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The action threshold for flea beetles in canola crops in Canada is an average leaf area loss of 25 per cent or more. How do you make that assessment?…
How to assess leaf area loss from flea beetles
June 3, 2020
Flea beetle
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Tips for spraying at night
June 3, 2020
from the perspectives of herbicide uptake, efficacy and label requirements, night spraying is OK as long as weeds are not under any stress and are growing actively going into the evening…
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QUIZ – flea beetle risks
May 27, 2020
Four questions that will help with your approach to flea beetle scouting and risk assessment…
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Insects watch: Flea beetles, cutworms
May 27, 2020
Cutworm feeding results in notched, wilted, dead or cut-off plants. Patches of missing plants could also be cutworms. Include cutworms on the scouting checklist for the first one to three weeks after emergence…
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PODCAST: Flea beetle behaviour
May 21, 2020
Jim Tansey and Keith Gabert talk about flea beetles – including how far they travel to find the first canola crops, major differences between striped and crucifer species, and how long the risk can last…
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Striped flea beetles feeding on volunteers
May 13, 2020
Striped flea beetles tend to emerge earlier than crucifer flea beetles, and some are already feeding on canola volunteers. Are first-emerging crops at higher risk?…
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Insect update
August 21, 2019
As predicted by moth traps, the Peace region has fields at thresholds. Beyond there, a few field here and there across the Prairies have been sprayed but the worm is not a problem on most fields…
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Flea beetles: Why do they seem worse?
June 5, 2019
The flea beetle situation seems worse than usual. The simplest reason seems the most logical: Warm and dry weather favours flea beetle emergence and activity. The same dry weather slows crop growth, leaving plants at a vulnerable small size for longer…
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Make the right flea beetle spray decision: 8 steps
May 15, 2019
While only a small percentage of canola fields tend to require foliar insecticides to manage flea beetles in addition to seed treatment, all fields should be monitored to assess the potential threat. Begin monitoring right after emergence and through until at least the four-leaf stage…