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Species Susceptibilities to 2,4-D on Mixed-Grass Prairie

Published online by Cambridge University Press:  12 June 2017

D. N. Hyder*
Affiliation:
Plant Science Res. Div., Agr. Res. Serv., U. S. Dep. of Agr., Fort Collins, Colorado 80521

Abstract

Thirteen prominent species decreased 40% or more after applications of (2,4-dichlorophenoxy)acetic acid (2,4-D) at 2.2 kg/ha. Four of the “most-susceptible” species [gumweed (Grindelia squarrosa (Pursh) Dunal), fringed sagebrush (Artemisia frigida Willd.), drummond milk vetch (Astragalus drummondii Dougl. in Hook.), and hairy goldaster (Chrysopsis villosa (Pursh) Nutt.)] are considered undesirable and two of them [bluebells (Mertensia lanceolata (Pursh) A. DC.) and evening-primrose (Oenothera coronopifolia Torr. & Gray)] desirable. The other seven species of this group are quite unimportant for cattle. Therefore, spraying mixed-grass prairie with 2,4-D improves range condition and increases forage production.

Type
Research Article
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

1. Greig-Smith, P. 1957. Quantitative plant ecology. Academic Press, Inc., New York. 198 p.Google Scholar
2. Hyder, D. N., Bement, R. E., Remmenga, E. E., and Terwilliger, C. Jr. 1965. Frequency sampling of blue grama range. J. Range Manage. 18:9093.Google Scholar
3. Snedecor, George W. 1946. Statistical methods. 4th Ed. The Iowa State College Press, Ames, Iowa. 485 p.Google Scholar