摘要
【目的】为了筛选出对棚室栽培的草莓白粉病具有良好防治效果的药剂,【方法】选用4%四氟醚唑水乳剂、42.4%唑醚·氟酰胺悬浮剂、6%寡糖·链蛋白可湿性粉剂、25%乙嘧酚可湿性粉剂、70%甲基硫菌灵可湿性粉剂、80%多菌灵可湿性粉剂进行田间药剂筛选试验,按照推荐剂量使用农药,连续喷药2次,间隔期7d,在喷药后3、5和7d后分别对草莓叶片和果实进行了防效测定。【结果】通过对草莓白粉病病叶的防效调查,结果表明,四氟醚唑和唑醚·氟酰胺对草莓白粉病防效较好,在施药2次后第7天时防效分别为77.29%和82.78%;通过对草莓白粉病病果防效调查表明,四氟醚唑、唑醚·氟酰胺和阿泰灵防效好于乙嘧酚、甲基硫菌灵和多菌灵。【结论】四氟醚唑和唑醚·氟酰胺对草莓白粉病防效较好,可用于北京地区棚室栽培草莓白粉病的防治;乙嘧酚、甲基硫菌灵和多菌灵对草莓白粉病防效较差,不宜用于北京地区棚室栽培草莓白粉病的防治。
【Objective】In order to screen out the agent with good control effect on strawberry powdery mildew in the greenhouse,【Methods】tetraconazole 4%water emulsion,fluxapyroxad-pyraclostrobin 42.4%suspension concentrate,atailing 6%wettable powder,ethirimol 25%wettable powder,thiophanate-methyl 70%wettable powder and carbendazim 80%wettable powder were used for screening test.The pesticides were sprayed twice at recommended doses with an interval of 7 d.The disease index of strawberry powdery mildew on leaves and fruits were investigated separated after 3,5 and 7 dafter spraying.【Results】Through the investigation of the control effect on diseased leaves,the results showed that tetraconazole and fluxapyroxad-pyraclostrobin had good control efficiency on strawberry powdery mildew,under the conditions of the 7 th day after the second spraying,the effects of tetraconazole and fluxapyroxad-pyraclostrobin on the control of strawberry powdery mildew were 77.29%and 82.78%,respectively.According to the investigation of disease control effect of diseased fruits,tetraconazole,fluxapyroxad-pyraclostrobin and atailing were better than ethirimol,thiophanate-methyl and carbendazim.【Conclusion】Tetraconazole and fluxapyroxad-pyraclostrobin had better control efficiency on strawberry powdery mildew,and can be used for the prevention and treatment of strawberry powdery mildew in the greenhouse in Beijing.Ethirimol,thiophanate-methyl and carbendazim had poor control efficiency on strawberry powdery mildew,and were not recommended for the control of strawberry powdery mildew in the greenhouse in Beijing.
作者
刘士峰
任争光
寇弘儒
王合
张志勇
LIU Shifeng;REN Zhengguang;KOU Hongru;WANG He;ZHANG Zhiyong(Beijng Key Laboratoiy of New Technology in Agricultural Application,Plant Science and Technology College,Beijing University of Agriculture,Beijing 102206,China;Beijing Forestry Protection Station,Beijing 100029,China)
出处
《北京农学院学报》
2019年第4期72-76,共5页
Journal of Beijing University of Agriculture
基金
北京市林保站项目（农药减量技术研究）
关键词
草莓白粉病
防治效果
病情指数
strawberry powdery mildew
control efficiency
disease index
作者简介
第一作者:刘士峰,硕士研究生,研究方向:主要从事农药残留研究工作,E-mail:1904615436@qq.com;通信作者:张志勇,教授,研究方向:主要从事果树有害生物防治研究,E-mail:zzy@bua.edu.cn。
