• Issues of the week: August 25, 2010 — With cooler temperatures and elevated frost risk for some regions in the coming week, growers may be tempted to swath early to guard against frost. Growers with sclerotinia or hail damage are also inclined to swath early. We encourage growers to think twice in all cases. Read……
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  • Peace (B.C. and Alberta): Swathing is general across the Peace and the odd field has been combined in south, central and western regions. Rains of a few tenths at a time have hit the driest regions just as farmers are trying to harvest. Hail covered a large area from Woking to Wanham, burying swaths in……
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  • Seed colour change not typical. We have reports from southern Saskatchewan of plants showing a touch of colour on all seed, top to bottom. The whole plant is maturing at the same time. This can occur with abundant moisture, in dense stands with not a lot of branches, and in stands that had a short……
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  • At harvest, look for late-season diseases and insect damage that can help with decision making next year. —Break open the stems of any bleached white plants and look for hard black sclerotia bodies forming inside the stem. High levels of sclerotia returned to the soil this fall can increase the risk of sclerotinia next year……
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  • Issues of the week: August 18, 2010 — Lygus bug numbers keep rising in central Alberta, with counts in some fields at 10 times economic spray thresholds. If spraying, pay attention to pre-harvest intervals. Sclerotinia stem rot is flourishing in some fields in the western Prairies, especially fields not given a preventative spray at flowering.……
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  • Peace (B.C. and Alberta): Swathing is well underway in the central, south and west regions. These areas were dry all season but did finally get some rain — up to half an inch — in the past week just when general swathing began. Swathing has just started in the north, where crops look very good.……
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  • Pre-harvest glyphosate tip. Some growers have a lot of big weeds to deal with at harvest. Pre-harvest weed control may be beneficial to speed up cutting and to keep green weed seeds and green weed material out of the combine hopper. Remember that pre-harvest glyphosate must be applied AFTER 30% seed colour change (which corresponds……
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  • Sclerotinia stem rot infestations are high in many areas and the disease will continue to advance even after the crop is swathed. “Sclerotinia is showing up like gangbusters” in northeast Alberta, says Doug Moisey, CCC senior agronomy specialist for the region. Alternaria has also been reported. It is too late for fungicide application, given pre-harvest intervals……
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  • Lots of crop is short this year, and with heavy rains in spots last week, some of that short crop is now lodged. As noted in Canola Watch the previous two weeks, swathing is preferred over straight cutting for short crop — even when lodged. Here’s a recap of tips for swathing short lodged crop:……
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