Crop response to herbicides applied prior to and after emergence.

The herbicide identification training plot at the Elora Research Station typically contains over 30 herbicide treatments sprayed across over 20 different plant species.

Problem Weed Guide


Has the adoption of genetically engineered (GE) crops resulted in more herbicide resistant weeds in Ontario?


Should 2,4-D be used to control weeds in emerged winter wheat during the fall?

Figure 2. Winter wheat head distortion as a result of fall applied 2,4-D. Source: Dr. P.H. Sikkema, University of Guelph (Ridgetown Campus).

Controlling common burdock


Weed ID Guide for Ontario Crops


Fall Weed Management Tips

The spring following a fall application of glyphosate (left) compared to no application (right)

Annual rye-grass and clover sensitivity to soil applied corn herbicides

Corn shown in October with a inter-seeded annual rye-grass and crimson clover that was seeded at the 7-8 leaf over stage of corn

Herbicide Resistant Weed Maps


Weed Inspectors Conference 2017


Agriculture apps worth checking out

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Cashcropper App

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Steel in the field

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