Hostname: page-component-76fb5796d-25wd4 Total loading time: 0 Render date: 2024-04-26T18:55:01.924Z Has data issue: false hasContentIssue false
  • English
  • Français

Hoary Cress (Cardaria draba) Management with Imazethapyr

Published online by Cambridge University Press:  12 June 2017

Robert N. Stougaard ,
Jack I. Stivers  and
Doug L. Holen
Robert N. Stougaard*
Affiliation:
Northernwestern Agricultural Research Center, Kalispell, MT 59901
Jack I. Stivers
Affiliation:
Lake County Extension Office, Ronan, MT 59864
Doug L. Holen
Affiliation:
Northwestern Agricultural Research Center, Kalispell, MT 59901
*
Corresponding author's E-mail: rns@montana.edu.
Get access Rights & Permissions [Opens in a new window]

Abstract

Currently, there are no effective herbicides registered for the control of hoary cress (Cardaria draba) in alfalfa (Medicago sativa) or alfalfa/grass mixtures. Due to this lack of control options, field experiments were conducted near St. Ignatius, MT, from 1995 through 1997 to determine the optimum imazethapyr rate and adjuvant combination for hoary cress control in alfalfa/orchardgrass (Dactylis glomerata) pastures. Imazethapyr was applied in the spring to rosette stage hoary cress plants at 33, 67, and 100 g ai/ha with either a nonionic surfactant or methylated seed oil alone or combined with 28% urea ammonium nitrate (UAN) liquid fertilizer. Hoary cress control was poorest when imazethapyr was applied at 33 g/ha, yet provided a minimum of 80% control. Imazethapyr applied at 67 and 100 g/ha provided greater than 90% control during the year of application regardless of surfactant or UAN additions. None of the treatments controlled hoary cress the year following application. Alfalfa yield was unaffected by imazethapyr applications. First-cutting orchardgrass yield decreased as imazethapyr rate increased, but total seasonal forage yield was unaffected.

Keywords

Imazethapyr, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5)-ethyl-3-pyridinecarboxlic acidhoary cress, Cardaria draba (L.) Desv. # CADDRalfalfa, Medicago sativa L.orchardgrass, Dactylis glomerata L.AdditivesadjuvantsimidazolinoneCADDRMSO, methylated seed oilNIS, nonionic surfactantUAN, urea ammonium nitrate
Type
Research
Information
Weed Technology , Volume 13 , Issue 3 , September 1999 , pp. 581 - 585
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

Anderson, R. N. 1981. Increasing herbicide tolerance of soybeans (Glycine max) by increasing seeding rates. Weed Sci. 29:336–338.CrossRefGoogle Scholar
Burrill, L. C. and Appleby, A. P. 1978. Influence of Italian ryegrass density on efficacy of diuron herbicide. Agron. J. 70:505–506.CrossRefGoogle Scholar
Corns, W. G. and Frankton, C. 1952. Hoary cresses in Canada with particular reference to their distribution and control in Alberta. Sci. Agric. 32:484–495.Google Scholar
Fales, S. L. and Hoover, R. J. 1990. Chemical regulation of alfalfa/grass mixtures with imazethapyr. Agron. J. 82:5–9.CrossRefGoogle Scholar
Fales, S. L., Hill, R. R., and Hoover, R. J. 1990. Chemical regulation of growth and forage quality of cool-season grasses with imazethapyr. Agron. J. 82:9–17.CrossRefGoogle Scholar
Groh, H. 1940. Turkestan alfalfa as a medium of weed introduction. Sci. Agric. 21:36–43.Google Scholar
Hoffman, D. W. and Lavy, T. L. 1978. Plant competition of atrazine. Weed Sci. 26:94–99.CrossRefGoogle Scholar
Kingsbury, J. M. 1964. Poisonous Plants of the United States and Canada. Englewood Cliffs, NJ: Prentice-Hall. 626 p.Google Scholar
Masters, R. A., Stougaard, R. N., and Nissen, S. J. 1994. Leafy spurge (Euphorbia esula) control with fall-applied imazapyr, imazaquin, and imazethapyr. Weed Technol. 8:58–63.CrossRefGoogle Scholar
Mulligan, G. A. and Findlay, J. N. 1974. The biology of Canadian weeds. 3. Cardaria draba, C. chalepensis, and C. pubescens . Can. J. Plant Sci. 54:149–160.CrossRefGoogle Scholar
Mulligan, G. A. and Frankton, C. 1962. Taxonomy of the genus Cardaria with particular reference to the species introduced into North America. Can. J. Bot. 40:1411–1425.CrossRefGoogle Scholar
Pemberton, E. J. and Prunster, R. W. 1940. A survey of the problem of hoary cress (Lepidium draba L.) as a weed in Victoria. J. Counc. Sci. Ind. Res. 13:107–114.Google Scholar
Rosenfels, R. S. and Headley, F. B. 1944. Whitetop eradication. Univ. Nevada Agric. Exp. Stn. Bull. 170:1–18.Google Scholar
[SAS] Statistical Analysis Systems. 1989. SAS/STAT User's Guide. Version 6, Volume 2, 4th ed. Cary, NC: Statistical Analysis Systems Institute. 846 p.Google Scholar
Scurfield, G. 1962. Biological flora of the British Isles. No. 84. Cardaria draba (L.) Desv. (Lepidium draba L.). J. Ecol. 50:489–499.CrossRefGoogle Scholar
Selleck, G. W. 1965. An ecological study of lens- and globe-podded hoary cresses in Saskatchewan. Weeds 13:1–5.CrossRefGoogle Scholar
Stougaard, R. N., Masters, R. A., and Nissen, S. J. 1994. Leafy spurge (Euphorbia esula) control with imidazolinone and sulfonylurea herbicides. Weed Technol. 8:494–498.CrossRefGoogle Scholar
Winkle, M. E., Leavitt, J. R. C., and Burnside, O. C. 1981. Effects of weed density on herbicide absorption and bioactivity. Weed Sci. 29:405–409.CrossRefGoogle Scholar