Ontario Grain Farmer Magazine is the flagship publication of Grain Farmers of Ontario and a source of information for our province’s grain farmers.

Grain Farmers of Ontario

Agronomy

Field Observations

SPRING 2026

April 2026 - April 30, 2026 Planting has begun on limited acres across the province so far this spring. Winter wheat continues to grow, but there have been some challenges in getting products applied. Corn As the potential…

Decoding weed pressure in corn

Peter Sikkema shares insights from decades of research on weed competition, resistance, and the economics of control

April 2026 - Long-term trials show corn yield loss from weeds can swing dramatically, even in the same field. Understanding weed biology, species pressure, and emergence timing is key to managing the risk. For more than 30 years,…
Dealing with corn’s most persistent pest

Keeping corn rootworm in check

March 2026 - Livestock-dense counties, including Huron, Perth, Middlesex, and Oxford, are among those dealing with the heaviest corn rootworm infestation. Dr. Jocelyn Smith has a favourite insect, and it’s one Ontario corn growers love to hate. As…
How a UK farmer grows 235-bushel winter wheat

Lincolnshire farmer Mark Stubbs produces bin-busting yields by driving soil organic matter

March 2026 - Yield gains in winter wheat can be achieved by experimenting on the farm and treating wheat with as much care as more lucrative crops such as corn and soybeans. Tight row spacing, high plant populations,…

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