Home / Canola Watch / Weeds / Page 11
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A second application of in-crop herbicide is not always economical if the crop is well established, competitive and ahead of the remaining weed population. A second in-crop spray only makes sense if…
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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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One of our Alberta agronomy specialists encountered the situation in the photo. Canola emergence was patchy in this small area, but generally good overall. The bigger issue was the big population of tiny weeds. The agronomy specialist wondered if these buckwheat seedlings, though very abundant, were too small to spray? The answer is no…
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With warm soils, decent moisture and 1” seeding depth, emergence can occur about a week after seeding. If emergence is slow or patchy, scout to find out why. The first 21 days are critical to a successful canola crop…
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Factors that affect herbicide carryover are herbicide group, field history, soil characteristics, dry conditions and temperature…
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A quick quiz to test spraying windows, inversions and timing…
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In general, early is the best for herbicide timing. A few early weeds emerging before or at the same time as canola plants are much more damaging to yield than……
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Adding micronutrient solutions, especially zinc, to glyphosate is highly antagonistic to the herbicide…