Biologically effective rate of metribuzin for glyphosate-resistant Canada fleabane control in soybean
Author(s) -
Nader Soltani,
Amit J. Jhala,
Christy Shropshire,
Peter H. Sikkema
Publication year - 2017
Publication title -
canadian journal of plant science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.338
H-Index - 59
eISSN - 1918-1833
pISSN - 0008-4220
DOI - 10.1139/cjps-2016-0343
Subject(s) - metribuzin , glyphosate , agronomy , biology , microbiology and biotechnology , weed control
Eight field experiments were conducted during 2013–2015 to determine the dose response of glyphosate-resistant Canada fleabane to preplant metribuzin in a tank mixture with glyphosate in soybean. The predicted metribuzin rates required to achieve 80%, 90%, and 95% visual control of glyphosate-resistant Canada fleabane were 659, 1093, and 1720 g a.i. ha-1 at 4 weeks after application and 783, 1355, and 2237 g a.i. ha-1 at 8 weeks after application, respectively.
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