Resistance Recommendations

Our agronomists share their recommendations for overcoming the herbicide-resistance challenges they’ve seen on farms and in the field.

If you’re facing tough weeds and herbicide resistance on your farm, you’re not alone. Get advice from your local Cargill agronomist. Use the filters below to sort challenges and recommendations by your province.


Manage Group 1 and Group 2 resistant wild oats.

Farmers are using Avadex again, plus tank-mixing multiple modes of action in their burnoff.

Dealing with clubroot and herbicide-resistance in canola.

Canola:snow:canola can increase the risk for resistant weed developing, as well as diseases like clubroot. We need to lengthen crop rotations and add more crop diversity to battle both issues.


Edge granular herbicide helps fight weed resistance, beneficial to be incorporated twice.

Applying Edge in the fall with a Valmar on a harrow drawbar, harrowing once in fall and once in spring before seeding is enough incorporation for effective weed control.

Group 2 weed resistance in pulse crops like lentils.

We’re recommending a tank mix of glyphosate and Heat® for pre-seed burnoff. For in-crop control of Group 2 resistant wild mustard, we’re recommending Sencor®. Heat® is a registered trademark of BASF. Sencor® is a registered trademark of Bayer CropScience. 

Managing Group 2 resistant weeds in tight rotations.

In the cereal year of your crop rotation, include products with dicamba to control any Group 2 and 9 resistant kochia.

Straight glyphosate burnoff increases selection pressure for resistant weeds.

Add a tank mix partner with glyphosate so at least two modes of action are working on target weeds.

With the price of pulse crops this year, it’s tough to talk cereals right now.

Add a tank mix partner with your pre-seed glyphosate burnoff and space out your rotations.