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Comparative Persistence and Mobility of Pyridine and Phenoxy Herbicides in Soil

Published online by Cambridge University Press:  12 June 2017

James R. Jotcham ,
David W. Smith  and
Gerald R. Stephenson
James R. Jotcham
Affiliation:
Balsam Res., Box 900, Berwick, Nova Scotia, Canada BOP 1EO
David W. Smith
Affiliation:
Dep. Bot., Univ. Guelph, Guelph, Ontario, Canada N1G 2W1
Gerald R. Stephenson
Affiliation:
Dep. Environ. Biol., Univ. Guelph, Guelph, Ontario, Canada N1G 2W1
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Abstract

Bioassays with soybeans and lentils were used to compare the persistence of 2,4,5-T, triclopyr, and picloram in soil after applying 0.038, 0.38, and 3.8 kg ae/ha under field conditions. Soil samples were collected from 1 to 269 days after spraying and were kept frozen until growth room bioassays were conducted. Triclopyr was slightly less persistent than 2,4,5-T, but neither herbicide was biologically active during the next season. At least 90% of picloram disappeared within 7 months, but its biological activity was more persistent than that of either triclopyr or 2,4,5-T. Nine months after treatment, neither lentils nor soybeans could be grown in soil treated with picloram at 3.8 kg/ka. Triclopyr and 2,4-D had smiilar soil thin layer chromatographic mobilities in four different scils. Picloram was significantly more mobile than either triclopyr or 2,4,5-T, primarily due to its lower adsorption in the soils examined.

Keywords

2,4-D, (2,4-dichlorophenoxy)acetic acidpicloram, 4-amino-3,4,6-trichloro-2-pyridinecarboxylic acid2,4,5-T, (2,4,5-trichlorophenoxy)acetic acidtriclopyr, [(3,5,6-trichloro-2-pyridinyl)oxy]acetic acidsoybeans, Glycine max (L.)Merr. ‘Evans’lentils, Lens culinaris Medik. ‘Laird’Bioassaysoil thin-layer chromatographypicloramtriclopyr
Type
Research
Information
Weed Technology , Volume 3 , Issue 1 , March 1989 , pp. 155 - 161
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

Literature Cited

1. Altom, J. D., and Stritzke, J. F. 1973. Degradation of dicamba, picloram and four phenoxy herbicides in soils. Weed Sci. 21:556–560.Google Scholar
2. Anderson, G. W., and Smith, L. W. 1969. Persistence in soil of picloram. Can. Weed Comm. (East Sec.) Res. Rep. 237.Google Scholar
3. Baur, J. D., Baker, R. D., Bovey, R. W., and Smith, J. D. 1972. Concentration of picloram in the soil profile. Weed Sci. 20:305–309.Google Scholar
4. 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 julifora var. glandulosa). Weed Sci. 28:666–670.CrossRefGoogle Scholar
5. Bovey, R. W., and Young, A. L. 1980. The science of 2,4,5-T and associated phenoxy herbicides. Wiley, New York.Google Scholar
6. Byrd, B. C., Wright, W. G., and Warren, L. E. 1974. Vegetation control with 3,5,6-trichloropyridyloxy acetic acid. Proc. North Cent. Weed Control Conf. 29:137–138.Google Scholar
7. Goping, C.A.I., Youngson, C. R., and Hamaker, J. W. 1965. Tordon herbicide disappearance from soils. Down Earth 20:3–5.Google Scholar
8. Grover, R. 1977. Mobility of dicamba, picloram and 2,4-D in soil columns. Weed Sci. 25:159–162.CrossRefGoogle Scholar
9. Helling, C. S. 1971. Pesticide mobility in soils. I. Parameters of thin layer chromatography. Proc. Soil Sci. Soc. Am. 35:732–737.Google Scholar
10. Helling, C. S. 1971. Pesticide mobility in soils. II. Applications of soil thin-layer chromatography. Proc. Soil. Sci. Soc. Am. 35:737–743.Google Scholar
11. Helling, C. S. 1981. Pesticide mobility in soils. III. Influence of soil properties. Proc. Soil. Sci. Soc. Am. 35:743–748.Google Scholar
12. Keys, C. H. 1976. Canada thistle control with herbicides in the fallow year. Can. Weed Comm. (West Sec.) Res. Rep. V:2, p. 540.Google Scholar
13. Nie, N. H., Hull, C. H., Jenkins, J. G., Steinbrenner, K., and Bent, D. H. 1975. SPSS. Statistical Package for the Social Sciences. McGraw-Hill Book Co., Toronto.Google Scholar
14. Phillips, W. M., and Feltner, K. C. 1972. Persistence and movement of picloram in two Kansas soils. Weed Sci. 20:110–116.Google Scholar
15. Radosevich, S. R., and Bayer, D. E. 1979. Effect of temperature and photoperiod on triclopyr, picloram and 2,4,5-T. Weed Sci. 27:22–27.Google Scholar
16. Richardson, W. G., and Parker, C. 1976. The activity and preemergence selectivity of some recently developed herbicides: K 1441, melfluidide, WL 29266, epronaz, Dowco 290 and triclopyr. Tech. Rep., Agric. Res. Counc. Weed Res. Organ. No. 41.Google Scholar
17. Ryder, J. C. 1976. Right-of-way vegetation control with high-volume ground applications of triclopyr. Proc. North Cent. Weed Control Conf. 30:89.Google Scholar
18. Sirons, G. J., Frank, R., and Dell, R. M. 1977. Picloram residues in sprayed MacDonald-Cartier Freeway rights-of-way. Bull. Environ. Contam. Toxicol. 18:526–533.Google Scholar
19. Smith, A. E. 1982. Herbicides and the soil environment in Canada. Can. J. Soil Sci. 62:433–460.Google Scholar
20. Stephenson, G. R. 1976. Evaluation of Dowco 233, alone and in mixtures for the control of deciduous brush and conifers. Can. Weed Comm. (East Sect.) Res. Rep. 275–276.Google Scholar
21. Thompson, D. G., Stephenson, G. R., Solomon, K. R., and Skepasts, A. V. 1984. Persistance of (2,4-dichlorophenoxy)acetic acid and 2-(2,4-dichlorophenoxy)propionic acid in agricultural and forest soils of northern and southern Ontario. J. Agric. Food Chem. 32:578–581.Google Scholar
22. Warren, L. E. 1976. Control of woody plants with cut surface applications of triclopyr. Proc. West. Soc. Weed. Sci. 29:126–140.Google Scholar
23. Willis, R. G., Stephenson, G. R., Fletcher, R. A., and Prasad, R. 1989. Seasonal variations in the tolerance of jack pine and white spruce to glyphosate and triclopyr. Weed Technol. (submitted);Google Scholar