2009 – Issue 14

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  • One More Rain Might Do It

    One More Rain Might Do It Alberta and the BC Peace Region had seasonal daytime temperatures last week which spawned thundershowers in many locations, with rainfall amounts ranging from trace to 2 inches and reports of strong winds and hail. Relatively cool conditions prevailed in the rest of the Prairies with many parts of Saskatchewan […]


  • Turn up the Heat, Please

    Crop development ranges from early bloom (20%) in the late and re-seeded fields to fully podded in the early fields. Some of the very earliest fields in southwestern Manitoba and Saskatchewan are starting to show signs of color change but swathing is still estimated to be about three weeks away. Crop development continues to lag […]


  • Hail Damage – Getting Too Late to Recover

    Thunderstorms last week and over the weekend brought hail to parts of Alberta and central Manitoba. It is likely getting too late in the growing season for canola plants to compensate and recover from severe hail damage. Mid-season hail is also a concern for disease access. The hail wounds on the plant can provide points […]


  • Pay Attention to Pre-Harvest Intervals and Product Registrations

    The preharvest interval (PHI) refers to the number of days that the crop should not be harvested after application of a pesticide. Harvest in this context means cutting or swathing. If the crop is harvested before the indicated interval has elapsed, there could be unsafe or unacceptable residues of the pesticide remaining in or on […]


  • Affected Patches Appearing – Find out Why

    At this time of year (as the canola crop finishes flowering and begins to pod), often stressed or affected patches appear within the field. These patches are often most noticeable because they started flowering at the same time as the rest of the field but are now coming out of flower sooner. If possible, mark […]


  • Harvest Approaching – Start Planning Now

    If warm, dry conditions prevail, cutting of the earliest canola fields may begin within about three weeks. After flowering (pod filling) is a good time to assess yield potential leading up to harvest. The variable staging this year has not evened out and will require more management at harvest. It may be beneficial to mark […]


  • Keep Malathion OUT of Canola Bins

    As bins are prepared for the coming harvest, keep in mind that using malathion on canola seed or in canola storage bins will result in detectable levels of malathion residue because malathion has a strong attraction to the oil in canola seed. Consequently, malathion can move into canola seed from storage bin walls. Detection of […]


Canola Watch