Lead Researcher (PI): Charles Geddes

Institution: Agriculture & Agri-Food Canada

Total WGRF Funding: $12,375

Co-Funders: Agriculture Development Fund, Manitoba Crop Alliance, Prairie Oat Growers Association, Saskatchewan Pulse Growers, Saskatchewan Wheat Development Commission, Saskatchewan Oilseeds Development Commission

Start Date: 2024

Project Length: 5 Years

Objectives:

1. Determine cross-resistance to PPO-inhibiting (Group 14) herbicides in PPO inhibitor resistant kochia confirmed in SK.
2. Determine cross- or multiple-resistance to other herbicide modes of action in PPO inhibitor (Group 14)- resistant kochia.
3.Determine the mechanism conferring resistance to PPO-inhibiting (Group 14) herbicides in kochia.
4. Assess the impact of timing and implement/depth of soil disturbance on kochia emergence, density, and the soil seedbank.
5. Continue monitoring kochia survey samples for PPO inhibitor (Group 14) resistance across the Canadian prairies.
6. Assess efficacy of alternative herbicides to manage multiple HR kochia prior to crop seeding.
7. Determine the mid/long term utility and sustainability of winter cereals, perennials in crop rotations on multiple herbicides-resistant strategic tillage for kochia management.