Weeds

Canola Watch provides timely answers to top canola agronomy questions on diseases, insects, weeds and so much more.
Featured image for “Test kochia escapes for glyphosate resistance”
July 31, 2019

Test kochia escapes for glyphosate resistance

Farmers will want to test escapes for glyphosate resistance so the weeds can be targeted for intense management before they start to shed their
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Featured image for “A case for combine weed-seed destroyers”
July 17, 2019

A case for combine weed-seed destroyers

Breanne Tidemann, research scientist with Agriculture and Agri-Food Canada, has been researching combine weed seed destructors. They’re not perfect because some weed seeds will
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Featured image for “Reader question: Late weed applications on stagey canola”
June 27, 2019

Reader question: Late weed applications on stagey canola

I have a field that is fairly dirty with kochia, cleavers and lamb’s-quarters. Half of the field is in 6-leaf and half is staring
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Featured image for “Suspicious weed patches? Check for resistance”
June 27, 2019

Suspicious weed patches? Check for resistance

Important clues that a patch of weeds are herbicide resistant: One, the patch has no clear boundary. Two, the patch will be one species
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Featured image for “Moisture-stressed plants and herbicide applications”
June 27, 2019

Moisture-stressed plants and herbicide applications

Clark Brenzil, weed management specialist with Saskatchewan Agriculture, provides the following consideration for spraying weeds after weather conditions have switched from very dry to
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Featured image for “Sprayer clean-out – tips”
June 27, 2019

Sprayer clean-out – tips

This article underlines the importance of a complete clean out between products, and to understand the risks for each product and each tank mix
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Featured image for “Second-pass herbicide: Why and when?”
June 19, 2019

Second-pass herbicide: Why and when?

A second in-crop spray only makes sense if weeds are plentiful, at the same stage or ahead of the crop and the canopy hasn’t
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Featured image for “Canola Watch quiz – Herbicide-resistant weeds”
June 13, 2019

Canola Watch quiz – Herbicide-resistant weeds

Six questions about herbicide resistant weeds – causes and management
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Featured image for “Dry conditions. Should I spray weeds?”
June 5, 2019

Dry conditions. Should I spray weeds?

If weeds are present, then yes, you should spray. In some ways, dry conditions should do more to encourage early spraying because you don’t
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Featured image for “Weed BMPs: Spray early”
May 29, 2019

Weed BMPs: Spray early

We know that weed competition can greatly reduce canola yield. A combination of pre-seed weed control and one in-crop application before the 4-leaf stage
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Featured image for “Weed control strategies for each HT system”
May 29, 2019

Weed control strategies for each HT system

Here are strategies to improve weed control results for each herbicide-tolerant (HT) system: Falco, Clearfield, Liberty Link and Roundup Ready.
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Featured image for “Canola Watch PHOTO quiz – Scouted this week”
May 29, 2019

Canola Watch PHOTO quiz – Scouted this week

Scouting for the season should start right at emergence. That way you can spot some of the early-season issues featured in this week’s photo
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