、防冻剂、消泡剂、增稠剂进行筛选,确定了25%甲维·虫酰肼悬浮剂的较佳配方,并对其稳定性和田间药效进行验证。验证实验结果表明,25%甲维·虫酰肼悬浮剂的各项指标均能达到质量技术标准。田间药效试验结果表明,25%甲维·虫酰肼悬浮剂以有效成分190~220 g/hm2防治甘蓝甜菜夜蛾,防效可达61.31%~83.81%,不低于1%甲氨基阿维菌素苯甲酸盐乳油(2.0 g/hm2)、20%虫酰肼悬浮剂(280 g/hm2)的防效,持效期达14 d。
The formulation and field trail of Emamectin Benzoate·Tebufenozide 25% SC were studied in this paper.According to the laboratory bioassay, there was obvious synergism effects on Spodoptera exigua Hiibner mortality, by means of tests of humectant and dispersantpreparation, antifreezing agent, antifoaming agent and thickening agent,and technology,the formulation of Emamectin Benzoate·Tebufenozide 25% SC was determined. The results of experimental verification of the formulated product demonstrated that all indexes of Emamectin Benzoate·Tebufenozide 25% SC confirmed to the quality technical standards. Field control efficacy of Emamectin Benzoate·Tebufenozide 25% SC(190 g/hm2 to 220 g/hm2)against S. exigua Hiibner in 14 days of application was 61.31%-83.81%, which was superior or similar to the efficacy of Emamectin Benzoate 1% EC(8.1 g/hm2) and Tebufenozide 20% SC(225 g/hm2).
The formulation and field trail of Emamectin Benzoate·Tebufenozide 25% SC were studied in this paper.According to the laboratory bioassay, there was obvious synergism effects on Spodoptera exigua Hiibner mortality, by means of tests of humectant and dispersantpreparation, antifreezing agent, antifoaming agent and thickening agent,and technology,the formulation of Emamectin Benzoate·Tebufenozide 25% SC was determined. The results of experimental verification of the formulated product demonstrated that all indexes of Emamectin Benzoate·Tebufenozide 25% SC confirmed to the quality technical standards. Field control efficacy of Emamectin Benzoate·Tebufenozide 25% SC(190 g/hm2 to 220 g/hm2)against S. exigua Hiibner in 14 days of application was 61.31%-83.81%, which was superior or similar to the efficacy of Emamectin Benzoate 1% EC(8.1 g/hm2) and Tebufenozide 20% SC(225 g/hm2).
引文
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[2]袁永达,王冬生,龄文俊.上海地区甜菜夜蛾的抗药性及防治[J].上海农业学报,2006,2(1):42-45.
[3]兰亦全,赵士熙.甜菜夜蛾抗药性监测及机理[J].福建农林大学学报(自然科学版),2004,33(l):26-2.
[4]贾变桃.甜菜夜蛾的抗药性监测及对虫酞胁的抗性风险研究[D].南京:南京农业大学,2007.
[5]Moulton J K,Pepper D A,Jansson R K,et al.Pro-active management of beet armyworm(Lepidoptera:Noctuidae)resistance to tebufenozide and methoxyfenozide:baseline monitoring,risk assessment,and isolation of resistance[J].J.Econ.Entomol,2002,95(2):414-424.
[6]司升云,周利琳,望勇,等.湖北省甜菜夜蛾田间种群抗药性监测[J].植物保护,2009,35(1):114-117.
[7]侍甜,车午男,吴益东,等.甜菜夜蛾田间种群对甲氨基阿维菌素苯甲酸盐和高效氯氰菊酯的代谢抗性机制[J].应用昆虫学报,2012,49(6):1482-1489.
[8]张宗炳.杀虫药剂的毒力测定-原理方法应用[M].北京:北京科学出版社,1998:1-87.
[9]Tabashinik B E,Cushing N L.Leaf resuide topical bioassays for assessing insecticide resistance in the diamondback moth(Plutella xylostella.L)[J].FAO Plant Protect Bull,1987(35):11-24.
[10]陈年春主编.农药生物测定技术[M].北京农业大学出版社,1998:112-115.
[11]黄国洋.农药试验技术与评价方法[M].北京:中国农业出版社,2000.155-156.
[12]刘明.流悬剂及其加工技术[J].中国化工信息,1987(5):6-13.