Hostname: page-component-7bb8b95d7b-dvmhs Total loading time: 0 Render date: 2024-09-21T13:15:02.381Z Has data issue: false hasContentIssue false
  • English
  • Français

Regrowth of Quackgrass (Agropyron repens) Following Postemergence Applications of Haloxyfop and Sethoxydim

Published online by Cambridge University Press:  12 June 2017

David E. Stoltenberg  and
Donald L. Wyse
David E. Stoltenberg
Affiliation:
Dep. Agron. and Plant Genetics, Univ. Minnesota, St. Paul, MN 55108
Donald L. Wyse
Affiliation:
Dep. Agron. and Plant Genetics, Univ. Minnesota, St. Paul, MN 55108
Get access Rights & Permissions [Opens in a new window]

Abstract

Previous research has shown that haloxyfop {2-[4-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl] oxy] phenoxy] propanoic acid} and sethoxydim {2-[1-(ethoxyimino)butyl-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one} give less control of quackgrass [Agropyron repens (L.) Beauv. # AGRRE] when applied at the five- to seven-leaf stage compared to the three- to four-leaf stage. Current research indicates that reduced control of quackgrass in the eight-leaf stage, compared to the four-leaf stage, was not due to reduced herbicide retention on leaves or to changes in residual herbicide activity in the soil following postemergence applications. The efficacy of both herbicides on rhizome bud kill did not change between the four- and eight-leaf stages following application to the foliage. However, the efficacy of both herbicides on crown tissue bud viability was less at the eight-leaf stage. Rhizome sink intensity (the capacity to accumulate radiolabel) was similar at both stages of development following 14C-haloxyfop and 14C-sethoxydim application to either upper or lower leaves. Crown tissue sink intensity was significantly less at the eight-leaf stage compared to the four-leaf stage following 14C-sethoxydim application to either upper or lower leaves and following 14C-haloxyfop application to lower leaves. These data suggest that crown bud regrowth contributes substantially to reduced control of quackgrass in advanced stages of growth following applications of haloxyfop and sethoxydim.

Keywords

Absorptionretention14C-sethoxydim14C-haloxyfoptranslocationAGRRE
Type
Physiology, Chemistry, and Biochemistry
Information
Weed Science , Volume 34 , Issue 5 , September 1986 , pp. 664 - 668
Copyright
Copyright © 1986 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

1. Boldt, P. F. and Putnam, A. R. 1981. Selectivity mechanisms for foliar application of diclofop-methyl. I. Retention, absorption, and volatility. Weed Sci. 28:474–477.CrossRefGoogle Scholar
2. Buhler, D. D. and Burnside, O. C. 1984. Herbicidal activity of fluazifop-butyl, haloxyfop-methyl, and sethoxydim in soil. Weed Sci. 32:824–831.CrossRefGoogle Scholar
3. Davidson, C. G., Wyse, D. L., and McGraw, R. L. 1985. Quackgrass (Agropyron repens) control and establishment of three forage legumes with three selective herbicides. Weed Sci. 33:376–380.Google Scholar
4. Derr, J. F., Monaco, T. J., and Sheets, T. J. 1985. Uptake and translocation of fluazifop by three annual grasses. Weed Sci. 33:612–617.Google Scholar
5. Ehr, R. J. and Gerwick, B. C. 1984. Properties influencing soil residual activity of the new postemergence grass herbicides. Proc. North Cent. Weed Control Conf. 39:82.Google Scholar
6. Heindl, J. C. and Brun, W. A. 1983. Light and shade effects on abscission and 14C-photoassimilate partitioning among reproductive structures in soybean. Plant Physiol. 73:434–439.CrossRefGoogle ScholarPubMed
7. Kells, J. J., Meggitt, W. F., and Penner, D. 1984. Absorption, translocation, and activity of fluazifop-butyl as influenced by plant growth stage and environment. Weed Sci. 32:143–149.CrossRefGoogle Scholar
8. Rick, S. K., Slife, F. W., and Banwart, W. L. 1983. Residual activity of selective grass herbicides. Proc. North Cent. Weed Control Conf. 38:1.Google Scholar
9. Velovitch, J. J. and Burroughs, F. G. 1984. Preemergence weed control in soybeans with haloxyfop-methyl. Proc. North Cent. Weed Control Conf. 39:24–25.Google Scholar
10. Waldecker, M. A. and Wyse, D. L. 1984. Quackgrass (Agropyron repens) control in soybeans (Glycine max) with BAS-9052-OH, KK-80, and RO-13-8895. Weed Sci. 32:67–75.CrossRefGoogle Scholar
11. Werner, P. A. and Rioux, R. 1977. The biology of Canadian weeds. 24. Agropyron repens (L.) Beauv. Can. J. Plant Sci. 57:905–919.Google Scholar
12. Wyse, D. L. and Spitzmueller, J. 1984. Quackgrass control in soybeans with sethoxydim, fluazifop, and haloxyfop – a three year summary. Proc. North Cent. Weed Control Conf. 39:28.Google Scholar