Skip to main content Accessibility help

Response of False Broomweed (Ericameria austrotexana) and Associated Herbaceous Vegetation to Pelleted Herbicides

  • H. S. Mayeux (a1) and A. D. Chamrad (a2)


Aerial applications of pelleted tebuthiuron (N-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-N, N′-dimethylurea} at 1 kg/ha to rangeland reduced canopy cover of the subshrub false broomweed (Ericameria austrotexana M.C. Johnst.) by 69 to 78%. Complete control was obtained with 2 kg/ha of tebuthiuron. Picloram (4-amino-3,5,6-trichloropicolinic acid) pellets applied at 2 kg/ha controlled false broomweed in two of four experiments; effectiveness of soil-applied picloram appeared to depend upon sufficient rainfall to move the herbicide into the soil soon after treatment. After the first growing season following application, density of herbaceous species tended to be higher in plots receiving either herbicide than in untreated plots. Picloram suppressed curlymesquite [Hilaria berlangeri (Steud.) Nash], but had little effect on other components of the herbaceous vegetation. Abundance of curlymesquite increased substantially following applications of tebuthiuron, at the expense of annual and short-lived perennial grasses and herbaceous broadleaf species.



Hide All
1. Bovey, R. W., Morton, H. L., Baur, J. R., Diaz-Colon, J. D., Dowler, C. C., and Lehman, S. K. 1960. Granular herbicides for woody plant control. Weed Sci. 17:538541.
2. Cottom, G. and Curtis, J. T. 1956. The use of distance measures in phytosociological sampling. Ecology 37:451460.
3. Mayeux, H. S. Jr., Scifres, C. J., and Crane, R. A. 1980. Ericameria austrotexana and associated range forage responses to herbicides. Weed Sci. 28:602606.
4. Mutz, J. L., Scifres, C. J., Mohr, W. C., and Drawe, D. L. 1979. Control of willow baccharis and spiny aster with pelleted herbicides. Texas Agric. Exp. Stn. B-1194. 12 pp.
5. Pettit, R. D. 1979. Effects of picloram and tebuthiuron pellets on sand shinnery oak communities. J. Range Manage. 32:196200.
6. Scifres, C. J. 1972. Redberry juniper control with soil-applied herbicides. J. Range Manage. 23:308310.
7. Scifres, C. J. and Mutz, J. L. 1978. Herbaceous vegetation changes following applications of tebuthiuron for brush control. J. Range Manage. 31:375378.
8. Scifres, C. J., Mutz, J. L., and Hamilton, W. T. 1979. Control of mixed brush with tebuthiuron. J. Range Manage. 32:115158.
9. Scifres, C. J., Stuth, J. W., and Bovey, R. W. 1981. Control of oaks (Quercus spp.) and associated species on rangeland with tebuthiuron. Weed Sci. 29:270275.
10. 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. 29:535539.


Response of False Broomweed (Ericameria austrotexana) and Associated Herbaceous Vegetation to Pelleted Herbicides

  • H. S. Mayeux (a1) and A. D. Chamrad (a2)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed