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Not really. At least nothing shown to work consistently in Western Canada…
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Seeing blanks up canola stems where pods should be? Here are the seven most common causes.... At the bottom of this article, see a graph showing how canola plants can compensate for aborted flowers…
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In very dry conditions: Threshold tables for lygus indicate that if canola is $12 per bushel and spray costs $8 per acre, the threshold at the early pod stage is 5 lygus adults or late instar nymphs per 10 sweeps (0.5 per sweep). In moist and high-yield conditions: The economic threshold is quite a bit higher. At early pod stage,…
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The ideal time for a sulphur top up is any time before flowering, but a top up at early flowering may pay off if plants are showing signs of sulphur deficiency. The ideal time for a nitrogen top up is before the 5-leaf stage of canola, but AAFC research out of Indian Head, Saskatchewan, shows that nitrogen top dress as…
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With Saskatchewan and Alberta enjoying highly successful canolaPALOOZAs this week, the attention now turns to Manitoba's CROPS-A-PALOOZA, July 25 in Portage la Prairie. The one day, hands on, free, in-field learning interactive event brings together the best research and agronomy extension professionals and farmers to learn how to grow the best crops…
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Five questions that could help with your sclerotinia spray decisions…
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Soil moisture and rainfall leading up to flowering is an indicator of sclerotinia stem rot risk. Rain in this pre-flower period will have apothecia emerging and spore release occurring around the time of early flowering. This map from AAFC's Agroclimate website shows precipitation accumulation across the Prairies from June 12-26…
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The decision to spray or not spray fungicide to limit sclerotinia stem rot is rarely easy. Consider the following three scenarios as you assess the risk situation this year…
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The timeline from when sclerotia in the soil first take on moisture, to apothecia germination, spore release, petal infestation, petal drop and finally canola plant infection takes up to three weeks. This graphic shows the final 24 hours as the fungus on decaying petals enters the plant and creates a lesion…