Home / Canola Watch / June 13, 2018 – Issue 11
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Growing degree days across most of the Prairies have reached the threshold for adult bertha armyworm (moth) emergence from overwintering pupae. That is 7-10 days ahead of normal. Egg laying begins shortly after adult emergence and young worms emerge about a week after that. Based on 2017 results, 2018 is not expected to be a bad year, but local flare-ups…
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This quick quiz has three images showing pretty distinct symptoms. What caused them?…
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A field has a large number of young canola plants that look limp, pale, chewed-up, knocked around, lifeless and sad. How can you tell if a dead-looking plant still has life? Look at the growing point. Is it green?…
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Injury from herbicide residue in the soil can only occur in fields with a history of Group 2, 4, 5 and 14 herbicide applications. While soil characteristics and dry conditions can extend the at-risk period for these herbicides, carryover issues often occur when required recropping intervals are not followed. For example, Roundup Ready or Liberty Link canola cannot be seeded…
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How do you spray weeds in a timely fashion when every day seems too windy? Here are some tips…
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The Brown soil moisture probe indicates the depth of moist soil. This depth can indicate the inches of available moisture in the root zone…
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In-crop fertilizer applications can rescue a deficiency situation. But what nutrients are deficient? Look for these symptoms…
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The International Clubroot Workshop, a gathering of clubroot researchers, is August 7-9 in Edmonton. Extension specialists, municipal staff, canola growers and anyone else interested in clubroot management are welcome to attend…
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Early season hail rarely has an impact on canola yield potential. Hailed seedlings usually come back very well. Even when individual plants die, a whole canola crop is fairly resilient to early season hail when it comes to overall yield potential…
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