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Issues of the Week
…for insect feeding is late flowering and through pod fill when canola plants have little capacity to recover. Lygus, diamondback moth and bertha armyworm are the big ones to watch…
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CanoLAB 2013 in St. Albert, Brandon and Saskatoon
…up close look at how to identify and monitor various pests and beneficial insects, including bertha armyworm, lygus bugs and more. Scott Meers is the lead instructor with Ravi Subramanium,…
Read moreTop 10 things to look for during harvest down days
…a harvest plant count. 6. Insects. You might still find bertha armyworm, lygus, flea beetles, grasshoppers and even cutworms at work this late in the season. But with harvest so…
Read moreWhen you consider an application, consider your PHIs
While the insect threats for the season are on the decline, there may be a couple instances when bertha armyworm, grasshoppers or rare cases high lygus numbers require a late…
Read moreOur most-clicked articles over the past week
…other reasons for missing pods Saskatchewan: Insect Update: Bertha, diamondback and weevil counts Alberta: Hot days and 6 other reasons for missing pods To read all of last week’s Canola…
Read moreCombining thresholds for multiple insects
Many canola fields have a combination of insects feeding on the crop, including lygus bugs and cabbage seedpod weevils, or bertha armyworm and zebra caterpillars. Economic spray thresholds are calculated…
Read moreIssues of the week
…plants to look for root maggot, scout for bertha armyworm, lygus and whatever other insects may be feeding. Bertha numbers could be high this year, given that cumulative counts in…
Read moreTank mixes of herbicides and insecticides or fungicides
…put beneficials at risk. Beneficial insects provide valuable natural control of many canola insect pests, including diamondback moth, lygus bug and bertha armyworm. Spraying these pests when economic thresholds predict…
Read moreVisit fieldheroes.ca to learn more about beneficials
…Diadegma insularis and Microplitis plutellae. Read more. Parasitism of bertha armyworm by the parasitoid wasp Banchus flavescens may exceed 40% in some years. Read more. Ground beetles are among the…
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