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Herbicides for Desiccating Dallisgrass (Paspalum dilatatum)–Bermudagrass (Cynodon dactylon) Pasture Sod Prior to Overseeding with Annual Ryegrass, (Lolium multiflorum)

Published online by Cambridge University Press:  20 January 2017

Gerald W. Evers
Gerald W. Evers*
Affiliation:
Texas Agricultural Experiment Station, P.O. Box 200, Overton, TX 75684
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Abstract

Autumn desiccation of warm-season perennial grasses is one method to enhance the establishment and early production of overseeded cool-season annuals. Potential herbicides were compared with paraquat, glyphosate, and dalapon to desiccate a dallisgrass–bermudagrass sod for overseeding annual ryegrass over a 2-yr period. Fluazifop-P at ≥ 0.14 kg/ha, glufosinate at ≥ 1.12 kg/ha, and haloxyfop at ≥ 0.07 kg/ha provided good dallisgrass desiccation and ryegrass yields similar to those with dalapon and glyphosate. Dallisgrass recovery was inversely related to desiccation rating for all treatments except for paraquat. None of the herbicide treatments had the desired combination of acceptable dallisgrass desiccation, improved early ryegrass production, and acceptable dallisgrass recovery.

Keywords

Dalaponfluazifop-Pglufosinateglyphosatehaloxyfopparaquatsethoxydimannual ryegrass, Lolium multiflorum Lam. ‘Gulf’bermudagrass, Cynodon dactylon (L.). Persdallisgrass, Paspalum dilatatum PoirDesiccantoverseeding
Type
Note
Information
Weed Technology , Volume 16 , Issue 1 , March 2002 , pp. 235 - 238
Copyright
Copyright © Weed Science Society of America 

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