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White Bean Sensitivity to Preemergence Herbicides

Published online by Cambridge University Press:  20 January 2017

Nader Soltani ,
Christy Shropshire ,
Todd Cowan  and
Peter Sikkema
Nader Soltani*
Affiliation:
Ridgetown College, University of Guelph, Ridgetown, Ontario, Canada N0P 2C0
Christy Shropshire
Affiliation:
Ridgetown College, University of Guelph, Ridgetown, Ontario, Canada N0P 2C0
Todd Cowan
Affiliation:
Ridgetown College, University of Guelph, Ridgetown, Ontario, Canada N0P 2C0
Peter Sikkema
Affiliation:
Ridgetown College, University of Guelph, Ridgetown, Ontario, Canada N0P 2C0
*
Corresponding author's E-mail: nsoltani@ridgetownc.uoguelph.ca
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Abstract

White bean producers have a limited number of herbicide options available for annual grass and broadleaf weed control. Tolerance of two white bean cultivars to preemergence (PRE) applications of S-metolachlor, S-metolachlor + imazethapyr, flumetsulam + S-metolachlor, cloransulam-methyl, clomazone, clomazone + imazethapyr, and clomazone + S-metolachlor at the maximum labeled rate in soybean (1×) and twice the labeled rate (2×) were studied at two Ontario locations (Exeter and Ridgetown) in 2001 and 2002. S-Metolachlor, clomazone, and clomazone + S-metolachlor generally had no negative effect on plant height, dry weight, maturity, and yield. S-Metolachlor + imazethapyr and clomazone + imazethapyr reduced plant height, dry weight, and yield as much as 21, 42, and 24%, respectively. Flumesulam + S-metolachlor and cloransulam-methyl reduced plant height, dry weight, and yield as much as 39, 58, and 43%, respectively. White beans are tolerant to PRE applications of S-metolachlor, clomazone, and clomazone + S-metolachlor. White beans are sensitive to PRE applications of S-metolachlor + imazethapyr, flumetsulam + S-metolachlor, clomazone + imazethapyr, and cloransulam-methyl.

Keywords

Clomazonecloransulam-methylflumetsulamimazethapyrS-metolachlorsoybean, Glycine max (L.) Merrwhite bean, Phaseolus vulgaris L.Dry beansherbicide tolerancepreemergence herbicideswhite beansDAE, days after emergencePRE, preemergence1× rate, the maximum recommended herbicide labeled rate in soybean2× rate, twice the maximum recommended herbicide labeled rate in soybeans

Information

Type
Research
Information
Weed Technology , Volume 18 , Issue 3 , September 2004 , pp. 675 - 679
Copyright
Copyright © Weed Science Society of America 

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