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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…
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Too windy. Too wet. Sometimes both. This pushed back a lot of weed management and some fields are still not sprayed. In this situation, intense weed pressure can reduce yields by 20%, 30%, 50%... That's why early weed control has a huge positive effect on profitability, but late control is better than nothing. Late control can stop the yield loss,…
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Unexpected carryover can occur when dry conditions in the year of application slow the expected pace of breakdown of herbicides. Unexpected residue damage is a risk any time a sprayer is left full while waiting for an opportunity to spray, or when sprayers are not effectively cleaned between crops and between products…
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Low wind and clear skies can cause inversions, which can increase the risk of spray drift. This article explains how to identify (and avoid) an inversion scenario when spraying. The……