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This article describes specific tips for timing and rates for each canola herbicide-tolerant (HT) system…
Strategies to improve weed control in canola
June 1, 2016
In-crop
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Avoid spray tank contamination — tips
June 1, 2016
Tank mixes used for pre-seed burnoff ahead of cereals often contain Group 2 and Group 14 products that can hang up in sprayer plumbing. These residues can be particularly damaging……
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Aerial options for weed control
June 1, 2016
If weeds and crop are advancing toward the end of the application window and the ground is too soft and wet to support a sprayer, then aerial spraying may be the best economic response…
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Weed management timing — scenarios
May 26, 2016
Early weed control is preferred because nutrient and moisture taken up by weeds means less for the crop. Weeds emerging before the crop also compete for sunlight, which is an issue if those weeds canopy over the crop. Ideally, growers want crop emerging in a clean field so it can get ahead of the weed competition. That is why pre-seed…
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Spraying before a rain
May 26, 2016
The rainfast requirement varies by product. Here are required intervals for each common product used in HT canola systems…
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Tips for spraying in the wind
May 26, 2016
How do you spray weeds in a timely fashion when every day seems too windy? Too windy, according to the Guide to Crop Protection, is wind above 15 km/h. Here are tips for spraying in the wind…
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Watch for jimsonweed and other strange weeds
September 16, 2015
Weed management includes a keen eye for the unusual. “Unusual” can be suspicious patches of common weeds (herbicide resistance?) and presence of new unknown weeds. Jimsonweed is, for many, an usual and unknown weed. (Shown above.) It was reported in several Alberta canola fields a couple weeks ago, and has now been confirmed in fields in 11 Alberta municipalities…
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Herbicide for variable staged crops
June 26, 2015
Patchy emergence due to a few weeks of dry and then a rain, or due to reseeded crop emerging among the few original plants, has created a wide range of stages in some crops. Make herbicide timing decisions based on the stage that represents the highest proportion of plants. And rather than planning on two applications, growers may be better…
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Get the most out of your herbicide application
June 17, 2015
This article has tips and links for information on spraying in windy conditions, when to spray uneven crop, spraying at the right crop stage, sprayer clean out to prevent crop damage, and Keep It Clean tips for new products…