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

Author: Mike Cowbrough

Inter-seeding cover crops

AGRONOMIC INFORMATION FROM ONTARIO'S CROP SPECIALISTS

April 2024 - WITH A NARROW WINDOW TO ESTABLISH COVER CROPS after corn harvest, some farmers have experimented with inter-seeding cover crops when corn is at the 6-8 leaf stage. However, the sensitivity of different cover crops to…
Managing bluegrass

AGRONOMIC INFORMATION FROM ONTARIO'S CROP SPECIALISTS

April 2023 - BLUEGRASS COMPETITION IN winter wheat can result in up to 50 per cent yield losses. Over the past two seasons, three herbicides (Simplicity GoDri, Varro and Axial) have shown promising results and have prevented significant…
Vetch control in corn

AGRONOMIC INFORMATION FROM ONTARIO'S CROP SPECIALISTS

April 2022 - HISTORICALLY, POST-EMERGENT applications of Callisto + Aatrex 480, dicamba (e.g. Engenia/Xtendimax) or Distinct have provided the best top-growth control of tufted vetch (Vicia cracca) in corn. A trial was conducted in 2021 to evaluate tufted…
Web Special

Weed control tips

FALL MANAGEMENT 2021

October 2021 - Many farmers have witnessed the value of applying herbicides in the fall for the management of winter annual and biennial/perennial weeds (Figure 1). Often, they will see both a reduction in density and a delay…
Cropside: Maximizing control

AGRONOMIC INFORMATION FROM ONTARIO'S CROP SPECIALISTS

April 2021 - LAMB’S-QUARTERS HAS consistently been identified as the most abundant and problematic weed affecting field crop production in Ontario. Yet the Pest Management Regulatory Agency database contains hundreds of herbicides that list lamb’s-quarters as a susceptible…
Cropside: Resistance test

AGRONOMIC INFORMATION FROM ONTARIO'S CROP SPECIALISTS

June 2020 - ONTARIO FARMERS WILL now be able to find out, in a matter of days, if a weed in their field is herbicide resistant thanks to a new service offered by Harvest Genomics Inc, a new…
Cropside: Specialty control

AGRONOMIC INFORMATION FROM ONTARIO'S CROP SPECIALISTS

February 2019 - TEN YEARS OF public research trials evaluating weed control in non-GMO soybeans at the University of Guelph have demonstrated that the key to success is to start with a soil applied herbicide program that has…
Glyphosate-resistant Canada fleabane

MANAGEMENT WITH COVER CROPS AND TILLAGE

December 2018 - DR. CLARENCE SWANTON (University of Guelph) used to say that based on research he did in the 1980s, one should not expect to control weeds with cover crops. Their utility was in preventing soil erosion…
Cropside: Cleavers

AGRONOMIC INFORMATION FROM ONTARIO'S CROP SPECIALISTS

February 2018 - CLEAVERS IN A field of winter wheat are a pain and I am often asked ‘what is the best way to get rid of this weed in winter wheat?’. I can’t think of a redeeming…
Cropside: Perennial sow-thistle

AGRONOMIC INFORMATION FROM ONTARIO'S CROP SPECIALISTS

March 2017 - WITH LATERAL ROOTS that go as deep as two metres and seed production approaching 10,000 per plant, perennial sow-thistle is extremely difficult to eradicate. To minimize its impact, management that reduces top growth will lower…