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Response of Herbaceous Vegetation in East-Central Texas to Herbicides

Published online by Cambridge University Press:  12 June 2017

Robert E. Meyer  and
Rodney W. Bovey
Robert E. Meyer
Affiliation:
U.S. Dep. Agric., Agric. Res. Serv., Dep. Range Sci., Texas A&M Univ., College Station, TX 77843
Rodney W. Bovey
Affiliation:
U.S. Dep. Agric., Agric. Res. Serv., Dep. Range Sci., Texas A&M Univ., College Station, TX 77843
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Abstract

Twenty herbicides were applied to a rangeland pasture in the Post Oak Savannah Resource Area of Texas in April 1978 and May 1979. At time of treatment, total vegetation cover was 88 to 100%, with 36% grasses and 52 to 64% broadleaf cover. From May 31 through September, total, grass, and broadleaf covers were 89 to 100, 51 to 65, and 27 to 44%, respectively. One to 2 months after treatment, grass cover generally increased except where certain herbicides, particularly bromacil (5-bromo-3-sec-butyl-6-methyluracil), dalapon (2,2-dichloropropionic acid), glyphosate [N-(phosphonomethyl)glycine], or hexazinone [3-cyclohexyl-6-(dimethylamino)-1-methyl-1,3,5-triazine-2,4 (1H, 3H)-dione] had been applied. By September or October in the year of application only dalapon consistently reduced grass cover. In the year following treatment, grass cover was still reduced on the dalapon-treated plots. Most herbicides reduced broadleaf cover in the year of treatment. Broadleaf cover returned most rapidly to those areas treated with dalapon. During the year following treatment, broadleaf cover remained low on plots treated with picloram (4-amino-3,5,6-trichloropicolinic acid), 2,4,5-T [(2,4,5-trichlorophenoxy)acetic acid], and picloram + 2,4,5-T. For plots treated in 1978, the grass and broadleaf standing-crop weights of untreated plots were 490 and 450 kg/ha, respectively, in October 1978, and 2707 and 1033 kg/ha in October 1979. In 1978, grass weight increased with several herbicide treatments whereas only dalapon increased the broadleaf weight. For plots treated in May 1979 and harvested in September 1979, grass and broadleaf standing-crop weights of untreated plots were 2629 and 607 kg/ha, respectively.

Keywords

Forage speciesatrazineBay Met 1486bromacilbuthidazoledalapondicambadiuron36-dichloropicolinic acidglyphosatehexazinonephenoxy herbicidespicloramsimazinetebuthiurontriclopyr
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 33 , Issue 1 , January 1985 , pp. 81 - 90
Copyright
Copyright © 1985 by the Weed Science Society of America 

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References

Literature Cited

1. Baur, J. R. 1978. Effects of picloram and tebuthiuron on establishment of ryegrass winter pasture. J. Range Manage. 31:450–455.Google Scholar
2. Baur, J. R. 1979. Establishing kleingrass and bermudagrass pastures using glyphosate and tebuthiuron. J. Range Manage. 32:119–122.CrossRefGoogle Scholar
3. Bovey, R. W., Meyer, R. E., Bouse, L. F., and Carlton, J. B. 1984. Seasonal response of woody plants to tebuthiuron pellets. Weed Sci. (In Review).Google Scholar
4. Bovey, R. W., Meyer, R. E., and Holt, E. C. 1974. Tolerance of bermudagrass to herbicides. J. Range Manage. 27:293–296.Google Scholar
5. Bovey, R. W., Meyer, R. E., and Morton, H. L. 1972. Herbage production following brush control with herbicides in Texas. J. Range Manage. 25:136–142.Google Scholar
6. Meyer, R. E. and Baur, J. R. 1979. Smutgrass (Sporobolus poiretti) control in pastures with herbicides. Weed Sci. 27:361–366.Google Scholar
7. Meyer, R. E. and Bovey, R. W. 1980. Hexazinone and other herbicides on Texas woody plants. Weed Sci. 28:358–362.Google Scholar
8. Meyer, R. E. and Bovey, R. W. 1984. Response of Macartney rose (Rosa bracteata) and understory vegetation to herbicides. Weed Sci. 32:63–67.Google Scholar
9. Meyer, R. E. and Bovey, R. W. 1984. Response of yaupon (Ilex vomitoria) and understory vegetation to herbicides. Weed Sci. (In Review).Google Scholar
10. Meyer, R. E., Bovey, R. W., and Baur, J. R. 1978. Control of an oak (Quercus) complex with herbicide granules. Weed Sci. 26:444–453.Google Scholar
11. Scifres, C. J. 1982. Woody plant control in the post oak savannah of Texas with hexazinone. J. Range Manage. 35:401–404.Google Scholar
12. Scifres, C. J., Stuth, J. W., and Bovey, R. W. 1981. Control of oaks (Quercus spp.) and associated woody species on rangeland with tebuthiuron. Weed Sci. 29:270–275.Google Scholar
13. Scifres, C. J., Stuth, J. W., Kirby, D. R., and Angell, R. F. 1981. Forage and livestock production following oak (Quercus spp.) control with tebuthiuron. Weed Sci. 29:535–539.Google Scholar
14. Steel, R.G.D. and Torrie, J. H. 1980. Principles and Procedures of Statistics a Biometrical Approach, 2nd ed. McGraw-Hill Book Co., New York.Google Scholar
15. Winer, B. J. 1971. Statistical Principles in Experimental Design, 2nd ed. McGraw-Hill Book Co., New York.Google Scholar