Home / Canola Watch / Insects / Page 25
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Slow canola emergence due to cool soils can increase the risks from seedling diseases and from flea beetles…
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The Canola Council of Canada agronomy team came up with 12 agronomy priorities for 2015, and then ranked them. Here are the top 10, with our highest ranked topic placed first. We will cover these topics in more detail throughout 2015…
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Flea beetles feeding on pods is unlikely to cause an economic loss. Entomologists have not set thresholds for late season flea beetle feeding, but it’s generally believed that numbers have to be very high — perhaps 100 per plant — before economic losses occur. You may also note that flea beetles can be highly variable at this time of year,…
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Thrips cause curled or twisted pods on canola and can also cause damage like that shown in the photo above. The good news is that economic levels of damage from thrips are very rare…
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Whether you’re waiting to get into the field or already cutting your crop, having a proper storage facility is critical. If you had last year’s grain in your bins for longer than usual, and into the spring when grain temperatures were no longer cold enough over specific durations to kill most insects, you may want to confirm your storage locations…
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You may be sick of reading about it, but that’s better than being sick of finding it. Lygus bug continues to be a hot topic for growers in a number of locations across the prairies. While numbers are surprisingly high, they may still not be high enough to warrant the cost of spraying. Don’t let the idea of revenge influence…
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Lygus bugs are still at high numbers in some regions, mostly in Alberta. If sweep netting shows high lygus numbers, here are five considerations before spraying…
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Many canola fields are within 5 to 10 days of swathing, which limits the choices for insecticides based on pre-harvest intervals. Here are the pre-harvest intervals for insecticides registered for insect control in canola. Try the interactive PHI tool at www.spraytoswath.ca…
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To identify a problem, start with careful scouting. Use this checklist and then move on to the Canola Diagnostic Tool…