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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  and
Robert E. Burns
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
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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.

Keywords

Root growthoxadiazonbensulideatrazine2,4-DmecopropdicambaCYNDA
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 33 , Issue 2 , March 1985 , pp. 238 - 243
Copyright
Copyright © 1985 by the Weed Science Society of America 

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References

Literature Cited

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