Weeds

Canola Watch provides timely answers to top canola agronomy questions on diseases, insects, weeds and so much more.
Featured image for “Spraying tips for tough conditions”
May 6, 2020

Spraying tips for tough conditions

When to spray weeds after a frost? How to reduce drift in windier conditions? And more….
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May 6, 2020

PPE's recommended for handling pesticides

Respirators for pesticide applicators are NIOSH/MSHA/BHSE approved organic-vapour-removing cartridge with a pre-filter approved for pesticides or a NIOSH/MSHA/BHSE approved canister for pesticides.
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Featured image for “Pre-seed burnoff: Tips for best results”
April 30, 2020

Pre-seed burnoff: Tips for best results

Weeds that emerge before the crop will out-compete the crop for moisture, nutrients and sunlight. That is why just a small number of weeds
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April 22, 2020

PODCAST: Early weed control – tips

Ian Epp and Clark Brenzil compare pre-seed burnoff and early post-emergence applications, and make a good case for spraying first and then seeding.
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April 22, 2020

VIDEO: Spring cleaning for sprayers

Clean lines, nozzles and screens to prepare the sprayer for a busy few weeks of early weed control
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March 11, 2020

How to cope with salinity

Recent wet and dry cycles have increased topsoil salinity in many parts of the Prairies over the past few years. “Salinity is not a
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Featured image for “Plan to tank mix glyphosate for pre-seed burnoff”
March 11, 2020

Plan to tank mix glyphosate for pre-seed burnoff

Simple but effective… Tank mixes are recommended to control canola volunteers and glyphosate-resistant kochia, and to protect the long-term viability of glyphosate.
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Featured image for “Fall weeds: Snow and frost and timing”
October 2, 2019

Fall weeds: Snow and frost and timing

The snow layer is likely to insulate the weed leaf material from the colder conditions that follow it. That could mean you’re back spraying
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Featured image for “Do you need to spray germinating volunteers?”
September 18, 2019

Do you need to spray germinating volunteers?

The general advice is to leave them. As annuals, frost and winter will kill off most of them, and any money spent trying to
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Featured image for “Prevent weed patches from setting seed”
September 5, 2019

Prevent weed patches from setting seed

These weed patch cut-arounds are easy to do when straight combining. The key is to destroy those patches with a mower or cultivator before
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Featured image for “Best timing for perennial weeds: Pre-harvest or post-harvest?”
August 14, 2019

Best timing for perennial weeds: Pre-harvest or post-harvest?

If you have a canola field with a lot of perennial weed escapes, especially Canada thistle, are you better to spray them pre-harvest or
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Featured image for “New glyphosate-resistant weeds moving north”
August 8, 2019

New glyphosate-resistant weeds moving north

Tall waterhemp is confirmed in eastern Manitoba. Palmer amaranth is in North Dakota and moving north toward Manitoba and Saskatchewan. Both are big aggressive
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