Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-24T06:51:31.512Z Has data issue: false hasContentIssue false
  • English
  • Français

Response of Live Oak (Quercus virginiana) and Understory Vegetation to Herbicides

Published online by Cambridge University Press:  12 June 2017

Robert E. Meyer ,
Rodney W. Bovey ,
L. Fred Bouse  and
James B. Carlton
Robert E. Meyer
Affiliation:
U.S. Dep. Agric., Dep. Range Sci., Texas A&M Univ., College Station, TX 77843
Rodney W. Bovey
Affiliation:
U.S. Dep. Agric., Dep. Range Sci., Texas A&M Univ., College Station, TX 77843
L. Fred Bouse
Affiliation:
U.S. Dep. Agric., Dep. Agric. Engineering, Texas A&M Univ., College Station, TX 77843
James B. Carlton
Affiliation:
U.S. Dep. Agric., Dep. Agric. Engineering, Texas A&M Univ., College Station, TX 77843
Get access Rights & Permissions [Opens in a new window]

Abstract

Live oak (Quercus virginiana Mill. # QUEVM) on the Texas Coastal Prairie was treated with herbicides using ground and aerial application methods. Tebuthiuron {N-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-N,N′-dimethylurea} and pellets of buthidazole {3-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-4-hydroxy-1-methyl-2-imidazolidinone} at 2.2 kg ai/ha were the most effective herbicides, killing 60 to 95% of the live oak. Tebuthiuron pellets 3.2 mm in diam were more effective than the wettable powder at 1.1 kg/ha. Bay Met 1486 {N-[5-(ethylsulfonyl)-1,3,4-thiadiazole-2-yl]-N,N′-dimethylurea}, Dowco 290 (3,6-dichloropicolinic acid), hexazinone [3-cyclohexyl-6-(dimethylamino)-1-methyl-1,3,5-triazine-2,4(1H, 3H)-dione], and picloram (4-amino-3,5,6-trichloropicolinic acid) reduced the live oak canopy at 2.2 kg/ha whereas 2,4,5-T [(2,4,5-trichlorophenoxy)acetic acid] and triclopyr {[(3,5,6-trichloro-2-pyridinyl)oxy] acetic acid} were ineffective. Foliage-active herbicides generally were most effective in reducing the live oak canopy during the year of application. The soil-active herbicides generally were most active 1 or 2 yr after herbicide application. All herbicides reduced the live oak cover sufficiently to allow an increase in grass cover 2 to 4 months after treatment. Tebuthiuron at 2.2 kg/ha maintained a high degree of grass cover at least 2 or 3 yr after treatment.

Keywords

Bay Met 1486buthidazoleDowco 290hexazinonepicloramtebuthiuron2,4,5-TtriclopyrQUEVM
Type
Research Article
Information
Weed Science , Volume 31 , Issue 5 , September 1983 , pp. 639 - 647
Copyright
Copyright © 1983 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. Bouse, L. F., Carlton, J. B., and Brusse, J. C. 1982. Dry materials metering system for aircraft. Trans. Am. Soc. Agric. Eng. 25:316–320.Google Scholar
2. Bovey, R. W., Lehman, S. K., Morton, H. L., and Baur, J. R. 1969. Control of live oak in south Texas. J. Range Manage. 22:315–318.Google Scholar
3. Bovey, R. W. and Meyer, R. E. 1978. Control of huisache with soil-applied herbicides. J. Range Manage. 31:179–182.Google Scholar
4. Bovey, R. W., Morton, H. L., and Baur, J. R. 1969. Control of live oak by herbicides applied at various rates and dates. Weed Sci. 17:373–376.Google Scholar
5. Bovey, R. W., Morton, H. L., Baur, J. R., Diaz-Colon, J. D., Dowler, C. C., and Lehman, S. K. 1969. Granular herbicides for woody plant control. Weed Sci. 17:538–541.Google Scholar
6. Bovey, R. W., Morton, H. L., Meyer, R. E., Flynt, T. O., and Riley, T. E. 1972. Control of yaupon and associated species. Weed Sci. 20:246–249.Google Scholar
7. Hoffman, G. O. 1970. Brush control with granular herbicides. Tex. Agric. Ext. Leaflet 898. 1 p.Google Scholar
8. Meyer, R. E. and Bovey, R. W. 1979. Control of honey mesquite (Prosopis juliflora var. glandulosa) and Macartney rose (Rosa bracteata) with soil-applied herbicides. Weed Sci. 27:280–284.Google Scholar
9. Meyer, R. E. and Bovey, R. W. 1980. Control of live oak (Quercus virginiana) and understory vegetation with soil-applied herbicides. Weed Sci. 28:51–58.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. Meyer, R. E. and Riley, T. E. 1969. Influence of picloram granules and sprays on whitebrush. Weed Sci. 17:293–295.Google Scholar
12. Pettit, R. D. 1979. Effects of picloram and tebuthiuron pellets on sand shinnery oak communities. J. Range Manage. 32:196–200.Google Scholar
13. Scifres, C. J. 1982. Woody plant control in the post oak savannah of Texas with hexazinone. J. Range Manage. 35:401–404.Google Scholar
14. Scifres, C. J. and Kelley, D. M. 1979. Range vegetation response to burning thicketized live oak savannah. Tex. Agric. Exp. Stn. Bull. 1246. 15.Google Scholar
15. Scifres, C. J., Mutz, J. L., and Hamilton, W. T. 1979. Control of mixed brush with tebuthiuron. J. Range Manage. 32:155–158.Google Scholar
16. Scifres, C. J., Mutz, J. L., and Meadors, C. H. 1978. Response of range vegetation to grid placement and aerial application of karbutilate. Weed Sci. 26:139–144.Google Scholar
17. 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.CrossRefGoogle Scholar
18. 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
19. Shroyer, J. P., Stritzke, J. F., and Croy, L. I. 1979. Carbohydrate levels and control of blackjack oak and winged elm treated with tebuthiuron and 2,4,5-T. J. Range Manage. 32:60–62.Google Scholar
20. Smith, H. N. and Rechenthin, C. A. 1964. Grassland restoration. Part I. The Texas brush problem. U.S. Dep. Agric., Soil Conserv. 4-18114. 16.Google Scholar
21. Stritzke, J. F. 1976. Selective removal of brush by grid placement of herbicides. Proc. South. Weed Sci. Soc. 29:255 (Abstr.).Google Scholar