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If kochia isn't the worst weed in Western Canada, it's close. It's widely adaptable and prolific. Plus, herbicide resistance is making the situation even worse.

A kochia plant can spread up to 25,000 seeds. If left uncontrolled in the fall, the stem of the mature kochia plant breaks off and tumbles across the Prairies, spreading seeds up to several kilometres.

Average yield loss from kochia pressure in spring wheat can be 20% and much worse in soybeans and corn. Kochia emerges early and can continue to emerge throughout the growing season. That early emergence means the weed is competing with the crop during the critical weed-free period when significant yield loss can occur.

If that's not bad enough, there are kochia populations in Western Canada resistant to Groups 2, 4, and 9 (glyphosate). Since kochia can cross- and self-pollinate, a population of kochia can become resistant to herbicides quickly.

We've created articles that help you understand kochia better and outlined strategies to combat it here.

Kochia Management Strategies and Resources document title pageOur new publication, Kochia: Management Strategies and Resources, gives you a 360-degree view of this pressing agronomic challenge. Learn from top scientists and the most current research, not only why kochia is thriving and spreading, but which tactics show the most promise in managing it on your farm.

Download here

Pre-seed Kochia Products

Aim EC herbicide A strong Group 14 glyphosate partner for quick, enhanced burnoff of hard-to-control weeds including kochia (Group 2, 4 and 9 resistant), flixweed, lamb’s-quarters, redroot pigweed and cleavers (Group 2 and 4 resistant). Aim® EC herbicide adds a novel mode of action to glyphosate for resistance management.

Authority 480 logo
Consistent, pre-emergent extended Group 14 activity to control kochia, redroot pigweed, lamb’s-quarters, cleavers*, wild buckwheat and more. Apply pre-seed or up to 3 days after seeding wheat, field peas, flax and more. 

Command Charge herbicide
Uses two modes of action – Groups 13 and 14 – to deliver fast control of emerged broadleaf weeds including kochia, volunteer canola, lamb’s-quarters and flixweed and extended activity on flushing cleavers and chickweeds. 

 

Express FX herbicide
Provides three modes of action, Groups 2, 4 and 9 when combined with glyphosate for comprehensive weed control and excellent resistance management. 

Focus herbicide
Gives lentils and wheat powerful grassy and broadleaf weed control from two modes of action.

 

Intruvix IIProvides consistently quick and lasting burnoff control of tough weeds like kochia, narrow-leaved hawk’s-beard and volunteer canola in front of cereals. 

 

In-Crop Kochia Products

Barricade II herbicide logo

Predicade herbicide logo

Travallas herbicide logo

Fall Kochia Products

Express FX herbicide
Provides three modes of action, Groups 2, 4 and 9 when combined with glyphosate for comprehensive weed control and excellent resistance management. 

Focus herbicide
Gives lentils and wheat powerful grassy and broadleaf weed control from two modes of action.


Provides consistently quick and lasting burnoff control of tough weeds like kochia, narrow-leaved hawk’s-beard and volunteer canola in front of cereals.