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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 “How late can you top dress?”
July 23, 2014

How late can you top dress?

Sulphur and nitrogen deficiencies are showing up in some canola crops. The crop may not have received enough fertilizer to begin with, especially if
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July 16, 2014

Four the week

Diagnosis: Ugly. A lot of canola crops are looking pretty sad, with small plants, low counts and a wide range of stages. This makes
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July 16, 2014

July 16 Quiz

How well can you identify the causes of canola root damage? We have six photos for you, including the one above.
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July 16, 2014

Map of the week

This zoomed in section of the Alberta bertha armyworm map shows the only location across the Prairies, to date, showing a “severe” level of
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Featured image for “Top 10 reasons for poor-looking canola”
July 16, 2014

Top 10 reasons for poor-looking canola

Growers in many regions are reporting canola fields that just don’t look as good as usual. Many are thin stands with weak plants and
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Featured image for “A big year for root rots”
July 16, 2014

A big year for root rots

Foot rot and brown girdling root rot (BGRR) seem to be more common this year. If you see dying plants or plants with lower
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July 16, 2014

Heat effect on flowering

Hot days (28-30°C and up) and warm nights (16°C and up) from bud to mid-flowering stages can have a devastating effect on canola yield.
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Featured image for “Sclerotinia stem rot risk re-assessment”
July 16, 2014

Sclerotinia stem rot risk re-assessment

Hot, dry conditions the past number of days and variable field staging have made the decision to spray fungicide to manage sclerotinia stem rot
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Featured image for “Irrigation and sclerotinia stem rot management”
July 16, 2014

Irrigation and sclerotinia stem rot management

Canola’s need for water is highest during the flowering growth stage, which means growers using irrigation have to provide more water during this stage.
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Featured image for “Insect thresholds: Quick review”
July 16, 2014

Insect thresholds: Quick review

While insects are not a major threat in most fields at this point in 2014, diamondback moth larvae are around, cabbage seedpod weevil are
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Featured image for “CSPW timing: When is it too late?”
July 16, 2014

CSPW timing: When is it too late?

The goal when spraying cabbage seedpod weevil (CSPW) is to stop adults from laying eggs in newly formed pods. CSPW don’t do their damage
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Featured image for “Summer can be dangerous for stored canola”
July 16, 2014

Summer can be dangerous for stored canola

We have reports of an “alarmingly high” rate of canola spoilage across the Prairies. Have you checked bins lately? Hot conditions increase the storage
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