Developing decision support tools for effective herbicide use in the face of herbicide resistance

Term: 2 years, beginning in 2021

Status: Ongoing

Funding Amount: $87,550

Lead Researcher(s): Dr. Breanne Tidemann (Agriculture and Agri-Food Canada, Lacombe)

Funding Partners: Alberta Wheat Commission, Manitoba Wheat and Barley Growers Association

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Project Description

Herbicide resistant weeds continue to make weed management more challenging in western Canada. A key strategy in both managing and delaying the evolution of herbicide resistant weeds is the use of multiple effective modes of action(MEMOA) du ring herbicide applications. While this is a simple concept in theory, there are many complicating factors that make determination of whether MEMOA are being used on different weed species more difficult. This project aims to develop a decision support tool to aid producers in determining what products would constitute MEMOA for target weeds in their field. In addition a second tool would be developed to help identify the potential risk of herbicide resistance evolving based on a four year crop rotation and the resulting herbicide choices. A tool of this type has been created for Wyoming and Nebraska.