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Establishment and Rooting of Zoysiagrass (Zoysia japonica) as Affected by Preemergence Herbicides

Published online by Cambridge University Press:  12 June 2017

Jack D. Fry ,
Peter H. Dernoeden  and
J. Jack Murray
Jack D. Fry
Affiliation:
Dep. Agron., Univ. Maryland, College Park, MD 20742
Peter H. Dernoeden
Affiliation:
Dep. Agron., Univ. Maryland, College Park, MD 20742
J. Jack Murray
Affiliation:
U.S. Dep. Agric./ARS, Beltsville, MD 20705
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Abstract

Preemergence applications of herbicides were evaluated for their effect on establishment of zoysiagrass (Zoysia japonica Steud.) with competition from either smooth crabgrass [Digitaria ischaemum (Schreb.) Muhl. # DIGIS] or goosegrass [Eleusine indica (L.) Gaertn. # ELEIN]. When ‘Meyer’ and ‘Belair’ zoysiagrass plugs were grown in sand and treated in the greenhouse, none of the herbicides reduced root weight or length. When plugs were grown in a Sassafrass sandy loam, bensulide {O,O-bis(1-methylethyl)-S-[2-[(phenylsulfonyl)amino] ethyl] phosphorodithioate} and simazine (6-chloro-N,N′-diethyl-1,3,5-triazine-2,4-diamine) reduced root weight, and simazine reduced root length of Belair, but not Meyer. In smooth crabgrass-infested field plots, more stolons were produced from Meyer plugs treated with simazine, oxadiazon {3-[2,4-dichloro-5-(1-methylethoxy)phenyl]-5-(1,1-dimethylethyl)-1,3,4-oxadiazol-2-(3H)-one}, and siduron [N-(2-methylcyclohexyl)-N′-phenylurea] than plugs treated with bensulide, metribuzin [4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one], or the untreated control. At the end of two growing seasons, metribuzin-treated plots had significantly less zoysiagrass than other plots. Oxadiazon, DCPA (dimethyl tetrachloroterephthalate), and siduron enhanced the field establishment rate where Meyer zoysiagrass was competing with high populations of smooth crabgrass.

Keywords

BenefinbensulideDCPAoxadiazonsiduronsimazinemetribuzinDigitaria ischaemumEleusine indicaDIGISELEIN
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 34 , Issue 3 , May 1986 , pp. 413 - 418
Copyright
Copyright © 1986 by the Weed Science Society of America 

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References

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