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Control of Annual Bluegrass (Poa annua) in Overseeded Bermudagrass (Cynodon spp.) Golf Greens

Published online by Cambridge University Press:  12 June 2017

Ray Dickens*
Affiliation:
Dep. Agron. and Soils, Auburn Univ. Agric. Exp. Stn., Auburn, AL 36830

Abstract

Ethofumesate, [(+)-2-ethoxy-2,3-dihydro-3,3-dimethyl-5-benzofuranyl methanesulfonate] applied preemergence provided selective control of annual bluegrass (Poa annua L.) in perennial ryegrass (Lolium perenne L.) overseeded on dormant bermudagrass [Cynodon dactylon (L.) Pers. X C. transvaalensis Burtt Davy ‘Tifdwarf’] golf greens. Control in excess of 95% was obtained with single applications at the 2.2 kg/ha rate in 2 of 3 yr, but multiple applications were required when ethofumesate was applied at 1.1 kg/ha or less. Ethofumesate caused temporary cessation of bermudagrass growth when applied in the fall. February applications slowed the spring transition to bermudagrass.

Type
Research Article
Copyright
Copyright © 1979 by the Weed Science Society of America 

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References

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