•   Some Peace fields have 4-5 adults per sweep, prompting many farmers to spray at the bud stage. This is earlier than normally recommended, but with drought stress, canola may not be able to compensate for bud losses. Scout for signs of damage. Look for penetration marks at the base of the bud where adult……
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  • Early lygus bug pressure is reported in the Peace and in central Alberta near Penhold. CCC’s Peace region agronomy specialist Erin Brock has reports of 3-4 lygus bugs per bud cluster in some fields. There are no economic thresholds for lygus bug on canola at the bud stage. This early feeding is a concern but……
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  • Issues of the week June 16, 2010 — Spraying delays due to wet fields, rain and wind have made for a “super weedy year.” Prepare to spray twice and use rates appropriate to the weed size. Cutworm spraying is reported all across the Prairies, and the threat will continue for another week at least…
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  • Growers all across the Prairies are spraying for cutworm. The 3 key species — redbacked, pale western and dingy — feed until they’re an inch to inch-and-a-half long, the molting stage. Redbacked tend to feed longer in the season than the other two. Scott Meers, entomologist with Alberta Agriculture, says many cutworms are still under an……
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  • Timing needs to be right for both the weeds and the insect. Presently there are no insecticide tank mixes registered for glyphosate, Liberty or Odyssey for applications in canola. Recent PMRA guidelines advise that any tank mixing products that are registered for use in canola is acceptable — even if the tank mix itself isn’t……
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  • CCC senior agronomy specialist Jim Bessel says that if you see ravens or seagulls or other birds congregating in your fields, get out and scout for cutworms. Wet weather often forces cutworms to the surface, where birds will eat them. Note that cutworms can cause crop damage from the surface, feeding on above-ground parts of canola……
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  • John Gavloski, provincial entomologist with Manitoba Agriculture, Food and Rural Initiatives (MAFRI), says crop insurance assessed a field of canola south of Bagot, Man., last week because of cutworm damage. Scott Hartley, provincial entomologist with the Saskatchewan Ministry of Agriculture, recommends that growers scout closely for cutworms based on their higher activity in 2009 and……
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  • Here’s another example why proper pest identification is important. The “suspected” redbacked cutworms found in the Carrot River area last week turned out to be cranefly larvae, commonly called “leatherjackets.” They were the same size as cutworms but were at a more advanced stage than redbacked cutworms would be at this time of year. They……
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