Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-27T01:27:54.272Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of Postemergence Application Rate and Timing of Mesotrione on Corn (Zea mays) Response and Weed Control

Published online by Cambridge University Press:  20 January 2017

Bradley C. Johnson ,
Bryan G. Young  and
Joseph L. Matthews
Bradley C. Johnson
Affiliation:
Department of Plant, Soil and General Agriculture, Southern Illinois University, Carbondale, IL 62901-4415
Bryan G. Young*
Affiliation:
Department of Plant, Soil and General Agriculture, Southern Illinois University, Carbondale, IL 62901-4415
Joseph L. Matthews
Affiliation:
Department of Plant, Soil and General Agriculture, Southern Illinois University, Carbondale, IL 62901-4415
*
Corresponding author's E-mail: [email protected].
Get access Rights & Permissions [Opens in a new window]

Abstract

Field experiments were conducted in 1999 and 2000 to determine the influence of mesotrione postemergence application rate, application timing, and addition of atrazine on corn injury, weed control, and corn grain yield. Corn injury in the form of leaf bleaching ranged from 0 to 15% at 7 d after treatment (DAT). In general, most of the bleaching injury rapidly dissipated with slight (≤ 8%) to no corn injury observed at 28 DAT. Control of common cocklebur with mesotrione at 14 DAT ranged from 79 to 98% for all treatments over both years. Applying mesotrione at 140 g/ha, at the early postemergence (EPOST) timing, or in combination with atrazine provided the greatest control of common cocklebur at 14 DAT. Application rate of mesotrione was the only factor that was significant in both years for control of common cocklebur later in the season at 56 DAT. Control of ivyleaf morningglory with mesostrione at 14 DAT ranged from 60 to 90% for all treatments in both years. Control of ivyleaf morningglory at 14 DAT was enhanced by the addition of atrazine to mesotrione. Control of ivyleaf morningglory at 56 DAT was greater with mid-postemergence and late postemergence than with EPOST applications, and was generally enhanced by the addition of atrazine. Yellow nutsedge control with mesotrione was inconsistent, ranging from 40 to 87% at 14 DAT for all treatments over both years. The addition of atrazine to mesotrione increased yellow nutsedge control from 47 to 87% at 14 DAT in 2000. Increasing the rate of mesotrione from 70 to 140 g/ha, as well as the addition of atrazine, improved control of yellow nutsedge at 56 DAT. Corn grain yield was not affected by corn injury or weed control as there were no significant differences in grain yield between herbicide-treated plots and handweeded plots.

Keywords

Atrazinemesotrionecommon cocklebur, Xanthium strumarium L. #3 XANSTivyleaf morningglory, Ipomoea hederacea L. Jacq. # IPOHEyellow nutsedge, Cyperus esculentus L. # CYPEScorn Zea mays L. ‘DK 592SR’, ‘DK 683SR’COC, crop-oil concentrateDAT, days after treatmentEPOST, early postemergenceMPOST, mid-postemergenceLPOST, late postemergencePRE, preemergenceUAN, 28% urea ammonium nitrate
Type
Research
Information
Weed Technology , Volume 16 , Issue 2 , June 2002 , pp. 414 - 420
Copyright
Copyright © 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. 1998. Mesotrione Experimental Herbicide Technical Bulletin. Wilmington, DE: Zeneca Ag. Products. 4 p.Google Scholar
Beckett, T. H., Daniel, J. T., and Miller, B. R. 1999. ZA1296: a versatile postemergence broadleaf herbicide for corn. Weed Sci. Soc. Am. Abstr. 39: 65–66.Google Scholar
Bradley, P. R., Johnson, W. G., Hart, S. E., Buesinger, M. B., and Massey, R. E. 2000. Economics of weed management in glufosinate-resistant corn (Zea mays L.). Weed Technol. 14: 495–501.Google Scholar
Fawcett, J. A., Harvey, R. G., Arnold, W. E., Bauman, T. T., Eberlein, C. V., Kells, J. J., Moshier, L. J., Slife, F. W., and Wilson, R. G. 1987. Influence of environment on corn (Zea mays) tolerance to sethoxydim. Weed Sci. 35: 568–575.Google Scholar
Johnson, W. G., Wait, J. D., and Holman, C. S. 1999. Mesotrione programs. N. Cent. Weed Sci. Soc., Res. Rep. 56: 225–226.Google Scholar
Jordan, D. L., Frans, R. E., and McClelland, M. R. 1993. Influence of application rate and timing on efficacy of DPX-PE350 applied postemergence. Weed Technol. 7: 216–219.Google Scholar
King, C. A. and Oliver, L. R. 1992. Application rate and timing of acifluorfen, bentazon, chlorimuron, and imazaquin. Weed Technol. 6: 526–534.CrossRefGoogle Scholar
Krausz, R. F., Young, B. G., Kapusta, G., and Matthews, J. L. 2000. Application timing determines giant foxtail (Setaria faberi) and barnyardgrass (Echinochloa crus-galli) control in no-till corn (Zea mays). Weed Technol. 14: 161–166.Google Scholar
Lee, D. L. 1997. The discovery and structural requirements of inhibitors of p-hydroxyphenylpyruvate dioxygenase. Weed Sci. 45: 601–609.CrossRefGoogle Scholar
Schuh, J. F. and Harvey, R. G. 1989. Woolly cupgrass (Eriochloa villosa) control in corn (Zea mays) with pendimethalin/triazine combinations and cultivation. Weed Sci. 37: 405–411.Google Scholar
Sprague, C. L., Maxwell, D. J., and Wax, L. M. 1999. Comparisons of ZA-1296 and RPA 201772 for weed control in corn. N. Cent. Weed Sci. Soc., Res. Rep. 56: 223–224.Google Scholar
Waltz, A. L., Martin, A. R., and Spotanski, J. J. 1999. Weed control with ZA-1296 in field corn at Lincoln, NE in 1999. N. Cent. Weed Sci. Soc., Res. Rep. 56: 228–230.Google Scholar
Wichert, R. A., Townson, J. K., Bartlett, D. W., and Drost, D. C. 1999. Technical overview of ZA1296, a new corn herbicide from ZENECA. Weed Sci. Soc. Am. Abstr. 39:65.Google Scholar
Young, B. G., Hart, S. E., and Simmons, F. W. 1999a. Preemergence weed control in conventional-till corn (Zea mays) with RPA 201772. Weed Technol. 13: 471–477.Google Scholar
Young, B. G., Johnson, B. C., and Matthews, J. L. 1999b. Evaluation of various adjuvants with mesotrione. N. Cent. Weed Sci. Soc., Res. Rep. 56: 471–472.Google Scholar
Young, B. G., Johnson, B. C., and Matthews, J. L. 1999c. Preemergence and sequential weed control with mesotrione in conventional corn. N. Cent. Weed Sci. Soc., Res. Rep. 56: 226–227.Google Scholar