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Herbicide Selection and Application Timing for Control of Cressleaf Groundsel (Packera glabella)

Published online by Cambridge University Press:  20 January 2017

Jeremy T. Lake  and
Aaron G. Hager
Jeremy T. Lake
Affiliation:
Department of Crop Science, University of Illinois, Urbana, IL 61801
Aaron G. Hager*
Affiliation:
Department of Crop Science, University of Illinois, Urbana, IL 61801
*
Corresponding author's E-mail: hager@uiuc.edu.
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Abstract

Field experiments were conducted from 2004 through 2006 to evaluate cressleaf groundsel control following fall or early-spring preplant herbicide applications. Glyphosate, glyphosate + imazethapyr, glyphosate + 2,4-D ester, paraquat, paraquat + simazine, chlorimuron + tribenuron, and pendimethalin + glyphosate + 2,4-D ester applied in the fall controlled at least 93% of the cressleaf groundsel. Glyphosate, glyphosate + imazethapyr, glyphosate + 2,4-D ester, chlorimuron + tribenuron, and pendimethalin + glyphosate + 2,4-D ester applied in the spring provided at least 94% control of the cressleaf groundsel. Chlorimuron + tribenuron provided at least 98% control, regardless of application timing. These results indicate that herbicides applied in the fall or early spring can control cressleaf groundsel. However, certain herbicides provide greater control when applied in the fall compared with spring.

Keywords

Atrazinechlorimuronclomazonedicambadiflufenzopyrflumioxazinglyphosateimazaquinimazethapyrmesotrioneparaquatpendimethalinquincloracsimazinetribenuron2,4-D estercressleaf groundselPackera glabella (Poir.) C. Jeffrey SENGLFall appliedno tillspring appliedweedwinter annual
Type
Weed Management—Major Crops
Information
Weed Technology , Volume 23 , Issue 2 , June 2009 , pp. 221 - 224
Copyright
Copyright © Weed Science Society of America 

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