Control of Glyphosate-Resistant Horseweed in Winter Wheat with Pyrasulfotole Premixed with Bromoxynil

被引：8
|
作者：
Mahoney, Kris J. [1 ]
McNaughton, Kristen E. [1 ]
Sikkema, Peter H. [1 ]
机构：
[1] Univ Guelph, Dept Plant Agr, Ridgetown Campus,120 Main St East, Ridgetown, ON N0P 2C0, Canada
来源：
WEED TECHNOLOGY | 2016年 / 30卷 / 01期
关键词：
Glyphosate resistance; integrated weed management; POST herbicides; weed control; CONYZA-CANADENSIS POPULATIONS; WEED MANAGEMENT-PRACTICES; SEED PRODUCTION; CROP-ROTATION; POSTEMERGENCE; TILLAGE; GROWTH; DYNAMICS; EXPOSURE; YIELD;
D O I：
10.1614/WT-D-15-00046.1
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
Five experiments were conducted over a 2-yr period (2013 and 2014) to evaluate POST herbicides in winter wheat fields with a history of glyphosate-resistant (GR) horseweed. Control 4 wk after treatment (WAT) with pyrasulfotole + bromoxynil was 95%. Control 8 WAT with 2,4-D, dicamba + MCPA + mecoprop, clopyralid, and pyrasulfotole + bromoxynil ranged from 89 to 97%; these herbicides also reduced GR horseweed density and biomass by 97 to 99%. Single mode of action herbicides like 2,4-D controlled GR horseweed; however, multiple modes of action should be used to prevent populations from becoming incrementally more resistant under repeated selection pressure.
引用
收藏
页码：291 / 296
页数：6
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