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Grass Interference in Container-Grown Bailey's Redosier Dogwood (Cornus × baileyi)

Published online by Cambridge University Press:  12 June 2017

Kandy L. Walker and
David J. Williams
Kandy L. Walker
Affiliation:
Dep. Hortic., Univ. Illinois, Urbana, IL 61801
David J. Williams
Affiliation:
Dep. Hortic., Univ. Illinois, Urbana, IL 61801
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Abstract

Experiments conducted for two consecutive years indicated measurable interference of barnyardgrass, large crabgrass, and giant foxtail with container-grown Bailey's redosier dogwood as early as 21 days after transplanting of grass seedlings into the containers. Few differences in interference were seen among the three grass weeds. Grass weed densities ranging from one to six weeds per container reduced the dogwood growth. By the termination of the studies, dogwood shoot dry weight, averaged over all grass weeds, was decreased as much as 72% by five weeds per container. Eight weeks after recommended rates of fenoxaprop, haloxyfop, and ethyl ester of quizalofop were applied to dogwood, no phytotoxicity was apparent. These compounds exhibited selectivity for postemergence use in Bailey's redosier dogwood.

Keywords

Barnyardgrass, Echinochloa crus-galli L. #3 ECHCGlarge crabgrass, Digitaria sanguinalis L. # DIGSAgiant foxtail, Setaria faberi Herrm. # SETFABailey's redosier dogwood, Cornus × baileyifenoxaprop, (±) - 2- [4- [(6-chloro- 2-benzoxazsolyl)oxy] phenoxy] propanoic acidhaloxyfop, 2-[4-([3-chloro-5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxypropanoic acidand ethyl ester of quizalofop, (±)-2-(4-[(6-chloro-2-quinoxalinyl)oxy] -phenoxy] propionic acidFenoxaprophaloxyfopimazaquinquizalofopimazethapyrDIGSAECHCGSETFA

Information

Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 36 , Issue 5 , September 1988, pp. 621 - 624
Copyright
Copyright © 1988 by the Weed Science Society of America 

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References

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