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Canola can face many threats in the first few weeks after emergence, including flea beetles. Keep scouting!

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  • July 2 Quiz – flowers

    Does that flower look pale to... more

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  • No cause identified for mystery symptoms

    Under various conditions the past decade, some canola fields have exhibited stunting and strange deformities in bud clusters — as demonstrated in the photos below. The cause remains a mystery. —There... more

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  • Insect update: Grasshoppers, lygus, cabbage seedpod weevil

    Grasshoppers may be above thresholds in some fields. The nominal threshold for grasshoppers in canola is 8-12 per square metre, although the higher end of that range may be more appropriate in a typical... more

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  • Heat and drought can cause flower abortion

    Hot days (28-30°C and up) and warm nights (16°C and up) from bud to mid-flowering stages can have a devastating effect on canola yield. Cool nights offer some recovery from hot days. Warm nights do not... more

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  • Spraying a multi-staged crop

    Many canola crops have plants at multiple stages of growth. This field was reseeded due to frost, but some of the originals survived. Crop staging comes into play for herbicide, insecticide and fungicide... more

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  • Sclerotinia risk: How low is it?

    Moisture is the key risk factor for sclerotinia stem rot. Without moisture before, during and after flowering, disease severity and the return on investment from fungicide will be lower than if moisture is... more

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  • 10%, 20% and 50% flower

    To assess flowering stage, count all “flowers” — which includes flowers, aborted flowers and developing pods — on the main stem. These numbers are based on plant densities above 8-10 plants per square... more

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  • Canola Research Hub — video tutorial

    A new video tutorial for the Canola Research Hub is up and running. The video gives a quick introduction to the site and how to use it. Research is continually being added to the hub. Take some time and check... more

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  • Coming events

    International Rapeseed Congress - July 5-9, Saskatoon, Saskatchewan. More information. Crop diagnostic school — July 28-30, Outlook, SK. More information and registration. Crop diagnostic school —... more

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  • Hail at flowering

    Yield loss will be lower if hail hits before flowering than at late flowering. Source: Canola Growers Manual Canola is quite resilient to light hail at up to 20% flower. The crop can flower longer to... more

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