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Response of Centipedegrass (Eremochloa ophiuroides) to Plant Growth Regulators and Frequency of Mowing

Published online by Cambridge University Press:  12 June 2017

Billy J. Johnson
Billy J. Johnson*
Affiliation:
Dep. Agron., Univ. Ga., Ga. Stn., Griffin, GA 30223-1797
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Abstract

When centipedegrass was unmowed, seedhead suppression generally was better with imazethapyr than with mefluidide either alone or with flurprimidol, but these treatments were not effective for 8 weeks. In several instances, imazethapyr at 0.30 kg ai/ha and MH at 2.2 and 4.5 kg ai/ha severely injured (>30%) centipedegrass. Mowing weekly did not control seedhead development effectively, and none of the plant growth regulator plus mowing treatments effectively suppressed seedheads for 12 weeks. To effectively suppress seedhead production for 8 weeks, centipedegrass treated with mefluidide required mowing 3 weeks after treatment, while centipedegrass treated with imazethapyr or flurprimidol plus mefluidide required mowing at 3 and 6 weeks.

Keywords

Flurprimidol, α-(1-methylethyl)-α-[4-(trifluoromethoxy)phenyl]-5-pyrimidinemethanolimazethapyr, (±)-2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acidMH, 1,2-dihydro-3,6-pyridazinedionemefluidide, N-[2,4-dimethyl-5-[[(trifluoromethyl)sulfonyl] amino] phenyl] acetamidecentipedegrass, Eremochloa ophiuroides (Munro)Hack. ‘Common’ #3 ERLOPFlurprimidolimazethapyrmefluidideMHMon 4620paclobutrazolsethoxydimsulfometuronseedhead suppressionERLOP
Type
Research
Information
Weed Technology , Volume 3 , Issue 1 , March 1989 , pp. 48 - 53
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

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