Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-23T03:01:57.215Z Has data issue: false hasContentIssue false
  • English
  • Français

Control of Downy Brome (Bromus tectorum) in Winter Wheat (Triticum aestivum) with MON 37500

Published online by Cambridge University Press:  12 June 2017

Robert E. Blackshaw  and
William M. Hamman
Robert E. Blackshaw
Affiliation:
Research Centre, Agriculture and Agri-Food Canada, Lethbridge, AB, Canada T1J 4B1, E-mail: [email protected]
William M. Hamman
Affiliation:
South Prairies Research Farm, Monsanto Canada Inc., Coalhurst, AB, Canada T0L 0V0
Get access Rights & Permissions [Opens in a new window]

Abstract

Field experiments were conducted to determine suitable application timings and rates of MON 37500 for downy brome control in winter wheat. MON 37500 applied preemergence (PRE) or in fall postemergence (POST) provided better control of downy brome than when applied spring POST. MON 37500 at rates ranging from 19 to 33 g ai/ha applied PRE or fall POST controlled downy brome >85%. MON 37500 applied spring POST at 60 g/ha only suppressed growth of downy brome. Winter wheat was not visibly injured and maturity was not delayed by MON 37500 applied up to 60 g/ha at any of the application timings. Winter wheat yield responded positively to all MON 37500 treatments but PRE or fall POST applications usually resulted in greater yields than spring POST applications. Wheat yields progressively increased with increasing rates of MON 37500 up to 30–40 g/ha, above which yields tended to plateau or, in two instances, decline slightly. MON 37500 is an important new herbicide that should enable growers to better manage downy brome in winter wheat production systems.

Keywords

MON 37500, 1-(2-ethylsulfonylimidazo[1,2-a]pyridin-3-ylsulfonyl)-3-(4,6-dimethoxypyrimidin-2-yl)ureadowny brome, Bromus tectorum L. # BROTEwinter wheat, Triticum aestivum L. ‘Norstar,’ ‘Readymade.'Herbicide efficacyherbicide timingsulfonylurea herbicidewheat yieldBROTEPOST, postemergencePRE, preemergence
Type
Research
Information
Weed Technology , Volume 12 , Issue 3 , September 1998 , pp. 421 - 425
Copyright
Copyright © 1998 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

Anonymous. 1997. Crop Protection with Chemicals. Edmonton, AB: Alberta Agriculture, Food, and Rural Development. Agdex 606-1. pp. 204–208.Google Scholar
Ball, D. A. and Walenta, D. L. 1997. Downy Brome Control in Winter Wheat with MON 37500. Portland, OR: Western Society of Weed Science Research Progress Rep. p. 90.Google Scholar
Beyer, E. M., Duffy, M. J., Hay, J. V., and Schlueter, D. D. 1988. Sulfonylurea herbicides. In Kearney, P. C. and Kaufman, D. D., eds. Herbicides: Chemistry, Degradation, and Mode of Action. Volume 3. New York: Marcel Dekker. pp. 118–189.Google Scholar
Blackshaw, R. E. 1993a. Downy brome (Bromus tectorum) control in winter wheat and winter rye. Can. J. Plant Sci. 74:185–191.CrossRefGoogle Scholar
Blackshaw, R. E. 1993b. Downy brome (Drowns tectorum) density and relative time of emergence affects interference in winter wheat (Triticum aestivum). Weed Sci. 41:551–556.CrossRefGoogle Scholar
Blackshaw, R. E. 1994. Differential competitive ability of winter wheat cultivars against downy brome. Agron. J. 86:649–654.CrossRefGoogle Scholar
Dao, T. H. 1987. Crop residues and management of annual grass weeds in continuous no-till wheat (Triticum aestivum). Weed Sci. 35:395–400.CrossRefGoogle Scholar
Douglas, B. J., Thomas, A. G., and Derksen, D. A. 1990. Downy brome (Bromus tectorum) invasion into southwestern Saskatchewan. Can. J. Plant Sci. 70:1143–1151.CrossRefGoogle Scholar
Geier, P. W. and Stahlman, P. W. 1996. Dose-responses of weeds and winter wheat (Triticum aestivum) to MON 37500. Weed Technol. 4:724–730.Google Scholar
Hageman, N. R., Blank, S. E., Cramer, G. L., Isakson, P. J., Ryerson, D. K., and Parrish, S. K. 1996. MON 37500: a new selective herbicide to control annual and perennial weeds in wheat. Proc. West. Soc. Weed Sci. 49:78–82.Google Scholar
Harker, K. N. 1993. Cleavers control with thifensulfuron/tribenuron. Res. Rep., Expert Comm. Weeds (West. Sect.) 1:510–511.Google Scholar
Koscelny, J. A., Cramer, G. L., Blank, S. E., Hageman, N. R., Isakson, P. J., Ryerson, D. K., and Parrish, S. K. 1997. MON 37500: a new selective herbicide to control annual weeds in wheat. Proc. West. Soc. Weed Sci. 50:59.Google Scholar
Massee, T. W. 1976. Downy brome control in dryland winter wheat with stubble-mulch fallow and seeding management. Agron. J. 68:952–955.CrossRefGoogle Scholar
Mead, R. and Curnow, R. N. 1983. Statistical Methods in Agriculture and Experimental Biology. New York: Chapman and Hall. 335 p.CrossRefGoogle Scholar
Morrow, L. A. and Stahlman, P. W. 1984. The history and distribution of downy brome (Bromus tectorum) in North America. Weed Sci. 32(Suppl. 1): 2–6.CrossRefGoogle Scholar
Parrish, S. K., Kaufmann, J. E., Croon, K. A., Ishida, Y., Ohta, K., and Itoh, S. 1995. MON 37500: A New Selective Herbicide to Control Annual and Perennial Weeds in Wheat. Brighton Crop Protection Conference Weeds, Brighton, UK. 5 p.Google Scholar
Rydrych, D. J. 1974. Competition between winter wheat and downy brome. Weed Sci. 22:211–214.CrossRefGoogle Scholar
Rydrych, D. J. and Muzik, T. J. 1968. Downy brome competition and control in dryland wheat. Agron. J. 60:279–280.CrossRefGoogle Scholar
[SAS] Statistical Analysis Systems. 1989. SAS/STAT User's Guide, Version 6, Volume 2, 4th ed. Cary, NC: Statistical Analysis Systems Institute. 846 p.Google Scholar
Shinn, S. L. and Thill, D. C. 1997. Downy Brome Control in Winter Wheat with MON 37500. Portland, OR: Western Society of Weed Science Research Progress Rep. p. 108.Google Scholar
Stahlman, P. W. and El-Hamid, M. A. 1994. Sulfonylurea herbicides suppress downy brome (Bromus tectorum) in winter wheat (Triticum aestivum). Weed Technol. 8:812–818.CrossRefGoogle Scholar
Stahlman, P. W., Geier, P. W., and Northam, F. E. 1996. MON 37500 controls winter annual grass and broadleaf weeds in winter wheat. Proc. West. Soc. Weed Sci. 49:82–83.Google Scholar
Stahlman, P. W. and Miller, S. D. 1990. Downy brome (Bromus tectorum) interference and economic thresholds in winter wheat (Triticum aestivum). Weed Sci. 38:224–228.CrossRefGoogle Scholar
Steel, R.G.D. and Torrie, J. H. 1980. Principles and Procedures of Statistics. New York: McGraw-Hill Book. 633 p.Google Scholar
Upadhyaya, M. K., Turkington, R., and McIlvride, D. 1986. The biology of Canadian weeds. 75. Bromus tectorum L. Can. J. Plant Sci. 66:689–709.CrossRefGoogle Scholar
Wicks, G. A. 1984. Integrated systems for control and management of downy brome (Bromus tectorum) in cropland. Weed Sci. 32(Suppl. 1): 26–31.CrossRefGoogle Scholar