Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-22T15:38:15.309Z Has data issue: false hasContentIssue false
  • English
  • Français

Weed Control in Soybeans (Glycine max) with Reduced Rates of Postemergence Herbicides

Published online by Cambridge University Press:  12 June 2017

Michael S. Defelice ,
William B. Brown ,
Richard J. Aldrich ,
Barry D. Sims ,
Dan T. Judy  and
David R. Guethle
Michael S. Defelice
Affiliation:
Agron. Dep., Univ. Missouri, Columbia, MO 65211
William B. Brown
Affiliation:
Agron. Dep., Univ. Missouri, Columbia, MO 65211
Richard J. Aldrich
Affiliation:
U.S. Dep. Agric., Agric. Res. Serv., Agron. Dep., Univ. Missouri, Columbia, MO 65211
Barry D. Sims
Affiliation:
Agron. Dep., Univ. Missouri, Delta Center, Portageville, MO 63873
Dan T. Judy
Affiliation:
U.S. Dep. Agric., Agric. Res. Serv., Agron. Dep., Univ. Missouri, Columbia, MO 65211
David R. Guethle
Affiliation:
Agron. Dep., Univ. Missouri, Delta Center, Portageville, MO 63873
Get access Rights & Permissions [Opens in a new window]

Abstract

Field studies were conducted at three sites in Missouri in 1986 and 1987 to evaluate the performance of below-label rates of bentazon, acifluorfen, and chlorimuron tank mixed with sethoxydim and applied to soybeans 7 and 14 days after planting to evaluate broadleaf and grass weed control and weed seed production. Sequential applications of 0.25X-labeled rates of all three broadleaf herbicides tank mixed with 0.5X sethoxydim rates controlled giant foxtail, velvetleaf, and common cocklebur equivalent to one application of standard-labeled rates of the same tank mixes. Single applications of below-labeled rates of the postemergence herbicides did not control weeds, and soybean yields were not equal to sequential 0.25X or single full-rate treatments. A preemergence treatment of clomazone plus imazaquin applied at labeled rates controlled weeds, and soybean yields were equal to a handweeded check in both years at all test locations. Weeds survived and produced seed to reinfest the plots the following year unless nearly 100% control was achieved.

Keywords

Acifluorfen, 5-[2-chloro-4-(trifluoromethyl)phenoxyl]-2-nitrobenzoic acidbentazon, 3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxidechlorimuron, 2- [[[[(4-chloro-6-methoxy-2-pyrimidinyl)amino carbonyl] amino] sulfonyl] benzoic acidclomazone, 2-[(2-chlorophenyl)methyl]-4,4-dimethyl-3-isoxazolidinoneimazaquin, 2- [4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-quinolinecarboxylic acidsethoxydim, 2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-onecommon cocklebur, Xanthium strumarium L. ♯3 XANSTgiant foxtail, Setaria faberii Herrm. ♯ SETFA: soybeans, Glycine max (L.) Merr. ‘Williams 82′velvetleaf, Abutilon theophrasti Medik. ♯ ABUTH.Acifluorfenbentazonchlorimuronclomazoneimazaquinsethoxydimpreemergenceweed seedweed biologyABUTHDIGSAIPOLAPANDISETFAXANST
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 37 , Issue 3 , May 1989 , pp. 365 - 374
Copyright
Copyright © 1989 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. Baldwin, F. L. and Frans, R. E. 1972. Soybean and weed response to dinoseb and chloroxuron applied topically. Weed Sci. 20:511–514.CrossRefGoogle Scholar
2. Baldwin, F. L. and Oliver, L. R. 1985. A reduced rate intensive management soybean weed control program. Proc. South. Weed Sci. Soc. 38:487.Google Scholar
3. Chen, Y. Z. and Penner, D. 1985. Combination effects of acifluorfen with crop oil concentrates and postemergence grass herbicides. Weed Sci. 33:91–95.CrossRefGoogle Scholar
4. Croon, K. A. and Merkle, M. G. 1988. Effects of bentazon, imazaquin, or chlorimuron on haloxyfop or fluazifop-P efficacy. Weed Tech. 2:36–40.CrossRefGoogle Scholar
5. Dexter, A. G. and Nalewaja, J. D. 1986. Interactions among postemergence herbicides. Proc. North Cent. Weed Control Conf. 41:48.Google Scholar
6. Eaton, B. J., Russ, O. G., and Feltner, K. C. 1976. Competition of velvetleaf, prickly sida, and Venice mallow in soybeans. Weed Sci. 24:224–228.CrossRefGoogle Scholar
7. Feldick, T. and Kapusta, G. 1986. Influence of weed size on the efficacy of reduced rates of postemergence-applied acifluorfen, bentazon, imazaquin and DPX-F6025 in soybeans. Proc. North Cent. Weed Control Conf. 41:47.Google Scholar
8. Glenn, S., Hook, B. J., Peregoy, R. S., and Wiepke, T. 1985. Control of velvetleaf (Abutilon theophrasti) and common cocklebur (Xanthium pensylvanicum) in soybeans (Glycine max) with sequential applications of mefluidide and acifluorfen. Weed Sci. 33:244–249.CrossRefGoogle Scholar
9. Godley, J. L. and Kitchen, L. M. 1986. Interaction of acifluorfen with fluazifop for annual grass control. Weed Sci. 34:936–941.CrossRefGoogle Scholar
10. Hagood, E. S. Jr., Bauman, T. T., Williams, J. L. Jr., and Schreiber, M. M. 1980. Growth analysis of soybeans (Glycine max) in competition with velvetleaf (Abutilon theophrasti). Weed Sci. 28:729–734.CrossRefGoogle Scholar
11. Hartzler, R. G. and Foy, C. L. 1983. Compatibility of BAS 9052 OH with acifluorfen and bentazon. Weed Sci. 31:597–599.CrossRefGoogle Scholar
12. Harvey, R. G., Nelson, R. K., and Halstead, S. J. 1986. Timing postemergence herbicides for soybean weed control. Proc. North Cent. Weed Control Conf. 41:44.Google Scholar
13. Hopkins, J. A. and Oliver, L. R. 1986. Intensive soybean herbicide management programs. Proc. South. Weed Sci. Soc. 39:94.Google Scholar
14. Lee, S. D. and Oliver, L. R. 1982. Efficacy of acifluorfen on broadleaf weeds. Times and method of application. Weed Sci. 30:520–526.CrossRefGoogle Scholar
15. Mathis, W. D. and Oliver, L. R. 1980. Control of six morningglory (Ipomoea) species in soybeans (Glycine max). Weed Sci. 28:409–415.CrossRefGoogle Scholar
16. McClelland, M. R., Oliver, L. R., Mathis, W. D., and Frans, R. E. 1978. Responses of six morningglory (Ipomoea) species to bentazon. Weed Sci. 26:459–464.CrossRefGoogle Scholar
17. McWhorter, C. G. and Anderson, J. M. 1976. Bentazon applied postemergence for economical control of common cocklebur in soybeans. Weed Sci. 24:391–396.CrossRefGoogle Scholar
18. Oliver, L. R. 1979. Influence of soybean (Glycine max) planting date on velvetleaf (Abutilon theophrasti) competition. Weed Sci. 27:183–188.CrossRefGoogle Scholar
19. Peters, E. J., Gebhardt, M. R., and Stritzke, J. F. 1965. Interrelations of row spacings, cultivations, and herbicides for weed control in soybeans. Weeds. 13:285–289.CrossRefGoogle Scholar
20. Wax, L. M. and Pendleton, J. W. 1968. Effect of row spacing on weed control in soybeans. Weed Sci. 16:462–465.CrossRefGoogle Scholar
21. Zimdahl, R. L. 1980. Weed-Crop Competition: A Review. Pub. Int. Plant Prot. Ctr., Oregon State Univ., Corvallis, OR.Google Scholar
22. Pesticide assessment of field corn and soybeans: Corn belt states. ERS Staff Report No. AGES850524A. 1985. Nat. Agric. Pestic. Impact Assessment Program. Pesticide Use and Impact Assessment, Extension Service, USDA, Washington, DC 20250.Google Scholar