Hostname: page-component-76fb5796d-dfsvx Total loading time: 0 Render date: 2024-04-29T14:22:32.621Z Has data issue: false hasContentIssue false
  • English
  • Français

Weed Control and Crop Injury in Ecofallow Corn (Zea mays) Using Imazethapyr

Published online by Cambridge University Press:  12 June 2017

Gail A. Wicks ,
Garold W. Mahnken  and
Gordon E. Hanson
Gail A. Wicks
Affiliation:
University of Nebraska, Department of Agronomy, North Platte, NE 69101
Garold W. Mahnken
Affiliation:
University of Nebraska, Department of Agronomy, North Platte, NE 69101
Gordon E. Hanson
Affiliation:
University of Nebraska, Department of Agronomy, North Platte, NE 69101
Get access Rights & Permissions [Opens in a new window]

Abstract

Imidazolinone-resistant and -tolerant corn hybrids give growers a new weed control option. Field experiments were conducted in 1993 and 1994 to evaluate imazethapyr for controlling weeds in no-till corn planted into winter wheat stubble in a winter wheat–ecofallow corn rotation. Imidazolinone-tolerant (IT) and imidazolinone-resistant (IR) corn were protected genetically from injury by imazethapyr that was applied preplant, preemergence, or postemergence to ‘Pioneer Brand 3417,’ ‘Pioneer Brand 3417 IR,’ ‘ICI Seeds 8532,’ and ‘ICI Seeds 8532 IT’ hybrids. No difference in corn injury occurred between IR and IT corn. Imazethapyr applied to resistant or tolerant corn hybrids could be used to control weeds in ecofallow corn. Imazethapyr at 35 or 70 g ai/ha controlled triazine-resistant kochia better than the standard herbicide treatment of metolachlor plus cyanazine.

Keywords

Cyanazine, 2-[[4-chloro-6-(ethylamino)-1,3,5-triazin-2-yl]amino]-2-methylpropanenitrileimazethapyr, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acidmetolachlor, 2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamidekochia, Kochia scoparia (L.) Schrad. # KCHSCcorn, Zea mays L.winter wheat, Triticum aestivum L., ‘Arapahoe.'Conservation tillageecofarmingherbicide resistanceno-till plantingCCHPAKCHSCSETVIDAP, days after plantingDBP, days before plantingGDD, growing degree daysIR, imidazolinone-resistantIS, imidazolinone-susceptibleIT, imidazolinone-tolerantPOST, postemergencePR preplantPRE, preemergenceTR, triazine resistant* = significant at P = 0.05 level** = significant at P = 0.01
Type
Research
Information
Weed Technology , Volume 11 , Issue 4 , December 1997 , pp. 748 - 754
Copyright
Copyright © 1997 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

Bauman, T. T., Peregrine, E. K., and White, M. D. 1991, Response of herbicide-tolerant corn to imazaquin and imazethapyr. Proc. North Cent. Weed Sci. Soc. 46:51.Google Scholar
Buhler, D. D. and Proost, R. T. 1992. Influence of application time on bio-activity of imazethapyr in no-tillage soybean (Glycine max). Weed Sci. 40:122–126.CrossRefGoogle Scholar
Carlson, K. L. and Weis, M. E. 1990. Weed control with imazethapyr in imidazolinone tolerant corn. Proc. North. Cent. Weed Sci. 45:33.Google Scholar
Cavers, P. B. and Benoit, D. L. 1989. Seed banks in arable land. In Leck, M. A., Parker, V. T., and Simpson, R. L., eds. Ecology of Soil Seed Banks. San Diego. CA: Academic Press. pp. 209–328.Google Scholar
Crutchfield, D. A., Wicks, G. A., and Burnside, O. C. 1985. Effect of winter wheat (Triticum aestivum) straw mulch on weed control. Weed Sci. 28:46–50.Google Scholar
Currie, R. S. and Regehr, D. L. 1995. Methods of measuring the impact of the XA gene on imazethapyr injury in corn (Zea mays). Weed Technol. 9:676–681.CrossRefGoogle Scholar
DeFelice, M. S., Brown, W. B., Aldrich, R. J., Sims, B. D., Judy, D. T., and Guethle, D. R. 1989. Weed control in soybeans (Glycine max) with reduced rates of postemergence herbicides. Weed Sci. 37:365–374.CrossRefGoogle Scholar
Ghadiri, H., Shea, P. J., and Wicks, G. A. 1984. Interception and retention of atrazine by wheat (Triticum aestivum L.) stubble. Weed Sci. 32:24–27.CrossRefGoogle Scholar
Gunsolus, J. L. and Curran, W. S. 1991. Herbicide Mode of Action and Injury Symptoms. North Central Region Extension Publ. 377. p. 6.Google Scholar
Hall, M. R., Swanton, C. J., and Anderson, G. W. 1992. The critical period of weed control in grain corn (Zea mays). Weed Sci. 40:441–447.CrossRefGoogle Scholar
Hart, R., Lignowski, E., and Taylor, F. 1992. Imazethapyr herbicide. In Shatter, D. L. and O'Connor, S. E., eds. The Imidazolinone Herbicides. Boca Raton, FL: CRC Press. pp. 247–259.Google Scholar
Hart, S. E. and Wax, L. M. 1996. Dicamba antagonizes grass weed control with imazethapyr by reducing foliar absorption. Weed Technol. 10:828–834.CrossRefGoogle Scholar
Johnson, D. H., Jordan, D. L., Johnson, W. G., Talbert, R. E., and Frans, R. E. 1993. Nicosulfuron, primisulfuron, imazethapyr, and DPX-PE350 injury to succeeding crops. Weed Technol. 7:641–644.CrossRefGoogle Scholar
Klingaman, T. E., King, C. A., and Oliver, E. R. 1992. Effect of application rate, weed species, and weed stage of growth on imazethapyr activity Weed Sci. 40:227–232.Google Scholar
Krausz, R. and Kapusta, G. 1993. Imidazolinone resistant and susceptible corn tolerance to CGA-152005, chlorimuron, imazaquin, and imazethapyr. Proc. North Cent. Weed Sci. Soc. 48:38–39.Google Scholar
Krausz, R. F., Kapusta, G., and Matthews, J. E. 1994. Soybean (Glycine max) and rotational crop response to PPI chlorimuron, clomazone, imazaquin, and imazethapyr. Weed Technol. 8:224–230.CrossRefGoogle Scholar
Lueschen, W. E. and Hoverstad, T. R. 1991. Imazethapyr for weed control in no-till soybean (Glycine max). Weed Technol. 5:845–851.CrossRefGoogle Scholar
Meyers, P. F. and Coble, H. D. 1992. Antagonism of graminicide activity on annual grass species by imazethapyr. Weed Technol. 6:333–338.CrossRefGoogle Scholar
Mohr, P. J. and Dickinson, E. B. 1979. Mineral nutrition in maize. In Hafliger, E., ed. Maize. Basel, Switzerland: CIBA-GEIGY. p. 27.Google Scholar
Owen, M.D.K., Lux, J., and Franzenburg, E. 1990. Imazethapyr carryover in corn. Proc. North Cent. Weed Sci. Soc. 45:29–30.Google Scholar
Peterson, B. B., Shea, P. J., and Wicks, G. A. 1988. Acetanilide activity and dissipation as influenced by formulation and wheal stubble. Weed Sci. 36:243–249.CrossRefGoogle Scholar
Ramsel, R. E. and Wicks, G. A. 1988. Use of winter wheat (Triticum aestivum) cultivars and herbicides in aiding weed control in an ecofallow corn (Zea mays) rotation. Weed Sci. 36:394–398.CrossRefGoogle Scholar
Roeth, F. and Martin, A. 1990. Shattercane control and corn cultivar response to imazethapyr. Proc. North Cent. Weed Sci. Soc. 45:28.Google Scholar
Sprague, C. L., Hart, S. E., and Stoller, E. W. 1995. Preemergence broadleaf weed control and crop tolerance in imidazolinone resistant and susceptible corn. Weed Sci. Soc. Am. Abstr. 35:14.Google Scholar
Weimer, M. R., Buhler, D. D., and Wyse, D. L. 1991. Impact of environment on imazethapyr injury to corn. Proc. North Cent. Weed Sci. Soc. 46:43–44.Google Scholar
Wicks, G. A., Mahnken, G. W., and Hanson, G. E. 1996. Weed control in ecofallow corn (Zea mays) with clomazone. Weed Technol. 10:495–501.CrossRefGoogle Scholar
Wicks, G. A., Martin, A. R., and Mahnken, G. W. 1993. Control of triazine-resistant kochia (Kochia scoparia) in conservation tillage corn (Zea mays). Weed Sci. 41:225–231.CrossRefGoogle Scholar
Williams, J. L. and Wicks, G. A. 1978. Weed control problems associated with crop residue systems. In Oschwald, W. R., ed. Crop Residue Management Systems. Madison, WI: American Society of Agronomy. pp. 165–172.Google Scholar