Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-10T06:37:37.876Z Has data issue: false hasContentIssue false
  • English
  • Français

Common Chickweed Control in Established Alfalfa

Published online by Cambridge University Press:  12 June 2017

George Kapusta
George Kapusta*
Affiliation:
Plant Ind. Dep. Res. Sta., Southern Illinois University, Carbondale, IL. 62901
Get access Rights & Permissions [Opens in a new window]

Abstract

Herbicide treatments were applied to established alfalfa (Medicago sativa L.) in 1969 and 1970 to determine winter annual weed control efficacy, crop tolerance, and influence on alfalfa yield and protein. Common chickweed (Stellaria media (L.) Cyrillo) was the predominant species in both years. Excellent weed control was achieved in 1969 with 2-sec-butylamino-4-ethylamino-6-methoxy-s-triazine (GS 14254) at 1.7 kg/ha, 2-[[4-chloro-6-(ethylamino)-s-triazin-2-yl]amino]-2-methyl-propionitrile (cyanazine) at 4.5 kg/ha, 2-chloro-4,6-bis(ethylamino)-s-triazine (simazine) at 1.7 kg/ha, and 3-tert-butyl-5-chloro-6-methyluracil (terbacil) at 1.1 kg/ha. Several other treatments also significantly reduced weed yields. All herbicides significantly reduced weed yields in 1970. First harvest alfalfa yields in 1969 were not increased significantly despite the excellent weed control afforded by several treatments. Second harvest alfalfa yields did not differ significantly, however, weeds were not a problem in the regrowth. In 1970 four of the 19 treatments did yield significantly more than control plots. Alfalfa protein was not altered by any of the treatments either year.

Type
Research Article
Information
Weed Science , Volume 21 , Issue 2 , March 1973 , pp. 119 - 122
Copyright
Copyright © 1973 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. Association of Official Agricultural Chemists. 1955. Official methods of analysis, 8th edition, Assoc. Offic. Agr. Chem., Washington, D. C. 1008 p.Google Scholar
2. Behrens, Richard and Elling, L. J. 1969. Herbicides for annual weed control in established legumes. N. Centr. Weed Contr. Conf. Res. Rep. 26:69–70.Google Scholar
3. Dawson, J. H. 1966. Factors affecting dodder control with granular CIPC. Weeds 14:255–259.Google Scholar
4. Dawson, J. H. 1967. Soil-applied herbicides for dodder-control: initial greenhouse evaluation. Wash. Agr. Exp. Sta. Bull. 691. 7 p.Google Scholar
5. Dawson, J. H. 1969. Longevity of dodder control by soil-applied herbicides in the greenhouse. Weed Sci. 17:295–298.Google Scholar
6. Dawson, J. H. 1970. Dodder control in alfalfa with dichlobenil. Weed Sci. 18:225–230.Google Scholar
7. Dawson, J. H. 1971. Establishing alfalfa on dodder-infested soil. Weed Sci. 19:222–225.Google Scholar
8. Dawson, J. H. 1971. Dodder control in alfalfa with dinoseb and D(-)(3-chlorophenylcarbamoyloxy)-2N-isopropylpropionamide (RP-11755.). Weed Sci. 19:551–554.CrossRefGoogle Scholar
9. Dawson, J. H., Lee, W. O., and Timmons, F. L. 1969. Controlling dodder in alfalfa. U.S. Dep. of Agr. Farmers' Bull. 2111 (Rev). 16 p.Google Scholar
10. Hastings, R. F. and Kust, C. A. 1970. Control of yellow rocket and white cockle in established alfalfa. Weed Sci. 18:329–333.Google Scholar
11. Kust, C. A. 1969. Selective control of hoary alyssum in alfalfa. Weed Sci. 17:99–101.CrossRefGoogle Scholar
12. Linscott, D. L. and Hagin, R. D. 1967. Protecting alfalfa seedlings from a triazine with activated charcoal. Weeds 15:304–306.Google Scholar
13. Linscott, D. L., Seaney, R. R., and Hagin, R. D. 1967. Subsurface placement of EPTC for weed control in seedling legumes. Weeds 15:259–264.Google Scholar
14. Linscott, D. L. and Hagin, R. D. 1968. Interaction of EPTC and DNBP on seedlings of alfalfa and birdsfoot trefoil. Weed Sci. 16:182–184.Google Scholar
15. Linscott, D. L. and Hagin, R. D. 1969. Precision placement of herbicides for weed control in seedling alfalfa. Weed Sci. 17:46–47.Google Scholar
16. Linscott, D. L., Akhavein, A. A., and Hagin, R. D. 1969. Paraquat for weed control prior to establishing legumes. Weed Sci. 17:428–431.Google Scholar
17. Pearson, J. O. and Meggitt, W. F. 1968. Weed control in established alfalfa with terbacil and simazine. N. Centr. Weed Control Conf. Res. Rep. 25:56.Google Scholar
18. Peters, R. A. and O'Leary, R. M. 1967. Herbicidal response of white cockle and other winter weeds associated with alfalfa. Proc. Northeast Weed Contr. Conf. 21:299–302.Google Scholar
19. Peters, E. J. and Lowance, S. A. 1968. Control of weeds in dormant alfalfa. N. Centr. Weed Contr. Conf. Res. Rep. 25:54.Google Scholar
20. Santelmann, P. W., Burt, E. O., and Willard, C. J. 1956. The use of herbicides in establishing legume seedlings. Weeds 4:156–163.CrossRefGoogle Scholar
21. Schreiber, M. M. 1967. Effect of density and control of Canada thistle on production and utilization of alfalfa pasture. Weeds 15:138–142.CrossRefGoogle Scholar
22. Slater, C. H., Dawson, J. H., Furtick, W. R., and Appleby, A. P. 1969. Effects of chlorpropham vapors on dodder seedlings. Weed Sci. 17:238–241.Google Scholar