Indoor Efficacy Experiment of 13 Insecticides against Tea Geometrid （Ectropis Oblique Hypulina Wehrli）

• 作者: Lu Zhaocheng Qiao Li Zhao Haiying
• 来源期刊: Plant Diseases and Pests(植物病虫害研究：英文版)
• 学科: 农学
• 关键词: 室内药效试验 防治效果 茶尺蠖 杀虫剂 甲氨基阿维菌素苯甲酸盐 甲氧虫酰肼 现场控制 多杀菌素
• 年，卷（期）: pdapzwbchyj_2013,（6）
• 页码范围: 39-41
• 页数: 3页
• 分类号: S436.3

摘要

[Objective]The paper was to study indoor efficacy of 13 insecticides against tea geometrid(Ectropis Oblique Hypulina Wehrli).[Method]Thirteen insecticides were sprayed onto indoor hydroponic young tea shoots with infesting third instar larvae of tea geometrid reared in the laboratory to simulate the actual condition in the tea garden,and their efficacy was studied.[Result]The control efficacies of 60 g/L spinetoram SC 3 000 times dilution,3% emamectin benzoate ME 15 000 times dilution,240 g/L methoxyfenozide SC 5 000 times dilution and 240 g/L metaflumizone SC 1 500 times dilution were all greater than 91% after spraying for 7d.The control efficacy of 20%tebufenozide SC 1 000 times dilution remained 86.48%.Although the control efficacy of 20%flubendiamide WDG 6 000 times dilution was slightly lower than the above five treatments,the dry weight of faeces was the second least,and its protection effect on leaves was only second to spinetoram.Therefore,60g/L spinetoram SC,3% emamectin benzoate ME,240 g/L methoxyfenozide SC,240 g/L metaflumizone SC,20% tebufenozide SC and 20% flubendiamide WDG were ideal insecticides that could be used rotationally to control tea geometrid in tea garden.The control efficacy of 10% bifenthrin EC 3 000 times dilution was only 23%,so the insecticide was not suitable for control against the pest.[Conclusion]The paper proposed an alternate insecticide for field control against tea geometrid.