Hostname: page-component-76fb5796d-22dnz Total loading time: 0 Render date: 2024-04-28T07:02:22.023Z Has data issue: false hasContentIssue false

Uptake and Translocation of Fluazifop by Three Annual Grasses

Published online by Cambridge University Press:  12 June 2017

Jeffrey F. Derr
Affiliation:
Dep. Hortic. Sci., North Carolina State Univ., Raleigh, NC 27695–7609
Thomas J. Monaco
Affiliation:
Dep. Hortic. Sci., North Carolina State Univ., Raleigh, NC 27695–7609
Thomas J. Sheets
Affiliation:
Pestic. Residue Res. Lab., North Carolina State Univ., Raleigh, NC 27695–7609

Abstract

The butyl ester of fluazifop {[(±)-2-[4-[[5-trifluoromethyl)-2-pyridinyl] oxy] phenoxy)propanoic acid} at 0.26 μM in nutrient solution inhibited root growth of hydroponically grown goosegrass (Eleusine indica Gaertn. ♯ ELEIN), large crabgrass [Digitaria sanguinalis (L.) Scop. ♯ DIGSA], and giant foxtail (Setaria faberi Herrm. ♯ SETFA). Treating the soil and plant foliage at 0.035 or 0.07 kg ai/ha did not result in greater phytotoxicity than exposing only the foliage of each grass to the herbicide. Foliar-applied fluazifop was retained on the foliage in similar amounts by each of the species. Translocation of 14C to all plant parts was detected 6 h after foliar application of the butyl ester of 14C-fluazifop to the grasses in the pretillering or tillering stage. The majority (90%) of 14C absorbed by each of the species remained in the treated leaf. In hydroponic studies, each species exuded 14C into nutrient solution following foliar application of the 14C-labeled herbicide. The exuded material was predominantly fluazifop with small amounts of compounds more polar than the butyl ester of fluazifop. Uptake and translocation studies suggest that the greater sensitivity of goosegrass to fluazifop may be related to higher concentrations of the herbicide present in plant tissue.

Type
Physiology, Chemistry, and Biochemistry
Copyright
Copyright © 1985 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. Boldt, P. F. and Putnam, A. R. 1981. Selectivity mechanisms for foliar application of diclofop-methyl. II. Metabolism. Weed Sci. 29:237241.Google Scholar
2. Boldt, P. F. and Putnam, A. R. 1980. Selectivity mechanisms for diclofop-methyl. I. Retention, absorption, and volatility. Weed Sci. 28:474477.CrossRefGoogle Scholar
3. Brezeanu, A. B., Davis, D. G., and Shimabukuro, R. H. 1976. Ultrastructural effects and translocation of methyl-2-(4-(2,4-dichlorophenoxy)phenoxy propanoate in wheat (Triticum aestivum) and wild oat (Avena fatua). Can. J. Bot. 54:20382048.Google Scholar
4. Buhler, D. D. and Burnside, O. C. 1984. Herbicidal activity of fluazifop-butyl, haloxyfop-methyl, and sethoxydim in soil. Weed Sci. 32:824831.CrossRefGoogle Scholar
5. Bukovac, M. J. 1976. Herbicide entry into plants. Pages 335364 in Audus, L. J., ed. Herbicides – Physiology, Biochemistry, Ecology. 2nd ed., Vol. 1. Academic Press, New York.Google Scholar
6. Crafts, A. S. and Yamaguchi, S. 1964. The autoradiography of plant materials. Calif. Agric. Exp. Stn. Manual 35. 143 pp.Google Scholar
7. Derr, J. F., Monaco, T. J., and Sheets, T. J. Response of three annual grasses to fluazifop-butyl. Weed Sci. 33: (In press).Google Scholar
8. Hendley, P., Dicks, J. W., Monaco, T. J., Slyfield, S. M., Tummon, O. J., and Barrett, J. C. 1985. Translocation and metabolism of pyridinyloxyphenoxypropionate herbicides in rhizomatous quackgrass (Agropyron repens). Weed Sci. 33:1124.Google Scholar
9. Hoagland, D. R. and Arnon, D. I. 1950. The water culture method for growing plants without soil. Calif. Agric. Exp. Stn. Circ. 347. 32 pp.Google Scholar
10. Kells, J. J., Meggitt, W. F., and Penner, D. 1984. Absorption, translocation and activity of fluazifop-butyl as influenced by plant growth stage and environment. Weed Sci. 32:143149.Google Scholar
11. McWhorter, C. G. 1981. Effects of temperature and relative humidity on translocation of 14C-metriflufen in johnsongrass (Sorghum halepense) and soybean (Glycine max). Weed Sci. 29:8793.CrossRefGoogle Scholar
12. Shimabukuro, R. H., Walsh, W. C., and Hoerauf, R. A. 1979. Metabolism of selectivity of diclofop-methyl in wild oat and wheat. J. Agric. Food Chem. 27:615623.Google Scholar
13. Stonebridge, W. C. 1981. Selective post-emerergence grass weed control in broad-leaf arable crops. Outlook Agric. 10:385392.CrossRefGoogle Scholar
14. Todd, B. G. and Stobbe, E. H. 1977. Selectivity of diclofop-methyl among wheat, barley, wild oat (Avena fatua), and green foxtail (Setaria viridis). Weed Sci. 25:382385.Google Scholar