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Canola needs to move back up to 20% moisture and temperatures need to be 15 C or warmer before enzymes to reduce chlorophyll will restart and function effectively. Growers with high green canola in the swath have time to wait, if they choose, to see if these necessary rains come along…
Canola Watch Posts
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Weed seeds tend to contain more moisture than canola seeds, especially if they are green or immature. If these weed seeds congregate in pockets in the bin they can create localized hot spot for spoilage to begin — especially if that canola is also binned hot. Green canola seeds can also increase the storage risk, even if canola is dry…
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Canola growers can lose up to 5 bushels or more per acre if the combine isn’t adjusted properly. This article includes tips on how to measure combine losses. If losses are too high, growers can lower them by adjusting fan speed and sieves, for example, and by slowing down the whole combine operation… -
Yields have been lower than expected for many of the first harvested fields. The swath looked like a 35 bushel crop, but it yielded 25, for example. Heat during flowering and lack of rainfall may explain a large percentage of the unexpected loss. Disease and insect damage are also factors — large factors for some fields. Growers may have to delay…
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Growers and agronomists may be able to find clues to explain lower yields by looking at the plants, pods and seeds. Did the pods form? Did pods fill properly? Are seeds there but small or shriveled? Read more to see what these may mean, and what can be done to reduce these losses next year… -
Pre-harvest is a good time to scout for disease severity. The photo above shows severe sclerotinia infection. This article includes sclerotinia and various other diseases to look for… -
When doing their own disease surveys, growers may find it easier to check crops while swathing. Stop at five random spots in the field while swathing and check 20 standing plants at each spot. This will give you a good idea how much of the field actually had sclerotinia or blackleg or clubroot, for example… -
Many canola crops are maturing earlier than expected this year, in many cases due to hot weather. This has put some growers in a bind. They had sprayed insecticide expecting to be outside the pre-harvest interval (PHI) required between application and the planned cutting date, but now as the crop approaches swathing timing they realize that not enough time has… -
Even if canola is very dry, storage experts still recommend that hot canola be put on aeration for cooling. There will still be convection currents and some moisture movement within the bin, which can concentrate moisture at the bottom of the central core — creating a possible start point for heating…