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Bermudagrass [Cynodon dactylon (L.) Pers.] and Zoysiagrass (Zoysia japonica) Establishment After Preemergence Herbicide Applications

Published online by Cambridge University Press:  20 January 2017

Matthew J. Fagerness ,
Fred H. Yelverton  and
Richard J. Cooper
Matthew J. Fagerness*
Affiliation:
Department of Horticulture, Forestry, and Recreation Resources, Kansas State University, Manhattan, KS 66506-5507
Fred H. Yelverton
Affiliation:
Crop Science Department, North Carolina State University, 100 Derieux Street, Raleigh, NC 27695-7620
Richard J. Cooper
Affiliation:
Crop Science Department, North Carolina State University, 100 Derieux Street, Raleigh, NC 27695-7620
*
Corresponding author's E-mail: [email protected]
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Abstract

Preemergence (PRE) herbicides may affect the ability to reestablish warm-season turfgrasses in winter-injured areas. Experiments were conducted in 1996 and 1997 to evaluate the effects of fall or spring applications of six PRE herbicides on the vegetative establishment of Tifway bermudagrass, and Meyer and El Toro zoysiagrass. PRE herbicides were applied at the recommended rates during the fall of 1995 and 1996 and at recommended or reduced rates during the spring of 1996 and 1997. Oxadiazon, benefin plus trifluralin, or oryzalin did not inhibit Tifway bermudagrass or zoysiagrass sprig establishment. Fall applications of prodiamine and dithiopyr at full rates suppressed Tifway bermudagrass establishment as much as 25%, but recovery was evident by the end of the growing season. Reduced spring rates of prodiamine diminished its suppressive effects on Tifway establishment. Zoysiagrass establishment was suppressed as much as 20% by full or reduced rates of prodiamine but was less affected by dithiopyr. Pendimethalin had lesser and briefer suppressive effects than prodiamine and dithiopyr had on either species. Results suggested that avoidance of or reduced rates of prodiamine or dithiopyr may be warranted in areas prone to winter injury.

Keywords

Benefindithiopyroryzalinoxadiazonpendimethalinprodiaminetrifluralinbermudagrass, Cynodon transvaalensis Burtt-Davey × C. dactylon (L.) Pers. ‘Tifway’zoysiagrass, Zoysia japonica L. ‘Meyer’, ‘El Toro’Application timingvegetative turfgrass establishmentPOST, postemergencePRE, preemergenceWAE, weeks after establishment
Type
Research
Information
Weed Technology , Volume 16 , Issue 3 , September 2002 , pp. 597 - 602
Copyright
Copyright © Weed Science Society of America 

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References

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