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Fungicide labels allow for spray up to 50% flower (some are up to 30%). Spraying this late may work well if the crop seems

Keep in mind pre-harvest intervals for fungicides and insecticides now that many early seeded crops are less than a month from swathing. Pre-harvest intervals

Canola petals can turn orange in response to stress, usually heat stress. There is nothing that can be done about heat damage. White or

An AAFC study has shown very clearly that with continuous canola, there is a statistically significant increase in crop damage by root maggots. No

Fields that have received lots of rain may be showing sulphur deficiency. Rain leaches sulphur lower in the soil profile. Plants can usually access

It’s mid July, and some very early canola is already being swathed in parts of Manitoba. Waiting until 60% seed colour change on the

More aster leafhoppers are carrying phytoplasm this year, so that could mean a jump in aster yellows. Sclerotinia stem rot risk may still be

When it comes to the sclerotinia stem rot risk, moisture has a much larger influence than temperatures. Infection can be high in hot weather

Heat — Foliar boron applied at flowering has been tested on canola in Ontario to as a way to prevent blossom blast during summer

Our current economic threshold tables for lygus in canola may be too low when applied to current canola production systems across the Prairies. If

Leafhoppers are more plentiful and carrying more aster yellows phytoplasm this year, but spraying is rarely effective. Bertha counts are starting to spike in

Any stress can inhibit proper fertilization of the flowers. Common stresses included heat, drought, excess moisture, insects, herbicide damage, and nutrient deficiency. In many