Bertha 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 moreJames 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 more…spray cost of $24.70/ha ($10.00/ac). Under drought conditions, where bertha armyworm feeding is concentrated on canola pods by early leaf drop, economic thresholds may be lower. Further reading: Bertha armyworm…
Read moreInsect trap counts are generally low across the Prairies, but bertha counts keep rising. Here are the latest provincial survey results. Bertha armyworm Counts are climbing for bertha armyworm moths….
Read more…will be here: Alberta trap counts Saskatchewan trap counts Manitoba trap counts Further reading: Canola Encyclopedia chapter on bertha armyworm PPMN bertha armyworm articles PPMN lygus prediction model for 2018…
Read more…threshold but are a concern on budding canola or rosettes), as well as diamondback moths and bertha armyworms. (Cabbage seedpod weevil scout and control tips) Where to get current pest…
Read moreA full-fledged bertha armyworm outbreak continues in the Peace region. Continue scouting, noting that fields at thresholds can be right beside fields with low counts. See scouting tips and threshold…
Read moreMature bertha armyworm. Source: Roy Ellis Bertha armyworm is one pest that can do a lot of damage in a short time. They’re large and eat a lot. Even within…
Read moreBertha 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 more…levels of larvae will be present, but indicates that while scouting canola in late-July and August look for the presence of potential feeding from bertha armyworm larvae. Bertha armyworms, various…
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