Efficacy Assessment of 50 g/L Pinoxaden EC for the Control of Phalaris arundinacea in Barley Field  

50g/L唑啉草酯EC防除大麦田虉草效果评价（英文）

作　　者：肖文祥 孟继枝 杨祚斌 刘猛道[2] 马庭矗[3] 梁帝允[4] 杨荣权 张丽娟 高希武[6] 

机构地区：[1]云南省保山市植保植检站,云南保山678000 [2]云南省保山市农业科学研究所,云南保山678000 [3]云南省植保植检站,云南昆明650000 [4]全国农业技术推广中心,北京100000 [5]隆阳区植保植检工作站 [6]中国农业大学,北京100000

出　　处：《Agricultural Science & Technology》2015年第10期2314-2317,共4页农业科学与技术（英文版）

摘　　要：The study aim was to explore the optimal dose and application time of pinoxaden in the control of Phalaris arundinacea in barley field. In the plot experi- ments, four doses （from 900 to 2 400 ml/hm^2） of pinoxaden （50 g/L） EC was ap- plied for the control of P. arundinacea in barley field. The optimal application time of pinoxaden was 3-4 leaf stage of P. arundinacea and 4-5 leaf stage of barley. In this stage of P. arundinacea, the efficacy of four doses was all more than 97%. The 50 g/l pinoxaden exhibited excellent efficacy to P. arundinacea, and the efficacy was better than that of the 69 g/L fenoxaprop-p-ethyl and manual weeding. In 4-5 leaf stage of barley and 3-4 leaf stage of P. arundinacea, when the pinoxaden was applied at the dose from 900 to 1 200 ml/hm^2, the efficacy for controlling P. arundi- nacea could be more than 97%. There was no harmful effect to other arthropods in field, and it was safe to barley. ds为了探索50g/l唑啉草酯防除冬大麦田虉草最佳用量和时期，采用50g/l啉草酯EC（爱秀）900—2400ml／hm^24个用量进行小区试验。防除冬大麦田虉草。结果表明最佳施药时间为虉草3-4叶期．大麦4～5叶期，此时施药防除效果最好．4个用量防效均达到97％以上。50g/L唑啉草酯EC（爱秀）对麦田虉草具有较好的防治效果,显著优于对照药剂69g／L精噁噶唑禾草灵EW（大彪马）及人工除草。在大麦4～5叶期，虉草3-4叶期时施药．当用量达到900～1200ml／hm^2，防效可达到97％以上。50g/L唑啉草酯EC（爱秀）用于冬大麦田虉草防除没有观察到对田间节肢动物的不良影响，对大麦安全，没有产生药害。

关 键 词：Pinoxaden FENOXAPROP-P-ETHYL BARLEY Phalaris arundinacea 

分 类 号：S451.221[农业科学—植物保护]