Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-20T04:14:12.735Z Has data issue: false hasContentIssue false

Effect of Timing of Spring Applications of Herbicides on Quality of Bermudagrass (Cynodon dactylon) Turf

Published online by Cambridge University Press:  12 June 2017

B. Jack Johnson
Affiliation:
Dep. Agron., Univ. of Georgia, Georgia Stn., Experiment, GA 30212
Robert E. Burns
Affiliation:
Dep. Agron., Univ. of Georgia, Georgia Stn., Experiment, GA 30212

Abstract

Oxadiazon [2-tert-butyl-4(2,4-dichloro-5-isopropoxyphenyl)-δ2-1,3,4-oxadiazolin-5-one] applied to dormant bermudagrass [Cynodon dactylon (L.) Pers. ‘Tifway’ ♯ CYNDA] retarded early foliar growth more than other herbicides evaluated. When bensulide [O,O-diisopropyl phosphorodithioate S-ester with N-(2-mercaptoethyl)benzenesulfonamide] treatments were delayed until after bermudagrass initiated spring growth, foliar growth and quality were generally lower than when the treatments were applied to dormant turf. Retardation of early foliar bermudagrass growth by 2,4-D [(2,4-dichlorophenoxy)acetic acid] + mecoprop {2-[(4-chloro-o-tolyl)oxy] propionic acid} + dicamba (3,6-dichloro-o-anisic acid) was generally the same whether applied to dormant or semidormant turf. This combination of herbicides reduced the quality and density of bermudagrass when applied to growing but not to dormant turf. Atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine] did not retard bermudagrass growth or affect density whether applied to dormant or semidormant turf, but turf quality was slightly lower when atrazine was applied to semidormant turf.

Type
Weed Control and Herbicide Technology
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. Bingham, S. W. 1967. Influence of herbicides on root development of bermudagrass. Weeds 15:363365.Google Scholar
2. Callahan, L. M. 1976. Phytotoxicity of herbicides to Tifgreen bermudagrass green. Weed Sci. 24:9298.Google Scholar
3. DiPaola, J. M. and Beard, J. B. 1979. Spring root loss of warm season turfs. Grounds Maint. 14(4): 26, 30, 32.Google Scholar
4. Johnson, B. J. 1976. Dates of herbicide application for summer weed control in turf. Weed Sci. 24:422424.Google Scholar
5. Johnson, B. J. 1980. Postemergence winter weed control in bermudagrass (Cynodon dactylon) turf. Weed Sci. 28:385392.Google Scholar
6. Johnson, B. J. 1983. Tolerance of bermudagrass (Cynodon dactylon) putting greens to herbicide treatments. Weed Sci. 31:415418.Google Scholar
7. Johnson, B. J. 1983. Response of four bermudagrass (Cynodon dactylon) cultivars to fall-applied herbicides. Weed Sci. 31:771774.Google Scholar