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Triazine-Resistant Common Lambsquarters (Chenopodium album) Control in Corn with Preemergence Herbicides

Published online by Cambridge University Press:  20 January 2017

Andrew J. Chomas  and
James J. Kells
Andrew J. Chomas
Affiliation:
Department of Crop and Soil Sciences, Michigan State University, East Lansing, MI 48824
James J. Kells*
Affiliation:
Department of Crop and Soil Sciences, Michigan State University, East Lansing, MI 48824
*
Corresponding author's E-mail: [email protected]
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Abstract

Triazine-resistant common lambsquarters (TR-CHEAL) is a widespread weed problem in the northcentral United States. Field studies were conducted from 1995 to 1997 to determine the efficacy and consistency of metolachlor, pendimethalin, and acetochlor applied preemergence (PRE) for control of TR-CHEAL in corn. Pendimethalin provided greater (98%) and more consistent control of TR-CHEAL than metolachlor (66%) or acetochlor (86%). Studies were conducted from 1998 to 2000 to examine the potential of isoxaflutole, flumetsulam, and rimsulfuron plus thifensulfuron for control of TR-CHEAL in corn. In 1999 and 2000, isoxaflutole (35 g ai/ha), flumetsulam (35 g ai/ ha), and rimsulfuron plus thifensulfuron (26 g ai/ha) provided 98% or greater control of TR-CHEAL. In 1998 when rainfall was limited after application, isoxaflutole (70 g ai/ha) and flumetsulam (70 g ai/ha) provided 65 and 55% control, respectively, and rimsulfuron plus thifensulfuron (26 g ai/ha) provided 55% control. Results indicate that control of TR-CHEAL with currently labeled PRE herbicides is possible.

Keywords

Acetochlorflumetsulamisoxaflutolemetolachlorpendimethalinrimsulfuronthifensulfurontriazinecommon lambsquarters, Chenopodium album L. # CHEALcorn, Zea mays L.Herbicide resistanceOM, organic matterPOST, postemergencePRE, preemergenceTR-CHEAL, triazine-resistant common lambsquarters
Type
Research
Information
Weed Technology , Volume 18 , Issue 3 , September 2004 , pp. 551 - 554
Copyright
Copyright © Weed Science Society of America 

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References

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