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The sclerotinia spray decision is more complicated for growers with canola stands that are thin, late or at multiple stages. Multi-stage and thin crops that have good yield potential and are fairly well advanced may benefit from a split fungicide application…
Sclerotinia stem rot
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Regrowth after hail may extend the flowering period, which also increases the sclerotinia stem rot risk. If yield potential is still high and if conditions favorable to sclerotinia stem rot persist, then a fungicide spray may pay off…
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Fungicide to protect the crop from sclerotinia stem rot infection must be applied to petals before infected petals start to drop into the canopy. Petal drop starts after 30% flower,……
