| 氟噻唑吡乙酮对马铃薯晚疫病最低有效防控剂量的研究 |
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| 引用本文： | 张建平,张福金,王振,哈斯,张欣昕.氟噻唑吡乙酮对马铃薯晚疫病最低有效防控剂量的研究[J].农药学学报,2020,22(3):556-560. |
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| 作者姓名： | 张建平 张福金 王振 哈斯 张欣昕 |
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| 作者单位： | 内蒙古农牧业科学院植物保护研究所,呼和浩特 010031;内蒙古农牧业科学院资源环境与检测技术研究所,呼和浩特 010031;内蒙古农业大学农学院,呼和浩特 010019 |
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| 基金项目： | 国家重点研发计划 (2016YFD0200203) |
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| 摘 要： | 由真菌致病疫霉Phytophthora infestans (Mont.) de Bary引起的晚疫病是马铃薯的毁灭性病害。为使新型优异杀菌剂10%氟噻唑吡乙酮可分散油悬浮剂发挥更好的作用，于2018—2019年开展了该药剂防治马铃薯晚疫病的最低有效防控剂量 (防治效果等于大于80%对应的施药剂量) 田间试验。结果表明:10%氟噻唑吡乙酮可分散油悬浮剂按有效成分9.75~14.6 g/hm2处理，于第二次施药后14 d防治效果达80%以上，此剂量即为最低有效防控剂量，比农药登记推荐低剂量少用药50.0%~25.0%。结果可为农药减施和精准施药提供依据。
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| 关 键 词： | 杀菌剂 氟噻唑吡乙酮 最低有效防控剂量 马铃薯 晚疫病 |
| 收稿时间： | 2019-03-13 |
Minimum effective dosage of oxathiapiprolin for the control of potato late blight |
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| Institution: | 1.Plant Protection Institute, Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot 010031, China2.Institute of Resources Environment and Detection Technology, Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot 010031, China3.Agronomy College, Inner Mongolia Agricultural University, Hohhot 010019, China |
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| Abstract: | Potato late blight caused by the fungus of Phytophthora infestans ( Mont.) de Bary was a worldwide destructive disease in crop of potato (Solanum tuberosum L.). In order to make a better use of 10% oxathiapiprolin OD, in 2018-2019, field experiments were conducted to determine the minimum effective control dosage (the dosage whose control effect equated to or was higher than 80%) for the control of potato late blight. The results indicated that the control effect by the treatment dosage of 9.75-14.6 a.i.g/hm2 was more than 8.0% at the 14th days after second spray. This dosage was the minimum effective control value, which was 50.0%-25.0% lower than that recommended by pesticide registration. Its work could provide basis for the reduction and accurate application of the pesticide. |
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