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Response of Seedling Alfalfa (Medicago sativa) to Four Postemergence Herbicides

Published online by Cambridge University Press:  12 June 2017

Dennis Tonks ,
Larry S. Jeffery  and
Bruce L. Webb
Dennis Tonks
Affiliation:
Dep. Plant Path. Weed Sci., Colo. State Univ., Ft. Collins, CO 80523
Larry S. Jeffery
Affiliation:
Dep. Agron. and Hortic., Brigham Young Univ., Provo, UT 84602
Bruce L. Webb
Affiliation:
Dep. Agron. and Hortic., Brigham Young Univ., Provo, UT 84602
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Abstract

Response of seedling alfalfa to four herbicides applied at the 2nd, 4th, and 8th trifoliate leaf stages was evaluated in 1988 and 1989. There was no interaction between the herbicides and alfalfa growth stages at the time of herbicide application in either year. Bentazon did not reduce alfalfa height or yield of the first cutting in either year. The dimethylamine salt of 2,4-DB and bromoxynil reduced first-cutting alfalfa yield in 1988 and 1989, respectively, and the butoxyethanol ester of 2,4-DB reduced first-cutting alfalfa yield both years. Each herbicide affected one or more measurements of alfalfa quality in at least one year.

Keywords

Bentazon, 3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxidebromoxynil, 3,5-dibromo-4-hydroxybenzonitrile2,4-DB, 4-(2,4-dichlorophenoxy)butanoic acidalfalfa, Medicago sativa L.Bentazonbromoxynil2,4-DB

Information

Type
Research
Information
Weed Technology , Volume 5 , Issue 4 , December 1991 , pp. 736 - 738
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

Literature Cited

1. Anonymous. 1991. Basagran Postemergence Herbicide. p. 455–473 in Crop Protection Chemicals Reference. 7th ed. Chemical and Pharmaceutical Press, John Wiley and Sons, New York.Google Scholar
2. Anonymous. 1991. Buctril Herbicide. p. 1774–1786 in Crop Protection Chemicals Reference, 7th ed. Chemical and Pharmaceutical Press, John Wiley and Sons, New York.Google Scholar
3. A.O.A.C. 1980. Official Methods of Analysis. (13th ed.). Assoc. of Analytical Chemists, Washington, DC. p. 127–129 and 134–135.Google Scholar
4. Cords, H. P. 1973. Weeds and alfalfa hay quality. Weeds 21:400–401.Google Scholar
5. Cosgrove, D. R., and Barrett, M. 1987. Effects of weed control in established alfalfa (Medicago sativa L.) on forage yield and quality. Weed Sci. 35:564–567.Google Scholar
6. Dutt, T. E., Harvey, R. G., Fawcett, R. S., Jorgenson, N. A., Larsen, J. J., and Schlough, D. A. 1979. Forage quality and animal performance as influenced by quackgrass control in alfalfa with pronamide. Weed Sci. 27:127–132.Google Scholar
7. Fawcett, R. S., and Harvey, R. G. 1978. Field comparison of seven dinitroaniline herbicides for alfalfa (Medicago sativa). Weed Sci. 36:123–127.CrossRefGoogle Scholar
8. Fischer, A. J., Dawson, J. H., and Appleby, A. P. 1988. Interference of annual weeds in seedling alfalfa (Medicago sativa). Weed Sci. 36:583–588.Google Scholar
9. Harvey, R. G. 1991. Bentazon for annual weed control in newly seeded alfalfa (Medicago sativa). Weed Technol. 5:154–158.Google Scholar
10. Holland, C. and Keasar, W. 1990. Pioneer forage manual, a nutritional guide. Pioneer Hi-Bred International, Inc., Des Moines, IA, 55 p.Google Scholar
11. Marten, G. C., and Anderson, R. N. 1975. Forage nutritive value and palatability of 12 common annual weeds. Crop Sci. 15:821–827.Google Scholar
12. McCarty, M. K., and Sand, P. F. 1961. Chemical weed control in seedling alfalfa. III. Effect of some herbicides on five varieties. Weeds. 9:14–19.Google Scholar
13. Peregine, E. K., and Norris, R. F. 1988. Environmental modification of seedling alfalfa, (Medicao sativa), tolerance to bromoxynil. Weed Sci. 36:671–677.Google Scholar
14. Peters, E. J., and Linscott, D. L. 1988. Weeds and weed control. p. 704–735 in Hanson, A. A., Barnes, D. K., and Hill, R. R. Jr., eds. Alfalfa and Alfalfa Improvement. Am. Soc. Agron. Monogr. No. 29. Madison, WI.Google Scholar
15. Sand, P. F., and McCarty, M. K. 1959. Chemical weed control in seedling alfalfa. II. Control of broad-leaved weeds. Weeds 7:317–323.Google Scholar
16. Temme, D. G., Harvey, R. G., Fawcett, R. S., and Young, A. W. 1979. Effects of annual weed control on alfalfa forage quality. Agron. J. 71:51–54.Google Scholar
17. Van Soest, P. J. 1963. The use of detergents in analysis of fibrous feeds. II. A rapid method for determination of fiber and lignin. J. Assoc. Off. Anal. Chem. 46:829–835.Google Scholar