Journal of Henan Agricultural Sciences ›› 2022, Vol. 51 ›› Issue (6): 103-110.DOI: 10.15933/j.cnki.1004-3268.2022.06.011

• Plant Protection • Previous Articles     Next Articles

Control Effect of the Mixture of Mesosulfuron⁃methyl and Pinoxaden on Aegilops tauschii and Lolium multiflorum in Wheat Field

WU Renhai,XU Hongle,SUN Lanlan,SU Wangcang,WEI Hongmei,XUE Fei,LU Chuantao   

  1. (Institute of Plant Protection,Henan Academy of Agricultural Sciences/Henan Key Laboratory of Crop Pest Control,
    Zhengzhou 450002,China)
  • Received:2022-01-19 Published:2022-06-15 Online:2022-08-16

甲基二磺隆与唑啉草酯混用对麦田节节麦和多花黑麦草的防治效果

吴仁海,徐洪乐,孙兰兰,苏旺苍,魏红梅,薛飞,鲁传涛   

  1. (河南省农业科学院植物保护研究所/河南省农作物病虫害防治重点实验室,河南 郑州 450002)
  • 通讯作者: 鲁传涛(1964-),男,河南开封人,研究员,硕士,主要从事农田病虫草害防治研究。E-mail:chuantaolu@qq.com
  • 作者简介:吴仁海(1976-),男,河南信阳人,研究员,博士,主要从事农田杂草防治研究。E-mail:renhai.wu@163.com
  • 基金资助:
    河南省农业科学院科技创新团队项目(2022TD08);国家自然科学基金河南省联合基金项目(U1804105);河南省农业科学院
    杰出青年科技基金项目(2022JQ04)

Abstract: To develop effective herbicides to control Aegilops tauschii and Lolium multiflorum in wheat fields,the synergistic effect of mesosulfuron⁃methyl mixed with pinoxaden was determined by indoor and field trials.The results of indoor test showed that when mesosulfuron⁃methyl∶pinoxaden was 1∶1,1∶2,1∶3,1∶4,1∶6,the cotoxicity coefficient(CTC) to control Lolium multiflorum was 37.37,189.10,287. 08,259.37,101.80,respectively,indicating that when the ratio of mesosulfuron⁃methyl and pinoxaden was 1∶2—1∶4,it had a significant synergistic effect. When mesosulfuron⁃methyl was mixed with 1,2,4,8 times of pinoxaden,the control effects on A.tauschii were 1.50,1.76,3.66 and 5.65 times of mesosulfuron⁃methyl. When the mixture of mesosulfuron⁃methyl and pinoxaden(1∶4)was at the dosage of(30+120),(60+240),(120+480)g/ha,the inhibition rate on wheat was 10. 28%—34.43%,and the addition of the safener mefenpyr⁃diethyl could restore the growth of wheat to the normal level(spraying water).The control effect on A. tauschii with the mixed treatment of 3% mesosulfuron⁃methyl OD18 g/ha+5% pinoxaden EC 45—67.5 g/ha was 89. 28%—91. 83%,which was significantly higher than that with 3% methyldisulfuron OD 18 g/ha(83.28%).The results of regional test showed that the treatment of 3% mesosulfuron⁃methyl OD 13.5 g/ha+5% pinoxaden EC 54 g/ha generated fresh weight control effect of 99.79% on L.multiflorum and wheat yield increased by 17.43%. Above all,the mixture of mesosulfuron⁃methyl and pinoxaden has a good application prospect in controlling A. tauschii and L.multiflorum.

Key words: Mesosulfuron?methyl, Pinoxaden, Synergistic effect, Aegilops tauschii, Lolium multiflorum, Wheat

摘要: 为了研究麦田恶性杂草多花黑麦草、节节麦的高效防治药剂,通过室内盆栽试验及田间试验评价了甲基二磺隆与唑啉草酯混用的联合效应。室内盆栽试验测定结果表明,甲基二磺隆与唑啉草酯按照1∶1、1∶2、1∶3、1∶4、1∶6比例混用,对多花黑麦草的共毒系数(CTC)分别为37.37、189.10、287.08、259.37、101.80,表明甲基二磺隆与唑啉草酯比例为1∶2~1∶4混用具有显著增效作用。甲基二磺隆与1、2、4、8倍的唑啉草酯混用对节节麦活性分别是甲基二磺隆单用的1.50、1.76、3.66、5.65倍。甲基二磺隆与唑啉草酯1∶4 混用,使用剂量为(30+120)、(60+240)、(120+480)g/hm2 时对小麦鲜质量抑制率为10.28%~34.43%,添加安全剂吡唑解草酯能够将小麦药害缓解至与对照(喷施清水)相当。田间小区试验表明,3%甲基二磺隆OD 18 g/hm2+5%唑啉草酯EC 45~67.5 g/hm2混用对节节麦的防效为89.28%~91.83%,高于3%甲基二磺隆OD 18 g/hm2对节节麦的防效(83.28%)。田间大区试验结果表明,3%甲基二磺隆OD13.5 g/hm2+5%唑啉草酯EC 54 g/hm2处理对多花黑麦草鲜质量防效为99.79%,小麦增产17.43%。以上结果表明,甲基二磺隆与唑啉草酯混用防治节节麦、多花黑麦草具有较好的应用前景。

关键词: 甲基二磺隆, 唑啉草酯, 协同作用, 节节麦, 多花黑麦草, 小麦

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