June 23, 2016 – Issue 14

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  • When you see something new

    Mystery symptoms 2016. Credit: Warren Ward

    Before spending money on a treatment, growers will need to identify the cause. The Canola Diagnostic Tool can help you work through the possibilities. A few localized tests can also help with the diagnosis….

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  • Top 10: Highlights from June 21 canolaPALOOZA

    Sweep netting begins for lygus and cabbage seedpod weevil.

    By this stage of the season, flea beetle and cutworm risks are lower because crops are bigger and these two insects are in natural seasonal decline. Adult flea beetles have laid their eggs and are dying. Cutworms are pupating. We’re now moving toward sweep net timing for lygus and cabbage seedpod weevil.

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  • Sclerotinia stem rot risk: The basics

    Earliest canola fields are coming into flower, and many areas of the Prairies have more than enough moisture to elevate the sclerotinia stem rot risk. Here are key risk reminders as we head into sclerotinia stem rot management season: —Prevalence of sclerotinia stem rot has a direct correlation to above-average moisture. If a field has […]

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  • Volunteer your fields for the SK disease survey

    If you would like a field tested for clubroot as part of the Ministry’s survey please email pestsurveys@gov.sk.ca with your name, phone number, RM and Legal Land Location.

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  • Early flower is weevil time

    Cabbage seedpod weevil. Credit: S.J.Barkley, Alberta Agriculture and Forestry

    Keys to the spray decision are scouting and timing. The economic threshold is 20 CSPW per 10 sweeps generally across the field. If weevils are at thresholds, the time to spray is at 10-20% bloom, just as first pods reach 3/4” long.

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  • How-to videos on scouting and sweep netting

    Cabbage seedpod weevil and lygus thresholds are based on sweep net counts. Here are three videos that can help with scouting and sweep-netting tips for cabbage seedpod weevil and lygus.

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  • Root maggot scouting

    You might be seeing more root maggots this year, but they're not really something that can be controlled in crop.

    General wilting is likely environmental, but patches or individual plants could have some other cause. Dig them up carefully and look at their roots for clubroot galls, root diseases and cabbage root maggots.

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  • Root rot scouting

    Foot rot caused by rhizoctonia.

    If you see dying plants or plants with lower leaves dying off while other plants remain green, this may indicate abnormal root function.

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  • 7 causes for missing pods

    Missing pods due to heat blast on flowers. Photo credit: Keith Gabert

    Heat, drought, off-label herbicide applications, male sterility, insects, sulphur deficiency, boron deficiency.

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  • Managing canola after a late June hailstorm

    Hail damage. Credit: Beth Trueman

    The later hail occurs, the higher the chance of yield loss, given that the plants have less time to recover.

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  • Herbicide issues: Late spraying, drift, carryover

    Second applications applied late can reduce profitability it two ways: A competitive crop growing ahead of the weeds may not need a second application. A late application can cause a surprising level of hidden damage to canola plants, setting back yield potential.

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  • PAMI summer storage research 2016 — blog

    By Joy Agnew, lead investigator The Canola Council of Canada, in collaboration with the Saskatchewan Ministry of Agriculture, PAMI and the provincial Canola grower commissions, is gathering more information to help define best management practices for summer storage of canola. Click here for live updates of in-bin conditions. 2014 results In 2014, PAMI and the […]

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