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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 “Excess moisture and nutrient loss”
June 26, 2013

Excess moisture and nutrient loss

Growers can expect to see some nitrogen loss from extended heavy rains, probably in the range of 20-50%. Before top dressing, wait to see
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Featured image for “Improperly cleaned sprayer tank means crop damage”
June 26, 2013

Improperly cleaned sprayer tank means crop damage

We’ve had reports this week of growers causing unexpected damage to canola because the sprayer was not cleaned properly. The ideal tank cleaner has
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Featured image for “Moisture is the top sclerotinia risk factor”
June 26, 2013

Moisture is the top sclerotinia risk factor

Growers with high risk conditions for sclerotinia stem rot may want to get their management plan in place. Booking fungicide may be worthwhile if
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June 19, 2013

Issues of the week

Flea beetles are worse that usual in some areas, with growers spraying more than once and with heavy feeding carrying on past the 4-leaf
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June 19, 2013

Top 10 things to look out for now

You have to scout to know what’s going on in the fields. Here are 10 things to look for this week. 10 – Gopher
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Featured image for “Insect update: Cutworms, flea beetles, CSPW, grasshoppers”
June 19, 2013

Insect update: Cutworms, flea beetles, CSPW, grasshoppers

Cutworms are spotty but keep scouting. Flea beetles may need to be controlled past the 4-leaf stage in some extreme cases this year. Cabbage
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Featured image for “Bees and canola are good for each other”
June 19, 2013

Bees and canola are good for each other

Bees are good for canola. Canola is good for bees. Canola flowers provide an important source of nectar for honey producers in Western Canada:
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Featured image for “Aster yellows: No evidence of a problem in 2013”
June 19, 2013

Aster yellows: No evidence of a problem in 2013

Aster leafhopper numbers are quite low so far this year, down considerably from 2012. Aster leafhoppers carry aster yellows phytoplasma, so without leafhoppers to
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Featured image for “Top dress: Identify N and S deficiency”
June 19, 2013

Top dress: Identify N and S deficiency

Growers who used elemental sulphur as their only sulphur source may see deficiencies in this year’s crop. Elemental sulphur will not be available when
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June 19, 2013

Aerial options for weed control

If weeds and crop are advancing toward the end of the application window and the ground is too soft and wet to support a
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Featured image for “Rescue treatments for hailed crop”
June 19, 2013

Rescue treatments for hailed crop

Nutrient and fungicide top dress treatments have been promoted to help heal and restart canola after hail. We don’t have published studies on using
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Featured image for “Issues of the week”
June 12, 2013

Issues of the week

Canola crops across the Prairies look very good, in general, and growers are optimistic at this stage of the season. Top-dress fertilizer is a
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