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Triclopyr for Control of Honey Mesquite (Prosopis juliflora var. glandulosa)

Published online by Cambridge University Press:  12 June 2017

Pete W. Jacoby  and
Cecil H. Meadors
Pete W. Jacoby
Affiliation:
Texas Agric. Exp. Stn., P.O. Box 1658, Vernon, TX 76384
Cecil H. Meadors
Affiliation:
Texas Agric. Exp. Stn., P.O. Box 1658, Vernon, TX 76384
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Abstract

Triclopyr {[(3,5,6-trichloro-2-pyridinyl)oxy] acetic acid} was aerially applied at four locations in Texas to determine effectiveness of the amine and ester formulations for the control of honey mesquite [Prosopis juliflora (Swartz) DC. var. glandulosa (Torr.) Cockerell # PRCJG]. The ester formulation was superior to the amine in most trials. Honey mesquite control with triclopyr amine was comparable to that with 2,4,5-T [(2,4,5-trichlorophenoxy)acetic acid] while control with triclopyr ester was similar to that attained with a 1:1 mixture of 2,4, 5-T and picloram (4-amino-3,5,6-trichloropicolinic acid). Honey mesquite control obtained with a 1:1 mixture of 2,4,5-T and dicamba (3,6-dichloro-o-anisic acid) was intermediate between that with the 2,4,5-T and picloram mixture and that with 2,4,5-T alone. Efficacy of triclopyr increased as rates were increased from 0.3 to 0.6 kg ae/ha and from 0.6 to 1.1 kg/ha. Triclopyr formulations were effective when applied in either water or diesel oil/water emulsions. Honey mesquite control from triclopyr in combination with picloram was generally comparable to that from the mixture of picloram and 2,4,5-T.

Keywords

Brush controlrangelandpicloramdicamba2,4,5-TPRCJG
Type
Research Article
Information
Weed Science , Volume 31 , Issue 5 , September 1983 , pp. 681 - 685
Copyright
Copyright © 1983 Weed Science Society of America 

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References

Literature Cited

1. Bovey, R. W., Ketchersid, M. L., and Merkle, M. G. 1979. Distribution of triclopyr and picloram in huisache (Acacia farnesiana). Weed Sci. 27:527–531.CrossRefGoogle Scholar
2. Bovey, R. W. and Mayeux, H. S. Jr. 1980. Effectiveness and distribution of 2,4, 5-T, triclopyr, picloram and 3,6-dichloropicolinic acid in honey mesquite (Prosopis juliflora var. glandulosa). Weed Sci. 28:666–670.CrossRefGoogle Scholar
3. Bovey, R. W. and Meyer, R. E. 1981. Effects of 2,4,5-T, triclopyr and 3,6-dichloropicolinic acid on crop seedlings. Weed Sci. 29:256–261.CrossRefGoogle Scholar
4. Byrd, B. C. and Colby, R. W. 1978. Woody plant control with low volume applications of Garlon 3A herbicide. Down to Earth. 34(2):7–11.Google Scholar
5. Byrd, B. C., Wright, W. G., and Warren, L. E. 1975. Vegetation control with Dowco 23 3 herbicide. Down to Earth. 30(4):8–12.Google Scholar
6. Fisher, C. E., Wiedemann, H. T., Walker, J. P., Meadors, G. H., Brock, J. H., and Cross, B. T. 1972. Brush control research on rangeland. Texas Agric. Exp. Stn. MP-1043. 18.Google Scholar
7. Gratkowski, H. J., Steward, R. E., and Weatherly, H. C. 1978. Triclopyr and krenite herbicides show promise for use in Pacific Northwest forests. Down to Earth. 34(3):28–31.Google Scholar
8. Jacoby, P. W., Meadors, C. H., and Foster, M. A. 1981. Control of honey mesquite (Prosopis juliflora var. glandulosa) with 3,6-dichloropicolinic acid. Weed Sci. 29:376–378.CrossRefGoogle Scholar
9. Steel, R.G.D. and Torrie, J. H. 1980. Principles and Procedures of Statistics. McGraw-Hill Book Co., Inc., New York, NY. 633.Google Scholar