Insects

Canola Watch provides timely answers to top canola agronomy questions on diseases, insects, weeds and so much more.
Featured image for “How to use the Canola Diagnostic Tool”
March 6, 2013

How to use the Canola Diagnostic Tool

Give the brand new online Canola Diagnostic Tool a pre-season test drive at www.canoladiagnostictool.ca. Start with a problem scenario that you encountered in a
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March 6, 2013

CanoLAB highlights

Read more for a great video showing tiny wasp larvae devouring an alfalfa looper from the inside out, for a pop bottle demo (shown
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February 7, 2013

Thresholds: Insect management tools

Insect economic thresholds represent the break even point for an insecticide spray. Sticking to thresholds will also help preserve a vibrant and economically valuable
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December 5, 2012

Scouting calendar

This calendar shows you the major pests and problems to look for in canola at each point in the season.
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December 5, 2012

Find the right agronomist

Growers who do not have the time for timely scouting may want to hire an agronomist to support their own scouting program. Most agronomists
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September 26, 2012

Factor: Insects

We don’t exactly know why insects were more plentiful this year, but a mild winter and more canola than ever are likely factors. Achieving
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August 29, 2012

Sprayed late, now what?

Many canola crops are maturing earlier than expected this year, in many cases due to hot weather. This has put some growers in a
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August 24, 2012

Alert: Must wait 21 days to cut after Lorsban application

Growers who are using Lorsban or the generics Citadel, Pyrinex and Nufos to control insects are advised to observe the pre-harvest Interval (PHI) for
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August 15, 2012

Quantify late-season insect threats

In parts of central Alberta, lygus counts continue to exceed thresholds significantly (with counts as high as 450 lygus in 10 sweeps in some
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August 9, 2012

Need to spray insects this late?

Scouting for bertha armyworm can be tricky when scouting during the heat of the day. Click here to view a short scouting video with
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August 1, 2012

Spray berthas in the evening

On hot days, bertha armyworms take shelter low in the canopy or on the ground under leaf litter. This is not a good time
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Featured image for “Lygus scouting tips”
August 1, 2012

Lygus scouting tips

When sweep netting for lygus (shown above), it may seem that there are more lygus in the field than end up in the sweep
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