Skip to main content Accessibility help
×
Home

Weed Management in a Glyphosate Resistant Soybean System: Weed Species Shifts

  • Kari L. Hilgenfeld (a1), Alex R. Martin (a1), David A. Mortensen (a2) and Stephen C. Mason (a1)

Abstract

With increased reliance on glyphosate for weed control, weed species composition shifts are likely. Changes in relative abundance could arise from differential tolerance or resistance to, or avoidance of, glyphosate. This study characterized the potential changes in seedbank composition of a mixed population of summer annual weeds due to glyphosate application timing. Seven weeds common in soybean fields in the Midwest were introduced at known densities and treated with glyphosate at several treatment timings. Common lambsquarters, common sunflower, common waterhemp, eastern black nightshade, ivyleaf morningglory, shattercane, and woolly cupgrass were selected to represent a range of emergence patterns and tolerances to glyphosate. Seedling emergence and seed production were monitored. Differences in herbicide tolerance and avoidance, through markedly different weed emergence patterns, were strong contributors to projected changes in weed species composition. Lessened sensitivity to glyphosate allowed some emerged species, such as ivyleaf morningglory, to better survive the herbicide. Late emergence allowed others, such as shattercane and ivyleaf morningglory, to avoid glyphosate applications. Such mechanisms may allow specific species to increase in a continuous glyphosate system.

Copyright

Corresponding author

Corresponding author's E-mail: amartin2@unl.edu

References

Hide All
Aldrich, R. J. 1984. Weed-Crop Ecology Principles in Weed Management. Scituate, MA: Brenton. Pp. 113, 373–398.
Ball, D. A. 1992. Weed seedbank response to tillage, herbicides, and crop rotation sequence. Weed Sci. 40:654659.
Buhler, D. D., Hartzler, R. G., and Forcella, F. 1997a. Implications of weed seedbank dynamics to weed management. Weed Sci. 45:329336.
Buhler, D. D., Hartzler, R. G., Forcella, F., and Gunsolus, J. L. 1997b. Sustainable agriculture: relative emergence sequence for weeds of corn and soybeans. Iowa State University Extension Publication SA-11/April 1997. Pp. 14.
Clayton, G. W., Harker, K. N., O'Donovan, J. T., Baig, M. N., and Kidnie, M. J. 2002. Glyphosate timing and tillage system effects on glyphosate-resistant canola (Brassica napus). Weed Technol. 16:124130.
Culpepper, A. S., York, A. C., Batts, R. B., and Jennings, K. M. 2000. Weed management in glufosinate- and glyphosate-resistant soybean (Glycine max). Weed Technol. 14:7788.
Fenner, M. 1985. Seed Ecology. New York: Chapman Hall. Chapter 4; Pp. 87104.
Hartzler, R. G. 1996. Management of Woolly Cupgrass. Web page: http://www.weeds.iastate.edu. Accessed: March 4, 2004.
Hartzler, R. G. 1997. Managing Waterhemp in Today's Cropping Systems. Web page: http://www.weeds.iastate.edu. Accessed: March 4, 2004.
Hartzler, R. G., Buhler, D. D., and Stoltenberg, D. E. 1999. Emergence characteristics of four annual weed species. Weed Sci. 47:578584.
Hilgenfeld, K. L. 2001. Weed Species Shifts in Glyphosate Resistant Soybean (Glycine max). M.S. dissertation. University of Nebraska, Lincoln, NE.
Hilgenfeld, K. L., Martin, A. R., Mortensen, D. A., and Mason, S. C. 2004. Weed management in glyphosate resistant soybean (Glycine max): weed emergence patterns in relation to glyphosate treatment timing. Weed Technol. 18:172178.
Horak, M. J. 1998. An overview of weed shifts. Proc. N. Cent. Weed Sci. Soc. 53:15.
Hoss, N. E., Al-Khatib, K., Peterson, D. E., and Loughin, T. M. 2003. Efficacy of glyphosate, glufosinate, and imazethapyr on selected weed species. Weed Sci. 51:110117.
Iowa State University Extension. 2000. Weed emergence sequences. Iowa State University Extension Publication. University Extension IPM 64a. P. 1.
Jordan, D. L., York, A. C., Griffin, J. L., Clay, P. A., Vidrine, P. R., and Reynolds, D. B. 1997. Influence of application variables on efficacy of glyphosate. Weed Technol. 11:354362.
Krausz, R. F., Kapusta, G., Matthews, J. L., Baldwin, J. L., and Maschoff, J. 1999. Evaluation of glufosinate-resistant corn (Zea mays) and glufosinate: efficacy on annual weeds. Weed Technol. 13:691696.
Lycan, D. W. and Hart, S. E. 1998. Absorption and translocation of glufosinate, glyphosate, and nicosulfuron in woolly cupgrass and shattercane. Proc. N. Cent. Weed Sci. Soc. 53:93.
Marshall, M. W., Al-Khatib, K., and Maddux, L. 1998. Glyphosate efficacy on ivyleaf morningglory in glyphosate tolerant corn and soybean. Proc. N. Cent. Weed Sci. Soc. 53:5.
Marshall, M. W., Al-Khatib, K., and Maddox, L. 2000. Weed community shifts associated with continuous glyphosate applications in corn and soybean rotation. Proc. West. Soc. Weed Sci. 53:22.
Martin, A. R., Roeth, F. W., Wilson, R. G., Wicks, G. A., Klein, R. N., Lyon, D. J., and Knezevic, S. Z. 2001. 2001 Guide for weed management in Nebraska. Nebraska Cooperative Extension. University of Nebraska Cooperative Extension. EC 01-130-D. Pp. 3842.
National Agricultural Statistics Service. 2001. Crop Acreage. Web page: http://www.usda.gov/nass/pubs/acrobat.htm. Accessed: March 4, 2004.
Norsworthy, J. K., Burgos, N. R., and Oliver, L. R. 2001. Differences in weed tolerance to glyphosate involve different mechanisms. Weed Technol. 15:725731.
Ogg, A. G. Jr. and Dawson, J. H. 1984. Time of emergence of eight weed species. Weed Sci. 32:327335.
Roberts, H. A. and Potter, M. E. 1980. Emergence patterns of weed seedlings in relation to cultivation and rainfall. Weed Res. 20:377386.
Roeth, F. W., Martin, A. R., and Klein, R. N. 1994. Shattercane and its control. NebGuide. University of Nebraska Cooperative Extension. G94-1205-A. 4p.
Stoller, E. W. and Wax, L. M. 1973. Periodicity of germination and emergence of some annual weeds. Weed Sci. 21: 6:574580.
Taylor, S. E. 1996. Effect of Rate and Application Timing of Glyphosate to Control Sicklepod and Other Problem Weeds of the Mississippi Delta. M.S. dissertation. University of Arkansas, Fayetteville, AR. 116 p.
VanGessel, M. J. 2001. Glyphosate-resistant horseweed from Delaware. Weed Sci. 49:703705.
Weakley, C. V. 1987. Weed species shifts related to weed control practices. Proc. Annu. Calif. Weed Conf. 39:203206.
Webster, E. P., Bryant, K. J., and Earnest, L. D. 1999. Weed control and economics in nontransgenic and glyphosate-resistant soybean (Glycine max). Weed Technol. 13:586593.
Wilson, R. G., Jarvi, K. J., Seymour, R. C., Witkowski, J. F., Danielson, S. D., and Wright, R. F. 1992. Annual Weed Growth Across Nebraska. University of Nebraska Agricultural Research Division. Research Bulletin 314-F. 53 p.
Zelaya, I. A. and Owen, M. D. K. 2000. Differential response of common waterhemp (Amaranthus rudis Sauer) to glyphosate in Iowa. Weed Sci. Soc. Am. Abstr. 40:6263.

Keywords

Metrics

Altmetric attention score

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed