Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-26T17:57:27.491Z Has data issue: false hasContentIssue false
  • English
  • Français

Woolly Cupgrass (Eriochloa villosa) Control in Corn (Zea mays) with Pendimethalin/Triazine Combinations and Cultivation

Published online by Cambridge University Press:  12 June 2017

Joseph F. Schuh  and
R. Gordon Harvey
Joseph F. Schuh
Affiliation:
Dep. Agron., Univ. Wisconsin, Madison, WI 53706
R. Gordon Harvey
Affiliation:
Dep. Agron., Univ. Wisconsin, Madison, WI 53706
Get access Rights & Permissions [Opens in a new window]

Abstract

In 1985, 1986, and 1987, pendimethalin at 1.7 kg ai/ha plus 2.2 kg ai/ha cyanazine, 2.2 kg ai/ha atrazine, or 1.1 kg/ha atrazine plus 1.1 kg/ha cyanazine was applied delayed preemergence, early postemergence, and postemergence with and without cultivation to evaluate woolly cupgrass control and corn injury. Results varied from year to year. Dry conditions in 1985 resulted in poorer woolly cupgrass control while cold and wet environments in 1987 resulted in corn injury and reduced yields from postemergence treatments containing cyanazine. Good early-season suppression of woolly cupgrass deteriorated to less than 75% control by the late-season evaluation in all experiments. The best woolly cupgrass control and highest corn yields were usually achieved when herbicide applications were followed by row cultivation. Corn yield increases averaged 28, 17, and 11% in 1985, 1986, and 1987, respectively, when a herbicide treatment was followed by row cultivation. Pendimethalin/triazine treatments followed with a row cultivation adequately suppressed woolly cupgrass in field corn, but adverse environmental conditions often reduced herbicide effectiveness or increased corn injury.

Keywords

Atrazine, 6-chloro-N-ethyl-N′-(1-methylethyl)-1,3,5-triazine-2,4-diaminecyanazine, 2-[[4-chloro-6-(ethylamino)-1,3,5-triazin-2-yl]amino]-2-methylpropanenitrilependimethalin, N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenaminewoolly cupgrass, Eriochloa villosa (Thunb.)Kunth. ♯3 ERBVIcorn, Zea mays L. ‘Pioneer 3747′Atrazinecyanazineintegrated controlERBVI
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 37 , Issue 3 , May 1989 , pp. 405 - 411
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. Ditmarsen, S. C., Sheppard, B. R., and Velovitch, J. J. 1983. Postemergence control of wild proso millet and woolly cupgrass with tridiphane in field corn. Proc. North Cent. Weed Control Conf. 38:120.Google Scholar
2. Ditmarsen, S. C., Ehr, R. J., and Cordes, R. C. 1984. Control of wild proso millet, woolly cupgrass, and bristly sandbur with tridiphane. Proc. North Cent. Weed Control Conf. 39:86.Google Scholar
3. Doersch, R. E. and Doll, J. D. 1985. Handling wild proso millet, woolly cupgrass, and wirestem muhly. Proc. 1985 Fert., Aglime and Pest Mgt. Conf. 24:278–280.Google Scholar
4. Harvey, R. G. 1974. Susceptibility of seven annual grasses to herbicides. Weed Res. 14:51–55.CrossRefGoogle Scholar
5. Hitchcock, A. S. 1950. Manual of the grasses of the United States, 2nd ed. United States Dep. Agric. Misc. Publ. No. 200. United States Gov. Printing Off., Washington, DC. 1051 pp.Google Scholar
6. Holmes, J. and Owen, M. D. 1984. Woolly cupgrass control in corn. Proc. North Cent. Weed Control Conf. 39:107–108.Google Scholar
7. Nelson, J. E. and Bryant, W. E. 1982. Corn herbicide combinations for woolly cupgrass and shattercane control. Proc. North Cent. Weed Control Conf. 37:32–33.Google Scholar
8. Owen, M.D.K. 1986. Evaluation of experimental herbicide combinations for woolly cupgrass in corn, Stratford, Iowa. Res. Rep. North Cent. Weed Control Conf. 43:130–131.Google Scholar
9. Owen, M.D.K. 1987. Woolly cupgrass and giant foxtail control with SC-0774 and SC-0735. Proc. North Cent. Weed Control Conf. 42:51.Google Scholar
10. Schuh, J. F. 1984. Woolly cupgrass control in corn. Proc. North Cent. Weed Control Conf. 39:1.Google Scholar
11. Schuh, J. F. and Harvey, R. G. 1985. Woolly cupgrass control in corn. Proc. North Cent. Weed Control Conf. 40:57.Google Scholar
12. Schuh, J. F. and Harvey, R. G. 1986. Control strategies for woolly cupgrass in corn. Proc. North Cent. Weed Contol Conf. 41:82–83.Google Scholar
13. Schuh, J. F. and Harvey, R. G. 1987. Evaluation of postemergence control strategies for woolly cupgrass in corn. Proc. North Cent. Weed Control Conf. 42:54.Google Scholar
14. Steel, R.G.D. and Torrie, J. H. 1980. Principles and Procedures of Statistics. McGraw-Hill Book Co., New York. 633 pp.Google Scholar
15. Strand, O. E. and Miller, G. R. 1980. Woolly Cupgrass— A New Weed Threat in the Midwest. Weeds Today. Fall 1980. Page 16.Google Scholar