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Canola Watch provides timely answers to top canola agronomy questions on diseases, insects, weeds and so much more.
Featured image for “Effect of cooler temperatures on canola”
August 17, 2011

Effect of cooler temperatures on canola

Cooler overnight temperatures (in the neighborhood) of 1 to 2 C occurred overnight Monday into Tuesday in parts of Alberta. These cooler temperatures will
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Featured image for “How long from 30 to 50% seed colour change”
August 17, 2011

How long from 30 to 50% seed colour change

Seed colour change is an indication of moisture dry down. The following is an estimate of canola seed dry down rates during ripening based
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August 17, 2011

What if frost does happen?

As crops near maturity, the risk of frost is watched closely especially this year with late crops and late stages within fields. If a
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August 17, 2011

Disease Update

Relatively low levels of sclerotinia infection can be found in most areas except in heavy and late maturing crops in northwest Saskatchewan where disease
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Featured image for “Keep malathion out of canola bins”
August 17, 2011

Keep malathion out of canola bins

Malathion CANNOT be used to treat bins where canola will be stored or to treat canola as it goes in to storage. These applications
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August 17, 2011

Tips to time swathing

Swathing is about to become general in Manitoba and proper timing is tricky in parts of Saskatchewan and Alberta because of variable staging. The
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August 10, 2011

Issues of the week

Insects are the hottest topic this week, with managing uneven maturity at swathing and harvest a close second. Before spraying those insects, make sure
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Featured image for “Which worm is it: bertha, diamondback or cabbage?”
August 10, 2011

Which worm is it: bertha, diamondback or cabbage?

Before spraying, make sure the worms feeding on your canola are actually the species you think they are. Bertha armyworm, diamondback moth larvae and
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Featured image for “Tips to control multiple insect species at once”
August 10, 2011

Tips to control multiple insect species at once

Economic spray thresholds are calculated based on individual species. We don’t have scientific evidence to combine thresholds, but where an “additive” effect of multiple
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August 10, 2011

How to sweep net properly

Thresholds for lygus bugs and cabbage seedpod weevil, for example, are based on a specific sweep net technique. If you’re not doing a complete
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Featured image for “When to swath multi-branched canola”
August 10, 2011

When to swath multi-branched canola

The ideal time to swath for yield and quality is when 50-60% of seeds on the main stem are turning color. At this stage,
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Featured image for “Apply pre-harvest glyphosate only after seed moisture drops below 30%”
August 10, 2011

Apply pre-harvest glyphosate only after seed moisture drops below 30%

Growers considering a pre-harvest glyphosate cannot apply it to canola (RR or non-RR) until seed moisture drops to 30% or lower. This roughly coincides
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