Agronomy and Horticulture, Department of

 

Department of Agronomy and Horticulture: Faculty Publications

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Document Type

Article

Date of this Version

10-26-2018

Citation

Research Report: Prevalence and Mechanism of Atrazine Resistance i... https://cropwatch.unl.edu/2018/research‐atrazine‐resistance‐waterhemp Pages 1-4

Comments

Copyright 2018 Research Report: Prevalence and Mechanism of Atrazine Resistance

Abstract

Waterhemp is a troublesome summer annual broadleaf weed species that has evolved resistance to glyphosate and other herbicide sites of action (SOA) in Nebraska, including to groups 2 (i.e., Classic, Pursuit, FirstRate), 4 (i.e., 2, 4-D), 5(i.e., atrazine) and 27 (e.g., Callisto, Laudis). The overall objectives of this study were to

  1. Evaluate the eficay of PRE applied atrazine, metribuzin and sulfentrazone to control Nebraska waterhemp populations;
  2. Evaluate the efficacy of POST applied atrazine to control Nebraska waterhemp populations; and
  3. Determine the mechanism of atrazine resistance in Nebraska waterhemp populations.

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