This quiz includes a link to the video and the resources at clubroot.ca. Take time to learn as much as possible about this disease and how to stop it.
Farmers with standing or just-cut crop still have an opportunity to scout for clubroot. Take advantage of an opportunity to scout while waiting to swath or combine. Although clubroot can be detected for some time after swathing, it becomes more difficult to recognize as galls decay.
You have two choices in this situation: Swath now or wait.
Swathing now might prevent further seed loss if severe frost damage will soon cause pods to pop open and pedicels to snap. You could have shriveled seeds and high green counts, but that might be better than the potential losses from waiting. But if frost did not kill the plants, swathing early will halt any upside potential you’d have from leaving the crop standing to fill out more seeds and clear more green.
Get out there and count your canola stubble! Counting stubble density in the fall can help growers determine if their spring seeding rate was adequate to reach the crop’s yield potential.
The best method, even with bin monitoring cables, is to remove about a third of the canola. This disrupts the moisture cycle and helps to stop any heating or spoilage that may have begun in the central core. While unloading, feel and smell canola as it comes out of the bin.
Crop with a heavy lean may require some trial and error to test the best angle of attack. Some operators will prefer going perpendicular to the lean; some will prefer going into the lean. With straight cutting, you can go whatever direction works best for crop flow.
Fall is a good time to control perennial and winter annual weeds, but spraying immediately after harvest may not provide the best results.
For results to be as close as possible to the situation next spring, the ideal time to take fall samples is when soil temperatures drop below 10°C and as close to freeze-up as possible.
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