Insects

Canola Watch provides timely answers to top canola agronomy questions on diseases, insects, weeds and so much more.
Featured image for “Insect update: The biggies plus clover cutworms and little red bugs”
June 27, 2018

Insect update: The biggies plus clover cutworms and little red bugs

Clover cutworm damage has been confirmed in a few fields around Weyburn, Saskatchewan. They are a climbing cutworm and can be easily confused with
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Featured image for “Cutworms heavy in canola on canola”
June 20, 2018

Cutworms heavy in canola on canola

Two CCC agronomy specialists heard this week of high cutworm damage in canola fields seeded into canola stubble. Canola on canola has many potential
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Featured image for “Map of the Week – CSPW”
June 20, 2018

Map of the Week – CSPW

With earliest canola fields starting to flower in southern Alberta and southwest Saskatchewan, cabbage seedpod weevil scouting season begins. Here is the forecast map
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Featured image for “Cabbage seedpod weevil: Early fields at highest risk”
June 20, 2018

Cabbage seedpod weevil: Early fields at highest risk

Earliest canola fields are just coming into flower in southern Alberta and southwest Saskatchewan, the highest-risk areas for cabbage seedpod weevil in Western Canada.
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Featured image for “Map of the Week – Bertha armyworm”
June 13, 2018

Map of the Week – Bertha armyworm

Growing degree days across most of the Prairies have reached the threshold for adult bertha armyworm (moth) emergence from overwintering pupae. That is 7-10
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Featured image for “Scouting 7 to 21 days after seeding: What to look for?”
June 6, 2018

Scouting 7 to 21 days after seeding: What to look for?

With warm soils, decent moisture and 1” seeding depth, emergence can occur about a week after seeding. If emergence is slow or patchy, scout
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Featured image for “Reader question: Will plants survive flea beetle stem feeding?”
June 6, 2018

Reader question: Will plants survive flea beetle stem feeding?

If the tissue underneath the bite is still living, the seedling will likely survive as long as (1) the stem can still bear the
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Featured image for “Cutworms: Timely scouting and spray decisions”
June 6, 2018

Cutworms: Timely scouting and spray decisions

Include cutworms on the scouting checklist for the first one to three weeks after emergence. Any later and management becomes more difficult because (i)
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Featured image for “Photography tips for agronomy”
June 6, 2018

Photography tips for agronomy

Photographs can be a valuable diagnostic tool, but they have to be in focus, taken from various angles and come with details on field
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Featured image for “Flea beetles: Why are some fields so bad in 2018?”
May 30, 2018

Flea beetles: Why are some fields so bad in 2018?

Early-seeded and slow-growing canola crops (usually due to dry conditions) have faced more flea beetle pressure this year, particularly in Manitoba and central Alberta.
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Featured image for “Tank mixes of herbicides and insecticides or fungicides”
May 30, 2018

Tank mixes of herbicides and insecticides or fungicides

Combining pest control operations to save trips over the field may seem like good economic sense, but consider the following when making this decision:
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Featured image for “What’s the Buff? Don’t spray sensitive areas”
May 30, 2018

What’s the Buff? Don’t spray sensitive areas

Buffer zones or strips come in all shapes and sizes, and are designed to protect sensitive areas. Sensitive areas include permanent vegetation to maintain
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