Home / Canola Watch / Weeds / Page 10
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Residual herbicides need a moist environment for herbicide breakdown to occur within the expected time-frame. In dry conditions, the two major breakdown methods – hydrolysis or microbial degradation – will slow down, which elevates the carryover risk…
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Spray decisions — when to spray or whether to spray at all — will depend on leaf condition after the snow is gone…
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Despite some wintery weather, we can hope for (and expect) good harvest weeks to come. Don’t rush into pre-winter jobs just yet…
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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. Before spraying, identify the weeds present. Are they perennials? Winter annuals? Annuals? Clubroot hosts?…
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Dry conditions throughout the summer and heading into winter could have ramifications for field management decisions this fall and rotation planning for next year…
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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…
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Some canola fields are looking weedier than expected for this time of year. If you see fields like this, think about the cause and, if appropriate, consider a different approach next year…
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What is the goal with a pre-harvest application? If weed control is the goal, assess the weed situation before spraying. If desiccation (crop and weed dry-down) is the goal for straight combining, this decision should wait until just before harvest. Here are the pre-harvest options for canola…
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With herbicide applications winding down, this is a good time to scan fields for suspicious weeds that escaped the management effort. The photo from Tammy Jones shows glyphosate-resistant kochia…