Diseases

  • Canola Watch quiz – Clubroot VIDEO

    Diseases

    This week’s quiz is based on information in this video, “Clubroot in Canola”

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  • Clubroot Update (with recipe for clubroot management)

    Diseases

    Manitoba Agriculture announced this week it has discovered a clubroot pathotype in South Central Manitoba that is able to overcome the first generation clubroot resistance. The article includes a ‘recipe’ to help growers limit clubroot damage in canola.

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  • Do you need to change blackleg resistance for 2020?

    Diseases

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  • How to manage (contain) a patch of clubroot

    Diseases

    If you find a patch of canola plants with clubroot galls, take action now to contain it. This is especially important (1) if clubroot is new to the farm or (2) if the field is seeded to a clubroot-resistant (CR) variety and the patch could have a new pathotype that you need to contain.

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  • Canola Watch quiz – Stem infections

    Diseases

    How well do you know your canola stem infections? Take this photo quiz to brush up on the distinguishing features of common stem diseases.

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  • Stem infections: How to tell them apart

    Diseases

    The following table will help you identify the diseases present, which is necessary in order to make the right management decisions.

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  • New clubroot areas – Scout your CR canola

    Diseases

    Clubroot continues to be confirmed in new areas. Random scouting of healthy looking plants is important because by the time galls are big enough to cause above-ground symptoms, clubroot has taken a firm hold in the field.

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  • Patch management for clubroot: You can do it! Here’s how

    Diseases

    If you find a patch of canola plants with clubroot galls, take action now to contain it. This is especially important (1) if clubroot is new to the farm or (2) if the field is seeded to a clubroot-resistant (CR) variety and the patch could have a new pathotype that you need to contain.

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  • Tips for pre-harvest disease scouting

    Diseases

    Sclerotinia stem rot could be a big problem in areas that started dry then turned wet and stayed fairly moist during and after flowering. The dry start to the season meant a lot of fields didn’t get sprayed with fungicide, even though conditions prior to and following flowering have favoured the disease in those areas.

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  • How to test soil for clubroot

    Diseases

    To check fields for the presence of clubroot DNA before you see visual symptoms, you can try a random soil test.

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  • Watch the new clubroot management video

    Diseases

    The video includes insight from various Canadian clubroot researchers. It explains what clubroot is, and how to reduce the risk of introducing clubroot to your farm, slow the spread of clubroot when it does arrive, and manage the impact if clubroot is established.

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  • Does canola need a second app of fungicide?

    Diseases

    Growers may see good reason for two applications (7 to 14 days apart as specified on the product label) if conditions are good for fungal growth and the crop flowers for a long period.

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  • Does late-window spraying for sclerotinia stem rot pay?

    Diseases

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  • Help for the sclerotinia spray decision

    Diseases

    The decision-making process on whether to spray for sclerotinia stem rot in canola begins about three weeks before flowering. The situation leading up to that point is almost irrelevant, given the canola plant’s ability to crank up yield potential in response to improved growing conditions. Sclerotinia stem rot can go from no risk to high risk with a timely period of regular rains and humidity.

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  • Sclerotinia stem rot PODCAST

    Diseases

    Canola Watch teams up with Real Agriculture to offer podcasts recorded live at canolaPALOOZA 2019 at Lacombe, Alberta. In this podcast, the first of five in the series, hosts Jay Whetter and Shaun Haney interview Luis Del Rio with North Dakota State University and Kelly Turkington with Agriculture and Agri-Food Canada to talk about sclerotinia stem rot risk factors and management.

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