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Understanding auxinic herbicide resistance in kochia and staying ahead of what’s next

Crop Types
  • Whole Farm
Collaborating Locations

Background

The proposed research will help farmers and agricultural industry understand which herbicide active ingredients and usage scenarios remain effective for management of multiple-HR kochia. It will also help them understand how auxinic herbicide resistance in kochia is inherited, how quickly it will spread, and what can be done to mitigate this spread. This work will also develop a new surveillance program to stay ahead of PPO inhibitor resistance in Canadian kochia populations.

Objectives

  1. Conduct a baseline survey of PPO inhibitor-resistant kochia in western Canada.
  2. Assess kochia populations for cross-resistance to other synthetic auxin herbicides, herbicide mixtures, and usage windows/li>
  3. Assess the efficacy of a potential ""new"" (old) herbicide, dichlorprop, for management of auxinic herbicide-resistant kochia
  4. Work toward determining the mechanisms of auxinic herbicide resistance in kochia in western Canada
  5. Determine whether dicamba or fluroxypyr resistance traits in kochia confer fitness penalties.

Project Details

Principal Investigator
Dr. Charles Geddes
Project Status
Ongoing
Start Date
2020
Completion Date
2025
Funding Partners
SBDC, ADF, AWC, SPG, SWDC
Total Project Cost
445800
MCA Funding
13900

Field Issues

  • Weeds

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