Isoxaflutole-resistant soybean is currently in
development for commercialization in North America. Proposals to use
isoxaflutole + metribuzin as the main herbicide tank-mixture raise concerns as
there is limited grass control with these herbicides. Strategies are needed to
improve grass control with isoxaflutole + metribuzin. Nine
experiments were conducted over a two-year period (2017,2018)to determine the efficacy of
isoxaflutole + metribuzin (52.5 + 210 ga·i·ha-1)applied alone andco-applied
with pendimethalin, dimethenamid-P, pethoxamid,
pyroxasulfoneor S-metolachlor applied preemergence (PRE).
Comparisons were made with isoxaflutole + metribuzin at a low rate (52.5 + 210 ga·i·ha-1), medium rate (79 + 315ga·i
References
[1]
Ditschun, S., Soltani, N., Robinson, D.E., Tardiff, F.J., Kaastra, A.C. and Sikkema, P.H. (2016) Control of Glyphosate-Resistant Canada Fleabane (Conyza canadensis (L.) Cronq.) with Isoxaflutole and Metribuzin Tank Mix. Canadian Journal of Plant Science, 96, 72-80. https://doi.org/10.1139/cjps-2015-0121
[2]
Anonymous (2017) Converge? Flexx Herbicide Label. Bayer CropScience Canada Inc. Publication, Pest Control Products Act. Reg. No. 22071, Calgary.
[3]
Knezevic, S.Z., Sikkema, P.H., Tardif, F., Hammill, A.S., Chandler, K. and Swanton, C.J. (1998) Biologically Effective Dose and Selectivity of RPA 201772 for Presemeergence Weed Control in Corn (Zea mays). Weed Technology, 12, 670-676.
https://doi.org/10.1017/S0890037X00044535
[4]
Pallett, K.E., Little, J.P., Sheekey, M. andVeerasekaran, P. (1998) The Mode of Action of Isoxaflutole: Physiological Effects, Metabolism and Selectivity. Pesticide Biochemistry and Physiology, 62, 113-124. https://doi.org/10.1006/pest.1998.2378
[5]
Trebst, A. (2008) The Mode of Action of Triazine Herbicides in Plants. In: LeBaron, H.M., McFarland, J.E. and Burnside, O.C., Eds., The Triazine Herbicides, Elsevier, Amsterdam, 101-110. https://doi.org/10.1016/B978-044451167-6.50011-8
[6]
McWhorter, C.G. and Hartwig, E.E. (1972) Competition of Johnsongrass and Cocklebur with Six Soybean Varieties. Weed Science, 20, 56-59.
https://doi.org/10.1017/S0043174500034949
[7]
Knake, E.L. and Slife, F.W. (1962) Competition of Seteria faberi with Corn and Soybeans. Weeds, 10, 26-29. https://doi.org/10.2307/4040555
[8]
Young, B.G. (2006) Changes in Herbicide Use Patterns and Production Practices Resulting from Glyphosate-Resistant Crops. Weed Technology, 20, 301-307.
https://doi.org/10.1614/WT-04-189.1
Loux, M.M., Doohan, D., Dobbels, A.F., Johnson, W.G., Young, B.G., Legleiter, T.R. and Hager, A. (2015) Weed Control Guide: Ohio State University Extension Publication WS16. Ohio State University, Columbus.
https://www.extension.purdue.edu/extmedia/WS/WS-16-W.pdf
[11]
Yamaji, Y., Honda, H., Hanai, R. and Inoue, J. (2016) Soil and Environmental Factors Affecting the Efficacy of Pyroxasulfone for Weed Control. Journal of Pesticide Science, 41, 1-5. https://doi.org/10.1584/jpestics.D15-047
[12]
Tharp, B.E. andKells, J.J. (2002) Residual Herbicides Used in Combination with Glyphosate and Glufosinate in Corn (Zea mays). Weed Technology, 16, 274-281.
https://doi.org/10.1614/0890-037X(2002)016[0274:RHUICW]2.0.CO;2
[13]
Shapiro, S.S. and Wilk, M.B. (1965) An Analysis of Variance Test for Normality (Complete Samples). Biometrika, 52, 591-611.
https://doi.org/10.1093/biomet/52.3-4.591
[14]
Chomas, A.J. and Kells, J.J. (2004) Triazine-Resistant Common Lambsquarters (Chenopodium album) Control in Corn with Preemergence Herbicides. Weed Technology, 18, 551-554. https://doi.org/10.1614/WT-03-077R
[15]
Nurse, R.E., Sikkema, P.H. and Robinson, D.E. (2011) Weed Control and Sweet Maize (Zea mays L.) Yield as Affected by Pyroxasulfone Dose. Crop Protection, 30, 789-793. https://doi.org/10.1016/j.cropro.2011.03.026
[16]
Soltani, N., Brown, L. and Sikkema, P.H. (2018) Control of Glyphosate-Resistant Common Ragweed in Corn with Pre-Emergence Herbicides. Canadian Journal of Plant Science, 98, 959 962. https://doi.org/10.1139/cjps-2017-0325
[17]
Steele, G.L., Porpiglia, P.J. and Chandler, J.M. (2005) Efficacy of KIH-485 on Texas Panicum (Panicum texanum) and Selected Broadleaf Weeds in Corn. Weed Technology, 19, 866-869. https://doi.org/10.1614/WT-04-229R1.1
[18]
King, S.R. and Garcia, J.O. (2008) Annual Broadleaf Control with KIH-485 in Glyphosate-Resistant Furrow-Irrigated Corn. Weed Technology, 22, 420-424.
https://doi.org/10.1614/WT-07-169.1
[19]
Knezevic, S.Z., Datta, A., Scott, J. and Porpiglia, P.J. (2009) Dose-Response Curves of KIH-485 for Preemergence Weed Control in Corn. Weed Technology, 23, 34-39.
https://doi.org/10.1614/WT-08-097.1
[20]
Janak, T.W. and Grichar, W.J. (2016) Weed Control in Corn (Zea mays L.) as Influenced by Preemergence Herbicides. International Journal of Agronomy, 2016, Article ID: 2607671. https://doi.org/10.1155/2016/2607671
