GWC11
University of Nebraska—Lincoln Extension GWC9 Biology and Management of Horseweed

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The Glyphosate, Weeds and Crops Series

The Glyphosate, Weeds and Crops Series
Biology and Management of Common Lambsquarters

GWC 11

Heavy reliance on glyphosate for weed control has resulted in a serious concern for the long-term viability of this weed management tool and the development of weeds resistant to glyphosate.

“Common lambsquarters (Chenopodium album L.) is a weed found in many agricultural systems. Its resistance to photosystem II inhibitors (triazines), ALS-inhibitors, and now suspected resistance to glyphosate make this weed a serious threat to agricultural production systems across North America,” the authors write in the introduction. Herbicide resistance in common lambsquarters was identified as early as the 1970s with the discovery of a population in Ontario, Canada with triazine resistance. More recently, common lambsquarters populations resistant to ALS-inhibitors have been identified in Michigan, Ohio and Ontario.

This publication addresses the importance, biology and some characteristics of common lambsquarters that make it a particular problem for agronomic cropping systems and provides management recommendations to slow the development and spread of herbicide-resistant populations. It was written by Extension specialists from The Pennsylvania, Michigan, and Ohio state universities and reviewed by a national team of Extension specialists. It was published by Purdue University as part of the Glyphosate, Weeds and Crops Series.

To order

Biology and Management of Common Lambsquarters (GWC11) is available from your local UNL Extension office or from the UNL Extension Publications Warehouse. In addition, a pdf copy is available on the Purdue University Extension Web site.

Extension is a Division of the Institute of Agriculture and Natural Resources at the University of Nebraska–Lincoln cooperating with the Counties and the United States Department of Agriculture.

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