Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-18T10:59:11.997Z Has data issue: false hasContentIssue false
  • English
  • Français

Fluroxypyr Absorption and Translocation in Leafy Spurge (Euphorbia esula)

Published online by Cambridge University Press:  12 June 2017

Rodney G. Lym
Rodney G. Lym*
Affiliation:
Crop and Weed Sci. Dep., N.D. State Univ., Fargo, ND 58105
Get access Rights & Permissions [Opens in a new window]

Abstract

Absorption and translocation of 14C-fluroxypyr were determined for leafy spurge at various growth stages, under differing relative humidity and temperature conditions, and when applied with picloram or 2,4-D. Absorption of 14C-fluroxypyr was greater in vegetative plants (39%) than in flowering or postflowering plants (25%), while total translocated to roots averaged 2% of applied herbicide regardless of growth stage. Greater 14C-fluroxypyr absorption and translocation occurred in plants exposed to high relative humidity (>90%) compared to low humidity (<30%) for 6 h or longer following treatment. Absorption and translocation to roots was independent of temperature (18 or 24 C). Absorption and translocation declined by 50% when applied with picloram or 2,4-D. However, absorption and translocation of 14C-picloram or 14C-2,4-D were not affected by fluroxypyr. Fluroxypyr would likely be used in a leafy spurge control program only during environmental conditions adverse to control with picloram such as unseasonably warm or cold temperatures or in areas with a high water table.

Keywords

Fluroxypyr, 4-amino-3,5-dichloro-6-fluoro-2-pyridyloxyacetic acidpicloram, 4-amino-3,5,6-trichloro-2-pyridinecarboxylic acid2,4-D, (2,4-dichlorophenoxy)acetic acidleafy spurge, Euphorbia esula L # EPHESpicloram, 2,4-Dherbicide combinationperennial weedtemperaturerelative humidityEPHES
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 40 , Issue 1 , March 1992 , pp. 101 - 105
Copyright
Copyright © 1992 by the 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. Beck, K. G., Sebastian, J. R., and Hanson, D. E. 1989. Leafy spurge control with fluroxypyr, picloram, and 2,4-D on Colorado rangeland. Pages 9–10 in Res. Prog. Rep. West. Soc. Weed Sci. Google Scholar
2. Becker, R. L. and Ralston, D. F. 1989. Leafy spurge control in 1989 with 1988 applications of sulfometuron, nicotinic acid derivatives, and commercial standards. Res. Rep. North Cent. Weed Sci. Soc. 46:102.Google Scholar
3. Ferrell, M. A. and Whitson, T. D. 1989. Fluroxypyr in combination with various herbicides for leafy spurge control. Page 64 in Res. Prog. Rep. West. Soc. Weed Sci. Google Scholar
4. Gylling, S. R. and Arnold, W. S. 1985. Efficacy and economics of leafy spurge (Euphorbia esula) control in pastures. Weed Sci. 33:381–385.Google Scholar
5. Lym, R. G. and Messersmith, C. G. 1985. Leafy spurge control with herbicides in North Dakota: 20-year summary. J. Range. Manage. 38:149–154.Google Scholar
6. Lym, R. G. and Messersmith, C. G. 1985. Leafy spurge control and improved forage production with herbicides. J. Range. Manage. 38:386–391.Google Scholar
7. Lym, R. G. and Messersmith, C. G. 1988. Survey for picloram in North Dakota groundwater. Weed Technol. 2:217–222.CrossRefGoogle Scholar
8. Lym, R. G. and Messersmith, C. G. 1988. Fluroxypyr alone and with auxin herbicides for leafy spurge control. Res. Rep. North Cent. Weed Control Conf. 45:88.Google Scholar
9. Lym, R. G. and Moxness, K. D. 1989. Absorption, translocation, and metabolism of picloram and 2,4-D in leafy spurge (Euphorbia esula). Weed Sci. 37:498–502.Google Scholar
10. Lym, R. G. and Messersmith, C. G. 1990. Fluroxypyr alone and with auxin herbicides applied annually for 3 years to control leafy spurge. Page 8 in Res. Prog. Rep. West. Soc. Weed Sci. Google Scholar
11. Lym, R. G. and Messersmith, C. G. 1990. Effect of temperature on picloram absorption and translocation in leafy spurge (Euphorbia esula). Weed Sci. 38:471–474.Google Scholar
12. Messersmith, C. G. and Lym, R. G. 1983. Distribution and economic impact of leafy spurge in North Dakota. N.D. Farm Res. 40(5):3–7.Google Scholar
13. Moxness, K. D. and Lym, R. G. 1989. Environment and spray additive effects on picloram absorption and translocation in leafy spurge (Euphorbia esula). Weed Sci. 37:181–186.Google Scholar
14. Shober, A. E., McMaster, S. A., and Gantz, R. L. 1986. Fluroxypyr: a new environmentally compatible herbicide. Pages 167–168 in Res. Prog. Rep. West. Soc. Weed Sci. Google Scholar
15. Thompson, F. 1990. Economic impact of leafy spurge on North Dakota grazingland. M.S. Thesis, North Dakota State Univ., Fargo. 99 p.Google Scholar
16. Weed Science Society America. 1989. Herbicide Handbook, sixth ed. Champaign, IL.Google Scholar
17. Whitson, T. D. 1986. Comparative treatments of fluroxypyr, dicamba, and picloram for leafy spurge control. Page 41 in Res. Prog. Rep. West. Soc. Weed Sci. Google Scholar