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

Screen Shot 2016-08-09 at 10.36.20 PM

Cashcropper App

Screen Shot 2016-08-09 at 11.35.29 PM

Steel in the field

Screen Shot 2016-08-09 at 10.53.01 PM

Response of oats (Avena sativa) to atrazine

Photo by: Byford Farms (Prince Edward County, August 2016)
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