Manitoba Disease & Insect Update – August 8th

A Manitoba Insect and Disease Update for the week of August 4-8, 2014 has been posted at: http://www.gov.mb.ca/agriculture/crops/seasonal-reports/insect-report-archive/insect-update-2014-08-08.html.

Highlights Include:

  • Scouting for canola diseases has begun. Blackleg, root rots, white mold, aster yellows and alternaria pod blight will be surveyed.
  • Lygus Bugs in canola – The growth stage where canola has the most potential to have yield reduced by Lygus bugs is the early-podding stage.
  • In corn, scouting for Goss’s wilt and leaf blight disease will help growers understand the status in their crop. A few plants are showing common smut, which is not a serious disease.
  • Some have been asking about red mites seen on the wings of grasshoppers.

Red mites on grasshoppers.

Submitted by: John Gavloski, Entomologist & Vikram Bisht, Pathologist, MAFRD


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