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Bertha armyworm scouting tips
These are all bertha armyworms, showing the variation in color that can make idenfication a challenge. The number of bertha armyworm larvae on a farm last year is not a…
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Be on alert for bertha armyworms
Bertha armyworm adult moth counts were generally low across the Prairies in 2017. A few trap sites did enter the moderate risk level, but none was high. See provincial counts…
Read moreInsect update — Bertha armyworm, thrips
Bertha armyworm has many colour patterns, but all have the orange stripe down each side. Bertha armyworm moth populations continue to rise, with more areas at moderate to high risk….
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 moreBertha Armyworm still spraying in some areas
…acre. Click here for more information on bertha armyworm. Click here for more information on how to identify insect larva such as bertha armyworm, imported cabbage worm, and diamondback moth….
Read moreIdentify green worms accurately
…armyworm. The looper has white stripes down the sides and back, while bertha armyworm will have a yellow/orange stripe along each side. Alfalfa looper “loops” when it crawls, while bertha…
Read moreQuestions of the Week
…a sweep net. The economic threshold is 25-40 CSPW per 10 sweeps generally across the field. (Cabbage seedpod weevil scout and control tips) Bertha armyworm: heat and advanced growing degree…
Read moreBertha armyworms work their way up
…are actively feeding. Do not apply during warm afternoons. MAFRI’s new bertha armyworm factsheet. Exit holes. While scouting for bertha and lygus, check pods for exit holes. Growers in southern…
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…
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