Hostname: page-component-8448b6f56d-mp689 Total loading time: 0 Render date: 2024-04-24T09:46:42.467Z Has data issue: false hasContentIssue false
  • English
  • Français

Bentazon Applied Postemergence for Economical Control of Common Cocklebur in Soybeans

Published online by Cambridge University Press:  12 June 2017

C. G. McWhorter  and
J. M. Anderson
C. G. McWhorter
Affiliation:
S. Weed Sci. Lab., Agr. Res. Serv., U.S. Dep. Agr., Stoneville, MS 38776
J. M. Anderson
Affiliation:
Delta Branch, Mississippi Agr., Stoneville, MS 38776
Get access Rights & Permissions [Opens in a new window]

Abstract

Effectiveness of bentazon [3-isopropyl-1H-2,1,3-benzothiadiazin-(4)3H-one 2,2-dioxide] for control of common cocklebur (Xanthium pensylvanicum Wallr.) in soybeans [Glycine max (L.) Merr.] was evaluated in field research over a 3-yr period. Bentazon, applied over-the-top at 0.6 to 1.1 kg/ha, controlled common cocklebur more effectively than over-the-top or directed applications of dinoseb (2-sec-butyl-4,6-dinitrophenol) at 0.8 to 1.7 kg/ha or 2,4-DB [4-(2,4-dichlorophenoxy)butyric acid] at 0.2 kg/ha. Single applications of bentazon were highly effective for control of common cocklebur, but multiple applications usually provided the best control and highest soybean yields. A preemergence treatment of metribuzin [4-amino-6-tert-butyl-3-(methylthio)-as-triazine-5(4H)one] at 1.1 kg/ha and a postemergence application of bentazon at 1.1 kg/ha provided 92 to 99% control of common cocklebur. Control of common cocklebur with bentazon reduced discounts in harvested soybean seed caused by excessive moisture content and foreign material. The reduction in discounts improved soybean seed grades.

Type
Research Article
Information
Weed Science , Volume 24 , Issue 4 , July 1976 , pp. 391 - 396
Copyright
Copyright © 1976 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. Barrentine, W.L. 1974. Common cocklebur competition in soybeans. Weed Sci. 22:600–603.Google Scholar
2. Cooke, F.T. Jr., Anderson, J.M., and Heagler, A.M. 1972. Crop budgets and planning data for major farm enterprise in the Yazoo-Mississippi Delta. Miss. Agr. Exp. Sta. Bul. 794. 56 pp.Google Scholar
3. McWhorter, C.G. and Anderson, J.M. 1976. Effectiveness of metribuzin applied preemergence for economical control of common cocklebur in soybeans. Weed Sci. 24: 385–390.Google Scholar
4. McWhorter, C.G. and Hartwig, E.E. 1972. Competition of johnsongrass and cocklebur with six soybean varieties. Weed Sci. 20:56–59.Google Scholar
5. U.S. Department of Agriculture. 1970. Official grain standards of the United States. Pages 8.1–8.6 in Official Grain Standards of the United States. Revised Ed., U.S. Government Printing Office, Washington, D.C. Google Scholar
6. Waldrep, T.W. and McLaughlin, R.D. 1969. Cocklebur competition and control. Soybean Farmer 3:26–27, 30.Google Scholar
7. Wax, L.M. 1973. Weed control. Pages 417–457 in Caldwell, B.E., ed. Soybeans: Improvement, Production, and Uses. Amer. Soc. Agron., Madison, WI.Google Scholar