Home / Canola Watch / Insects / Diamondback moth
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Diamondback moth larvae are generally low across the Prairies so far, but one hot spot has been noted in Rural Municipality 10 in Saskatchewan. This R.M. is south of Regina, near the U.S. border. Some populations of diamondback moth above the economic threshold have also been found in Eastern Manitoba recently…
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Check pods for feeding from bertha armyworm, diamondback moth larvae, lygus and other pests. If any pod feeders are found, make accurate counts in at least three locations 50 metres apart in each field. Then make spray decisions based on thresholds…
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As predicted by moth traps, the Peace region has fields at thresholds. Beyond there, a few field here and there across the Prairies have been sprayed but the worm is not a problem on most fields…
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The most damaging of the 'green' worms is the bertha armyworm, which can be green, brown or black…
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The three most common pod munchers are bertha armyworm, diamondback moth larvae and lygus bugs. Hot spots can sometimes be isolated to specific fields, so check each field. Before spraying, make sure insects counts are at or above economic thresholds. Applications made when insect numbers are below thresholds will not provide a positive return on investment and can do unnecessary…
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Diamondback moth larvae are at noticeable levels in many canola fields in the Eastern and southern Interlake areas of Manitoba. But levels are generally below the economic threshold…
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Insect trap counts are generally low across the Prairies, but bertha counts keep rising. Here are the latest provincial survey results…
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Of particular interest are those trajectories that, prior to their arrival in Canada, originated over northwestern and southern USA and Mexico – anywhere diamondback moth populations overwinter and adults are actively migrating…
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Test your diamondback management skills with these four questions…
