Hostname: page-component-78c5997874-dh8gc Total loading time: 0 Render date: 2024-11-19T03:20:57.587Z Has data issue: false hasContentIssue false
  • English
  • Français

Preemergence Weed Control in Conventional-Till Corn (Zea mays) with RPA 201772

Published online by Cambridge University Press:  12 June 2017

Bryan G. Young ,
Stephen E. Hart  and
F. William Simmons
Bryan G. Young*
Affiliation:
Southern Illinois University, Department of Plant, soil and General Agriculture. Carbondale, IL 62901-4415
Stephen E. Hart
Affiliation:
Crop Sciences Department and Natural Resources and Environmental Sciences Department. University of Illinois, Urbana, IL. 61801
F. William Simmons
Affiliation:
Crop Sciences Department and Natural Resources and Environmental Sciences Department. University of Illinois, Urbana, IL. 61801
*
Corresponding author's E-mail: [email protected].
Get access Rights & Permissions [Opens in a new window]

Abstract

Field studies were conducted at Dekalb, Urbana, and Brownstown, IL, in 1996 and 1997 to evaluate corn (Zea mays) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both. No significant corn injury from RPA 201772 was observed at any time for all experiments. Giant foxtail (Setaria faberi) control at 60 days after treatment (DAT) was variable and ranged from 47 to 93% for RPA 201772 applied alone at 105 g ai/ ha. Giant foxtail control of at least 90% was observed by applying metolachlor at 1,120 g ai/ha with 105 g/ha RPA 201772. The addition of atrazine at either 1,120 or 1,680 g ai/ha improved control of giant foxtail compared with RPA 201772 applied alone at 105 g/ha in two of the six studies. RPA 201772 applied at 105 g/ha controlled at least 88% of velvetleaf (Abutilon theophrasti), Pennsylvania smartweed (Polygonum pensylvanicum), and smooth pigweed (Amaranthus hybridus). RPA 201772 controlled 88% or less of common waterhemp (Amaranthus rudis), common ragweed (Ambrosia artemisiifolia), and common cocklebur (Xanthium strumarium). Control of these three species was 92% or greater with RPA 201772 plus atrazine. Control of common lambsquarters (Chenopodium album) was at least 96% with RPA 201772 applied alone at any rate in four of the six studies. However, common lambsquarters control was 68 and 77% for RPA 201772 applied alone at 105 g/ha at Urbana and Brownstown in 1997, respectively, where high common lambsquarters densities were prevalent. Under these conditions, the addition of atrazine to RPA 201772 at 105 g/ha improved control of common lambsquarters. RPA 201772 has excellent potential to provide consistent control of velvetleaf compared with atrazine. In contrast, these studies indicate RPA 201772 may provide inconsistent control of certain weed species in different environments. In order to achieve consistent control of a broad spectrum of weed species, RPA 201772 must be combined with other herbicides.

Keywords

Atrazine, 6-chloro-N-ethyl-N'-(1-methylethyl)-1,3,5-triazine-2,4-diamineRPA 201772 (proposed common name, isoxaflutole), 5-cyclopropyl-4-(2-methylsulphonyl-4-trifluoromethylbenzoyl) isoxazolemetolachlor, 2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamidecommon cocklebur, Xanthium strumarium L. # XANSTcommon lambsquarters, Chenopodium album L. # CHEALcommon ragweed, Ambrosia artemisiifolia L. # AMBELcommon waterhemp, Amaranthus rudis Sauer # AMATAgiant foxtail, Setaria faberi Herrm. # SETFAPennsylvania smartweed, Polygonum pensylvanicum L. # POLPYsmooth pigweed, Amaranthus hybridus L. # AMACHvelvetleaf, Abutilon theophrasti Medicus # ABUTHcorn, Zea mays L.ABUTHAMACHAMATAAMBELCHEALPOLPYSETFAXANSTDAT, days after treatment
Type
Research
Information
Weed Technology , Volume 13 , Issue 3 , September 1999 , pp. 471 - 477
Copyright
Copyright © 1999 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

Bhowmik, P. C. and Prostak, R. G. 1996. Activity of EXP 31130A in annual weed control in field corn. Weed Sci. Soc. Am. Abstr. 36:13.Google Scholar
Bhowmik, P. C. and Prostak, R. G. 1997. Comparison of preemergence activity of EXP 31130A in annual weed control under conventional-tillage and no-tillage systems. Weed Sci. Soc. Am. Abstr. 37:4.Google Scholar
Curvey, S. E. and Kapusta, G. 1995a. Corn weed control with preemergence EXP31130A. Res. Rep. North Cent. Weed Sci. Soc. 52:164–165.Google Scholar
Curvey, S. E. and Kapusta, G. 1995b. Corn no-till weed control with preemergence EXP3130A. Res. Rep. North Cent. Weed Sci. Soc. 52:166.Google Scholar
Hart, S. E., Wax, L. M., and Maxwell, D. J. 1995. EXP31130A in conventional corn. Urbana, Illinois, 1995. Res. Rep. North Cent. Weed Sci. Soc. 52:204.Google Scholar
Hart, S. E., Maxwell, D. J., and Wax, L. M. 1997. Weed control in conventional corn. Dekalb, Illinois, 1997. Res Rep. North Cent. Weed Sci. Soc. 54:134–136.Google Scholar
Hart, S. E. and Maxwell, D. J. 1995. Preemergence treatments for weed control in conventional tillage corn. Dekalb, Illinois, 1995. Res. Rep. North Cent. Weed Sci. Soc. 52:232–234.Google Scholar
Harvey, R. G., Albright, J. W., Anthon, T. M., and Kutil, J. L. 1995. Wild-proso millet control with EXP-31130A in field corn study. Res. Rep. North Cent. Weed Sci. Soc. 52:118–119.Google Scholar
Johnson, W. G., Wait, J. D., Holman, C. S., Niekamp, J. W., and Bradley, P. R. 1997. Weed control programs with isoxaflutole in corn. Columbia, Missouri, 1997. Res. Rep. North Cent. Weed Sci. Soc. 54:124–125.Google Scholar
Lueschen, W. E. and Getting, J. K. 1995. Weed control with soil applied RPA 201772 at Lamberton, MN in 1995. Res. Rep. North Cent. Weed Sci. Soc. 52:222–223.Google Scholar
Luscombe, B.M., Vrabel, T. E., Paulsgrove, M. D., Cramp, S., Cain, P., Gamblin, A., and Millet, J. C. 1994. RPA 201772: a new broad spectrum preemergence herbicide for corn. Proc. North Cent. Weed Sci. Soc. 49:57–58.Google Scholar
Mosier, D. G., Duckworth, K. K. Watteyne, King, L. L., and Wrucke, M. A. 1995. Efficacy of EXP31130A in conventional and no-till corn. Proc. North Cent. Weed Sci. Soc. 50:74.Google Scholar
Obermeier, M. R., Slack, C. H., Martin, J. R., and Witt, W. W. 1995. Evaluations of EXP31130A—a new preemergene corn herbicide. Proc. North Cent. Weed Sci. Soc. 50:25–26.Google Scholar
simkins, G. S., Lengkeek, V. H., Duckworth, W., and Vrabel, T. E. 1995. Effect of application timing on performance of EXP31130A for field corn weed control. Proc. North Cent. Weed Sci. Soc. 50:25.Google Scholar
Sprague, C. L., Kells, J. J., and Penner, D. 1996. Weed control and corn tolerance with isoxaflutole. Proc. North Cent. Weed Sci. Soc. 51:50–51.Google Scholar
Sprague, C. L., Kells, J. J., and Penner, D. 1997. Effect of application timing on corn tolerance and weed control with isoxaflutole. Weed Sci. Soc. Am. Abstr. 37:5.Google Scholar
Veilleux, D. P., Lavoy, J. D., Duckworth, W., and Christian, M. L. 1995. Efficacy of EXP31130A tank mixtures in conventional and no-till corn. Proc. North Cent. Weed Sci. Soc. 50:75.Google Scholar
Vrabel, T. E., Jensen, J. O., Wrucke, M. A., and Hicks, C. 1995. EXP31130A: a new preemergent herbicide for corn. Proc. North Cent. Weed Sci. Soc. 50:24–25.Google Scholar
Wax, L. M., Hart, S. E., and Maxwell, D. J. 1996. Weed control in conventional corn. Urbana, Illinois, 1996. Res. Rep. North Cent. Weed Sci. Soc. 53:222–223.Google Scholar