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Response of Centipedegrass (Eremochloa ophiuroides) to Plant Growth Regulators

Published online by Cambridge University Press:  12 June 2017

B. Jack Johnson
B. Jack Johnson*
Affiliation:
Univ. Ga., Georgia Stn., Griffin, CA 30223-1797
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Abstract

CGA 163935, paclobutrazol, and paclobutrazol plus mefluidide were evaluated for their growth regulating effect on centipedegrass over 3 yr. Paclobutrazol did not effectively suppress seedhead production or vegetative growth. Paclobutrazol plus mefluidide at 1.1 + 0.3 kg ai ha–1 in each of two applications at a 2-wk interval suppressed seedhead development 77% (average of 3 yr) at 10 wk after the initial treatment without severe injury or loss of stand, but duration of vegetative growth suppression was variable (0 to 6 wk). CGA 163935 applied at 0.4 kg ai ha–1 and followed by 0.2 kg ai ha–1 2 wk later suppressed vegetative growth of mowed and nonmowed centipedegrass for 10 wk, while suppressing seedhead production for 3 to 5 wk. CGA 163935 caused severe injury and stand loss of centipedegrass.

Keywords

CGA 163935, 4(cyclopropyl)-α-hydroxy-methylene)-3,5-dioxo-cyclohexanecarboxylic-acid ethylestermefluidide, N-[2,4-dimethyl-5-[[(trifluoromethyl)sulfonyl]amino]phenyl]acetamidepaclobutrazol, (±)-(R∗ R∗) β-[(4-chlorophenyl)methyl]-α-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-ethanolcentipedegrass, Eremochloa ophiuroides (Munro) Hack. ‘Common’ ♯ ERLOPSeedhead suppressionturf injuryvegetative suppressionCGA 163935mefluididepaclobutrazolERLOP
Type
Research
Information
Weed Technology , Volume 6 , Issue 1 , March 1992 , pp. 113 - 118
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

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