Home / Canola Watch / Weeds / Page 13
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The map shows herbicide carryover risk in Saskatchewan based on summer 2017 precipitation. In-season moisture from last season is the measure that influences herbicide breakdown…
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Weeds that emerge before the crop can be highly damaging to crop yield potential because they out-compete the crop for moisture, nutrients and sunlight. When the crop emerges, all early weeds need to be dead…
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For best results, spray winter annuals when they’re small. They’ll be growing fast this week…
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We haven’t lost a crop in March, but growers across large parts of Western Canada are concerned about the soil moisture situation. This may influence decisions on seed costs, fertilizer rates and, when the time comes, seeding depth. Dry conditions that started last summer can also increase the risk of herbicide carryover…
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Going to an auction sale this spring? Before bringing home a new machine, check that it's clean outside and in. Soil on used drills, combines and basically any field machinery could contain clubroot spores…
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Of all the glyphosate applied in the pre-seed window in Western Canada in 2017, 73% was applied alone. Only 27% was tank mixed. That’s according to data Monsanto presented at meetings this winter. Tank mixing multiple modes of action is generally considered one of the best ways to avoid herbicide-resistance, so we want to see that tank-mixing number grow…
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Perennials such as thistles and dandelions are best controlled from mid-September to early October. Waiting at least a month after cutting will increase the target leaf area, but later dates increase the risk of losing healthy leaf tissue to frost. Without healthy leaf tissue, the herbicide can’t get translocation to the weed’s crown and storage roots where the killing can…
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Fall is a good time to control perennial and winter annual weeds, but spraying immediately after harvest may not provide the best results…