Physical IPM Strategies for Remediating Kochia Patches for Canola, Wheat, and Pulse Production

Term: 3 years, beginning in 2021

Status: Ongoing

Funding Amount: $124, 366

Lead Researcher(s): Dr. Shaun Sharpe (Agriculture and Agri-Food Canada, Saskatoon)

Funding Partners: Agriculture Development Fund - Saskatchewan Ministry of Agriculture

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Project Description

This project aims to evaluate physical control measures for kochia and to better understand the underlying abiotic and biotic ecology within kochia patches to accelerate remediation. Physical control measures for kochia are critically important due to the rapid development and spread of multiple herbicide resistance to Groups 2, 4, and 9 within kochia in western Canada. The main goal of the project is to understand the topography, biotic and abiotic soil conditions which favor kochia invasion and establishment, and to understand the longevity of kochia allelopathic presence within the soil and its impact on soil health to prevent reinvasion. This study will also explore the options for mulching techniques which may return infested areas to full yield potential. Understanding soil bacteria and fungi of these microhabitats will provide insights into microbial taxa that are associated with the decay of seeds, vegetation, and allelochemicals. Large patches of kochia will be identified and targeted for study on producer fields and experimental sites will be established within wheat, canola, and pulse crops.