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Penetration, Translocation, and Toxicity of Glyphosate in Bermudagrass (Cynodon dactylon)

Published online by Cambridge University Press:  12 June 2017

C.H. Fernandez
Affiliation:
Dep. Bot., Univ. of California, Davis, CA 95616
D.E. Bayer
Affiliation:
Dep. Bot., Univ. of California, Davis, CA 95616

Abstract

A 3.6 g/L solution of glyphosate [N-(phosphonomethyl)glycine] applied to selected parts of bermudagrass [Cynodon dactylon (L.) Pers.] shoots did not kill the entire plant. However, phototoxicity increased as more parts of the plant were treated. No differences were observed when solutions of 3.6 and 5.4 g/L glyphosate were applied at 94 and 373 L/ha. However, greater herbicide efficacy was obtained when 1.8 g/L solution was applied at the higher volume. Translocation of this herbicide appeared to follow the typical source-sink relationship. A 7.2 g/L solution of glyphosate applied at 373 L/ha was necessary to kill the plant.

Type
Research Article
Copyright
Copyright © 1977 by the Weed Science Society of America 

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References

Literature Cited

1. Ashton, F.M. and Crafts, A.S. 1973. Mode of action of herbicides. John Wiley and Sons Inc., New York, 504 pp.Google Scholar
2. Baird, D.D., Upchurch, R.P., Homesley, W.B., and Franz, J.E. 1971. Introduction of a new broadsprectrum postemergence herbicide class with utility for herbaceous perennial weed control. Proc. North Cent. Weed Control Conf. 26:6468.Google Scholar
3. Baird, D.D. and Upchurch, R.P. 1972. Postemergence characteristics of a new herbicide Mon-0468 on Johnsongrass. Proc. South. Weed Sci. Soc. 25:113116.Google Scholar
4. Baird, D.D. and Begeman, G.F. 1972. Post-emergence characterization of a new quackgrass herbicide. Proc. Northeast. Weed Sci. Soc. 26:100103.Google Scholar
5. Bischof, F., Koch, W., Majumdar, J.C., and Schwerdtle, F. 1970. Retention, Penetration und Verlust von Phenmedipham in Abhängigkeit von einigen Faktoren. Z. Pflanzenkr. (Pflanzenpathol.) Pflanzenschutz, Sonderh. 5:95102.Google Scholar
6. Blackman, G.E., Bruce, R.S., and Holly, K. 1958. Studies in the principles of phytotoxicity. V. Interrelationships between specific differences in spray retention and selective toxicity. J. Exp. Bot. 9:175205.CrossRefGoogle Scholar
7. Brockman, F.E., Duke, W.B., and Hunt, J.F. 1973. Agronomic factors influencing the effectiveness of glyphosate for quackgrass control. Proc. Northeast. Weed Sci. Soc. 27:2129.Google Scholar
8. Caseley, J. 1972. The effect of environmental factors on the performance of glyphosate against Agropyron repens . Proc. Brit. Weed Control Conf. 11:641647.Google Scholar
9. Day, B.E. and Jordan, L.S. 1961. Spray retention by Bermudagrass. Weeds 9:351355.Google Scholar
10. Friedman, T. and Horowitz, M. 1970. Phytotoxicity of subterranean residues of three perennials weeds. Weed Res. 10:382385.Google Scholar
11. Gossett, B.J. and Rieck, C.E. 1970. Performance of chloroxuron as influenced by spray additives, spray volumes, and early morning versus late afternoon applications. Proc. South. Weed Sci. Soc. 23:163.Google Scholar
12. Hale, C.R. and Weaver, R.J. 1962. The effect of developmental stage on direction of translocation of photosynthate in Vitis vinifera . Hilgardia 33:89131.Google Scholar
13. Holly, K. 1964. Herbicide selectivity in relation to formulation and application methods. Pages 423464 in Audus, L.J., eds. The Plant Physiology and Biochemistry of Herbicides. Academic Press, New York.Google Scholar
14. Horowitz, M. 1972. Development of Cynodon dactylon (L.) Pers. Weed Res. 12:207220.CrossRefGoogle Scholar
15. Lange, A.H. and Kempen, H.M. 1969. Comparison of several herbicides for Bermudagrass control. Res. Prog. Rep., West. Soc. Weed Sci. pp 35.Google Scholar
16. Lange, A. 1973. A comparison of the movement of MSMA and glyphosate in Johnsongrass. Res. Prog. Rep., West. Soc. Weed Sci. pp. 1314.Google Scholar
17. Lange, H.A., Elmore, C.L., Fischer, B.B., Swanson, F.H., and Donaldson, D.R. 1973. Glyphosate for perennial weed control in trees and vines. Coop. Ext. Serv. MA-63, Univ. of Calif. 20 pp.Google Scholar
18. Lee, G.A. 1973. Influence of time of application and tillage on the herbicide performance of glyphosate. Proc. West. Soc. Weed Sci. 26:3738.Google Scholar
19. Leonard, O.A. and Weaver, R.J. 1961. Absorption and translocation of 2,4-D and amitrole in shoots on the tokay grape. Hilgardia 31:327368.CrossRefGoogle Scholar
20. Smith, L.W., Foy, C.L., and Bayer, D.E. 1966. Structure-activity relationships of alkylphenol ethylene oxide ether non-ionic surfactants and three water-soluble herbicides. Weed Res. 6:233242.Google Scholar
21. Spurrier, E.C. 1973. Glyphosate–a new broad spectrum herbicide. PANS 19:607612.Google Scholar