Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-16T07:26:20.315Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of Imazethapyr on Legumes and the Effect of Legumes on Weeds

Published online by Cambridge University Press:  12 June 2017

Robert G. Wilson
Robert G. Wilson*
Affiliation:
Dep. Agron., Univ. of Nebraska, Scottsbluff. NE 69361
Get access Rights & Permissions [Opens in a new window]

Abstract

A three-year experiment was conducted near Scottsbluff, NE, to evaluate the selectivity of POST-applied imazethapyr for weed control in alfalfa, birdsfoot trefoil, cicer milkvetch, red clover, sainfoin, and yellow sweetclover. Imazethapyr injured all legumes 15 DAT. Imazethapyr also reduced the height of birdsfoot trefoil, cicer milkvetch, red clover, and yellow sweeclover 28 DAT. Legume first cutting yields were not reduced by imazethapyr and with alfalfa, birdsfoot trefoil, cicer milkvetch, and sainfoin, first cutting yields were increased by imazethapyr. Imazethapyr reduced weed biomass in all legume seedings. Weed biomass in new seedings of alfalfa was reduced more than that of the other legumes.

Keywords

Imazethapyr, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acidalfalfa, Medicago sativa L.birdsfoot trefoil, Lotus corniculatus L.cicer milkvetch, Astragalus cicer L.red clover, Trifolium pratense L.sainfoin, Onobrychis viciaefolia Scop.yellow sweetclover, Melilotus officinalis (L.) Lam.Plant competitionAstragalus cicerLotus corniculatusMedicago sativaMelilotus officinalisOnobrychis viciaefoliaTrifolium pratense
Type
Research
Information
Weed Technology , Volume 8 , Issue 3 , September 1994 , pp. 536 - 540
Copyright
Copyright © 1994 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. Anonymous. 1955. Official methods of analysis (8th ed.), Assoc. Analyt. Chem., Washington, D.C. Google Scholar
2. Cord, H. P. 1973. Weeds and alfalfa quality. Weeds 21:400–401.Google Scholar
3. Cosgrove, D. R. and Barrett, M. 1987. Effects of weed control in established alfalfa (Medicago sativa) on forage yield and quality. Weed Sci. 35:564–567.Google Scholar
4. Crafts, A. S. and Robbins, W. W. 1952. Weed Control. McGraw-Hill Book Co. New York. 659 p.Google Scholar
5. Fales, S. L. and Hoover, R. J. 1990. Chemical regulation of alfalfa/grass mixtures with imazethapyr. Agron. J. 82:5–9.Google Scholar
6. Fawcett, R. S. and Harvey, R. G. 1978. Field comparison of seven dinitroaniline herbicides for alfalfa (Medicago sativa) seedling establishment. Weed Sci. 26:123–127.Google Scholar
7. Gomez, K. A. and Gomez, A. A. 1984. Statistical Procedures for Agricultural Research. John Wiley and Sons, New York. 680 p.Google Scholar
8. Leroux, G. D. and Harvey, R. G. 1985. Herbicide for sod-seeding establishment of alfalfa (Medicago sativa) in quackgrass (Agropyron repens) infested alfalfa swards. Weed Sci. 33:222–228.Google Scholar
9. Malik, N. and Townley-Smith, L. 1990. Performance of imazethapyr on pulse crops. Weed Technol. 4:791–798.Google Scholar
10. Peters, E. J. and Lawrence, S. A. 1972. Bromoxynil, chloroxynil, and 2,4-DB for establishing alfalfa and medium red clover. Weed Sci. 20:140–142.Google Scholar
11. Pike, D. R. and Stritzke, J. F. 1984. Alfalfa (Medicago sativa)-cheat (Bromus secalinus) competition. Weed Sci. 32:751–756.Google Scholar
12. Radosevich, S. R. and Holt, J. S. 1984. Weed ecology. Implications for Vegetation Management. John Wiley and Sons, New York. 265 p.Google Scholar
13. Schreiber, M. M. 1967. Effect of density and control of Canada thistle on production and utilization of alfalfa pasture. Weeds 15:138–142.Google Scholar
14. Thrasher, F. P., Cooper, C. S., and Hodgson, J. M. 1963. Competition of forage species with Canada thistle as affected by irrigation and nitrogen levels. Weeds 11:136–138.Google Scholar
15. Wilson, R. G. 1986. Weed control in irrigated seeding alfalfa (Medicago sativa). Weed Sci. 34:423–426.Google Scholar
16. Wilson, R. G. 1989. New herbicides for weed control in established alfalfa (Medicago sativa). Weed Tech. 3:523–526.CrossRefGoogle Scholar