Insects

Canola Watch provides timely answers to top canola agronomy questions on diseases, insects, weeds and so much more.
Featured image for “BeeConnected app: Register to help protect bee colonies”
May 3, 2017

BeeConnected app: Register to help protect bee colonies

The free BeeConnected app helps to ensure that bees and agriculture can co-exist and thrive. The application allows farmers to tell beekeepers in their
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Featured image for “Plant a Buzzing Garden”
May 3, 2017

Plant a Buzzing Garden

By planting a Buzzing Garden, we can all help to improve the number and quality of honey bee food sources, and support them in
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Featured image for “Insects: Cutworm guide, DBM monitoring”
May 3, 2017

Insects: Cutworm guide, DBM monitoring

AAFC has published a new cutworm guide, available as a free download, with descriptions of all pest cutworms in Canada as well as helpful
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Featured image for “New midge video”
February 16, 2017

New midge video

The Canola Council of Canada has a new video describing swede midge, its life cycle and the damage it can cause canola crops in
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Featured image for “New midge in canola”
February 8, 2017

New midge in canola

Distorted canola growth thought to be from swede midge (Contarinia nasturtii) is likely caused by a separate midge species (Contarinia brassicola). Scientists were suspicious
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Featured image for “Pest survey results for 2016”
December 9, 2016

Pest survey results for 2016

Results from the disease survey show increases in sclerotinia stem rot incidence. Blackleg incidence is down from 2015 in Manitoba and Saskatchewan and up
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Featured image for “Bertha armyworm: A few warm spots”
August 10, 2016

Bertha armyworm: A few warm spots

While economic levels of damage have not been reported anywhere yet this year, individual fields could experience isolated high numbers.
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Featured image for “Lygus thresholds: Good vs dry conditions”
August 4, 2016

Lygus thresholds: Good vs dry conditions

In dry conditions: Threshold tables for lygus indicate that if canola is $12 per bushel and spray costs $8 per acre, the threshold at
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Featured image for “Why so few insects this year?”
July 27, 2016

Why so few insects this year?

Pod-eating insects — including bertha armyworm, lygus and diamondback moth larvae — are at low levels in general in 2016. The biggest factors regulating
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Featured image for “Curled pods are usually thrips damage”
July 27, 2016

Curled pods are usually thrips damage

Three thrips species will feed on canola in Canada and only one — western flower thrips, (Frankliniella occidentalis) — causes pod curling.
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Featured image for “July 20 Quiz — What's in your sweep net?”
July 20, 2016

July 20 Quiz — What's in your sweep net?

You may find quite menagerie of insects in your net after 10 sweeps. Can you correctly identify these five?
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Featured image for “Lygus bugs: ID, scouting tips and thresholds”
July 20, 2016

Lygus bugs: ID, scouting tips and thresholds

Lygus have piercing, sucking mouth parts, which they use to pierce pods and drain immature seeds. This is where the major yield loss occurs
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