Crop Report – Week of September 18th, 2023

The headlands of this field received a fall application to control dandelions, making for a nice seed bed to plant into. The rest of the field had no fall management, and the dandelion pressure is significant and will take much longer to control now.

Three tips for weed management this fall. Reflecting on some of the weed control issues that came up this past spring, below are three key items where management activities this fall can significantly improve control and/or financial return next season. 1. Fall management provides better dandelion control. In the fall, resource allocation of perennial weeds […]

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Crop Report – Week of July 31st, 2023

Figure 1. Cover crop biomass harvested from a 0.25m2 area for tissue analysis.

Managing Cover Crop Nitrogen / Residue Breakdown Across Ontario, wheat harvest continues, opening the best window for planting cover crops in most field crop rotations. You can find more information on the  2023 winter wheat quality update and achieving success with cover crops after wheat at But can those cover crops be managed to […]

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Crop Report – Week of July 24th, 2023

Injecting anaerobic digestate after wheat harvest into a growing cover crop to maximize soil health benefits and economic value of nutrients.

Getting to Know your Manure with a Manure Analysis The “magical” qualities of manure and organic amendments for providing long-term benefits have been well documented, especially for maintaining and improving soil organic matter. Sourcing off farm manure and organic amendments has become more difficult and expensive with the increased interest in improving soil health, therefore […]

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Crop Report – Week of July 3rd, 2023

Levels of dimethoate effectiveness in two-spotted spider mite populations collected in 31 soybean fields in 2021 and 2022.

Dimethoate Resistant Two-Spotted Spider Mite Populations in Ontario Soybeans Results from bioassays conducted on two-spotted spider mite (TSSM) populations collected in soybean fields across Ontario show the prevalence of dimethoate (Cygon or Lagon) resistance is high in some areas. Through a collaborative project with Dr. Vojislava Grbic, Professor at Western University, Dr. Ian Scott at […]

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Crop Report – April 13, 2023

Figure 2. Waterhemp seedlings (photo by Mike Cowbrough, OMAFRA)

Spring conditions have arrived across Ontario this week and some tillage and field preparation has started in fields with light-textured soils. Manure application is also underway. Taking a manure sample at the time of application is recommended and will help fine-tune fertilizer needs. Several heavy rainfall events in early April have some producers concerned about […]

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2022 Corn Seasonal Summary

Black tar spot fungal structures (stromata) on leaves in a field near Ilderton in late September 2022.

Planting In March 2022, Statistics Canada estimated Ontario farmers intended to plant 2.3 million acres of grain corn, 6% higher than the 5-year (2017-2021) average seeded acres of 2.16 million acres (OMAFRA Crop Statistics). Spring arrived slow. Lingering snows and rain limited field work on all but the lightest soils in late April. A very […]

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