Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/72571
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Type: Journal article
Title: Herbicide application strategies for the control of rigid ryegrass (Lolium rigidum) in wide-row faba bean (Vicia faba) in Southern Australia
Author: Kleemann, S.
Gill, G.
Citation: Weed Technology, 2012; 26(2):284-288
Publisher: Weed Sci Soc Amer
Issue Date: 2012
ISSN: 0890-037X
1550-2740
Statement of
Responsibility: 
Samuel G.L. Kleemann and Gurjeet S. Gill
Abstract: Two field experiments were undertaken at Roseworthy, South Australia from 2006 to 2007 to evaluate the performance of herbicide application strategies for the control of herbicide-resistant rigid ryegrass in faba bean grown in wide rows (WR). The standard farmer practice of applying postsowing PRE (PSPE) simazine followed by POST clethodim to faba bean grown in WR provided consistent and high levels of rigid ryegrass control ($ 96%) and caused a large reduction (P < 0.05) in spike production (ù20 spikes m22) as compared with nontreated control (560 to 722 spikes m22). Furthermore, this herbicide combination resulted in greatest yield benefits for WR faba bean (723 to 1,046 kg ha21). Although PSPE propyzamide used in combination with shielded interrow applications of glyphosate or paraquat provided high levels of rigid ryegrass control ($ 93%), these treatments were unable to reduce ryegrass spike density within the crop row (20 to 54 spikes m22) to levels acceptable for continued cropping. Furthermore, a yield reduction (13 to 29%) was observed for faba bean in treatments with shielded application of nonselective herbicides and could be related to spray drift onto lower leaves. These findings highlight that shielded interrow spraying in WR faba bean could play an important role in the management of rigid ryegrass in southern Australia. However, timing of shielded interrow applications on weed control, crop safety, and issues concerning integration with more effective early-season control strategies require attention. Nomenclature: Clethodim; glyphosate; paraquat; propyzamide; simazine; rigid ryegrass, Lolium rigidum Gaud LORI;faba bean, Vicia faba (L.).
Keywords: Rigid ryegrass; herbicide strategies; wide rows; faba bean; weed control
Rights: Copyright © 2012 BioOne All rights reserved
RMID: 0020120469
DOI: 10.1614/WT-D-11-00030.1
Appears in Collections:Agriculture, Food and Wine publications

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