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Plant counts help quantify the success of canola plant establishment in each field. If counts are less than expected, the article also lists common causes…
Canola Watch Posts
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Fungicide is probably not necessary in a field with at least a two-year break between canola crops, blackleg-resistant varieties and rotation of genetics. But if factors suggest a fungicide ROI, it has to be applied before the four-leaf stage… -
Trap counts are showing higher numbers of diamondback moths in a few areas, but this just means that the moths have arrived, and is not necessarily a cause for concern. Flea beetle scouting is more important this week… -
Situations...Lots of weeds and they're growing fast. Spraying at night to dodge heavy winds. Scouting shows escapes of efficacy issues. Tank mix makes a mess of the sprayer…
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The ideal time for nitrogen is any time up to the six-leaf stage to make sure fertilizer in place before the crop needs it. Sulphur can be applied up to early flowering and still provide a yield benefit…
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Wet soils cause an oxygen deficiency, which reduces root respiration and growth. Root failure reduces nutrient uptake, and plants will eventually die unless drowned areas dry out quickly. A few days in waterlogged soil can be enough to kill young canola plants… -
What would you do – spray or not spray – in the four scenarios outlined in this quiz?…
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The action threshold for flea beetles in canola crops in Canada is an average leaf area loss of 25 per cent or more. How do you make that assessment?… -
Pythium species, Fusarium species and Rhizoctonia solani – the "three amigos" – can cause seed rots, root rots and stem decay on young canola plants. Seed treatments are generally pretty good, but Krista Anderson from Bayer, Mark Belmonte from University of Manitoba and Autumn Barnes from the CCC explain the factors that can increase risks…