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Rather than focus on how many blank pods may be present, concentrate on yield assessment by examining the components that contribute to yield (ie. number of plants in a given area, number of pods per plant, number of seeds within the pods). The following equation can be used to estimate yield when seed size has a thousand kernel weight of…
Canola Watch Posts
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Swathing of canola is well underway in Manitoba and just beginning in the earliest fields in Saskatchewan and Alberta. Avoid swathing during the heat of the day as chlorophyll can……
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Scouting for bertha armyworm can be tricky when scouting during the heat of the day. Click here to view a short scouting video with Canola Council Agronomist Tiffany Martinka. It…… -
It is not surprising that sclerotinia stem rot disease levels differ from field to field even if fields are in close proximity. Sclerotinia disease level is very dependent on the microclimate within the field. Moist growing conditions (ie. frequent rainfall or high humidity or heavy dews) promote disease development but factors that result in moisture-laden canopies can…
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Parts of central Alberta have canola fields that have been written off due to severe hail. However, a fair amount of plant growth remains. Canola silage may be one option. Canola silage (on a dry matter basis) averages 12 to 14% crude protein but can be as high as 16% or more. Total Digestible Nutrients TDN (energy) averages 55% to…
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Combining of earliest canola fields is near, with the odd field already harvested in Manitoba where crops are most advanced. Remember that for safe, long-term storage, canola should be conditioned……
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Lygus counts and bertha armyworm (shown above) counts are up this week. Saskatchewan and Manitoba growers are encouraged to scout for lygus this year. Lygus has been reported in most areas of Saskatchewan and some parts of Manitoba, as well as in Alberta where lygus tends to be a regular pest. For growers with crop ready to swath, keep in…
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On hot days, bertha armyworms take shelter low in the canopy or on the ground under leaf litter. This is not a good time to scout or spray. Bertha armyworms feed more actively on cooler days and in evenings. This is the time to spray. When scouting, include all worms larger than half an inch long in threshold counts. Smaller… -
When sweep netting for lygus (shown above), it may seem that there are more lygus in the field than end up in the sweep net. This is expected. Sweep net thresholds were establishing knowing that lygus in the sweep nets represented only a certain percentage of lygus in the canopy. Stick to the thresholds, and follow sweep net techniques outlined…