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Agronomy: Steps to make an accurate diagnosis
…the way through to harvest (bertha armyworms, for example). Insects often leave fairly obvious feeding patterns and they are usually found at or near the scene. Some can work virtually…
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Rotations and risk management
…verticillium stripe and flying insects, such as flea beetle, bertha armyworm moth, diamond back moth, cabbage seedpod weevil and lygus bugs, do increase in severity as canola frequency and overall…
Read moreBertha armyworm: Updates and scouting tips
…but the Canola Encyclopedia section on bertha armyworm also lists the specific bertha products along with their pre-harvest intervals. Dig deeper Canola Watch · Bertha armyworm – Shelley Barkley and…
Read moreBertha armyworm at thresholds in Peace
…noctuid family. As a result – despite good coverage with the bertha armyworm monitoring, which excels at picking up larger outbreaks – small pockets of bertha armyworm do pop up…
Read moreLook for berthas
…should be scouted for sure. See Saskatchewan’s risk map. Bertha armyworm. Photo credit: John Gavloski How can outbreaks occur in areas with low moth counts? Bertha armyworm moths are very…
Read moreBertha armyworm: Hot pockets, scouting, rain
…is good. But what this one field and the ensuing scouting demonstrated is that bertha armyworm population spikes can be highly localized. Bertha armyworms at high numbers in a field…
Read moreBertha armyworm: Time to scout
James Tansey, provincial entomologist with the Saskatchewan Ministry of Agriculture, posted this tweet on August 4: Peak bertha emergence occurred between July 15 and July 22 in most regions of…
Read moreInsect update: Bertha armyworms and more
…900. Glenboro is the highest at 501. Read the Canola Encyclopedia for more on scouting and thresholds. Try last week’s quiz, which had a bertha theme. Bertha armyworm. Three colours….
Read moreMap of the Week – Bertha armyworm counts
Saskatchewan bertha army worm trap count results, as of July 11. A few potential hotspot are showing up. Alberta’s bertha map indicates a few spots with counts in the medium…
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