Return to Canola Council Home
Buffer zones or strips come in all shapes and sizes, and are designed to protect sensitive areas. Sensitive areas include permanent vegetation to maintain good water quality (riparian areas around rivers, lakes and ponds), control erosion (shelterbelts) or provide wildlife habitat. These areas are also typically habitat for pollinators and other beneficial insects…
Insects other
-
-
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… -
Alberta, Saskatchewan and Manitoba will be doing bertha armyworm and diamondback moth surveys again in 2018. To put up a trap and help with the monitoring program (including trap checking), please contact your provincial entomologist: Alberta: Email Shelley Barkley at Shelley.Barkley@gov.ab.ca or Scott Meers at Scott.Meers@gov.ab.ca Saskatchewan: Email James Tansey at james.tansey@gov.sk.ca. Manitoba: Email John Gavloski at john.Gavloski@gov.mb.ca…
-
Prairie Pest Monitoring Network (PPMN) regional maps for insect pests affecting canola are provided in this article… -
The Field Heroes website shows how natural enemies can help manage insect pest populations. Scouting is still necessary because beneficial insects do not always keep pest damage below economic levels, but spraying without consideration for economic thresholds can hurt the farm bottomline and also cause unnecessary damage to these beneficial insects… -
With each canola seed decision, growers face this question: Would a seed treatment upgrade to improve management of flea beetles and cutworms provide a return on investment? A review of flea beetle and cutworm scouting notes from the past few years will help with this decision…
-
Butterflies have siphoning mouth parts, much like a straw. They are harmless to crops and may actually provide some pollination benefit. Butterfly larvae from these three species will feed on crops, but are not major pests of canola and rarely cause enough damage to warrant a spray… -
While some areas are reporting higher numbers of diamondback moth larvae (shown above), it takes 100-150 larvae per square metre in immature to flowering plants or 200 to 300 larvae per square metre in plants with flowers and pods to cause enough damage to warrant a spray. Natural controls, including beneficial insects, tend to keep numbers below thresholds… -
This article provides a review of thresholds for major insect pests of canola, as well as background on how they were established and how following thresholds can improve profitability…
