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Postemergence Control of Large Crabgrass (Digitaria sanguinalis) with Herbicides

Published online by Cambridge University Press:  12 June 2017

William J. Chism  and
S. Wayne Bingham
William J. Chism
Affiliation:
Dep. Plant Pathol., Phys. and Weed Sci., Virginia Polytechnic Inst. & State Univ., Blacksburg, VA 24061-0331
S. Wayne Bingham
Affiliation:
Dep. Plant Pathol., Phys. and Weed Sci., Virginia Polytechnic Inst. & State Univ., Blacksburg, VA 24061-0331
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Abstract

Four field locations were used to compare environmental factors on efficacy of four postemergence grass herbicides in Kentucky bluegrass and bermudagrass turf. Imazaquin, BAS 514, and tridiphane were compared to fenoxaprop-ethyl, a registered herbicide, for postemergence control of large crabgrass. Best large crabgrass control was provided by BAS 514 and fenoxaprop-ethyl. Use of BAS 514 gave equal turf quality, phytotoxicity to the turf, large crabgrass control, and stand compared to fenoxaprop-ethyl. Imazaquin and tridiphane reduced turf quality and were phytotoxic to both turf types, and did not control large crabgrass adequately.

Keywords

Fenoxaprop-ethyl, (±)-2-[4-[(6-chloro-2-benzoxazolyl)oxy]phenoxy]propanoic acidimazaquin, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-4-oxo-1H-imidazol-2-yl]-3-quinolinecarboxylic acidBAS 514, 3,7-dichloro-8-quinolinecarboxylic acidtridiphane, 2-(3,5-dichlorophenyl)-2-(2,2,2-trichloroethyl)oxiranebermudagrass, Cynodon dactylon (L.) Pers.large crabgrass, Digitaria sanguinalis (L.) Scop. # DIGSAKentucky bluegrass, Poa pratensis L.Environmental effectscrabgrass control
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 39 , Issue 1 , March 1991 , pp. 62 - 66
Copyright
Copyright © 1991 by the Weed Science Society of America 

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