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Insect update
…possible when more than one species are feeding on key yield-producing areas — flowers, buds or pods — at the same time. For example, bertha armyworm, diamondback moth larvae and…
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Insect update: Limited threats
Lygus. Credit: Dan Johnson Lygus, grasshoppers, diamondback moth larvae and early bertha armyworms have been reported, as have thrips and swede midge damage, but generally nothing requiring significant widespread action….
Read moreInsect update: Beneficials, CSPW, root maggots
Banchus is a parasitoid of bertha armyworm. It can be harmed by unnecessary insecticide sprays. Source: Lloyd Dosdall Beneficials. Lygus, bertha armyworm and diamondback moth have a number of natural…
Read moreImprove pesticide ROI
…the Tricomalus perfectus wasp. —Some insects, like bertha armyworm, have a density dependence that can trigger and spread biological controls that keep the population in check naturally. We’ve never sprayed…
Read moreInsect update
…Survey 2019Download Cabbage seedpod weevil Bertha armyworm. Manitoba adult trap counts are generally low so far, with only one trap reporting more than 300 adults (cumulative for the year), which…
Read moreInsect update: Cutworms, flea beetles, grasshoppers
…larger proportion of eggs hatch. Read more. Insect monitoring: Diamondback moth catches are still low: Alberta Saskatchewan Bertha armyworm moth catches are just starting to ramp up (not yet to…
Read moreThe scouting toolkit
…full metre lengths will serve multiple purposes. With open sides, the square slips into the canopy more easily than a full square. For bertha armyworm, for example, lay down the…
Read moreTop 10 canola-related jobs for April
…risk maps. 8. Consider the valued surveyors. Surveys will start soon, which requires surveyors to be in the field. Among the benefits, these surveyors provide insect monitoring, including for bertha…
Read moreThe risks from high canola frequency
…bertha armyworm moth, diamond back moth, cabbage seedpod weevil and lygus bugs, do increase in severity as canola frequency and overall acres increase. However, these pests can be highly mobile…
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