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Red Deer County News

Posted on: October 9, 2019

Clubroot Update

Red Deer County Clubroot Update_pic

As of September 20, 79 field inspections have been completed out of 150. So far, 11 fields have been confirmed with clubroot in 2019. Of those 11 fields, 8 were previously unknown to have Clubroot. There  are now 41 confirmed fields in Red Deer County with this disease.

If you did not have time during the hustle and bustle of harvest, scouting can still be done and symptoms can be found on the roots into the fall. It is more difficult to find the disease post-harvest, because we are unable to use the visual clues on the plants to tell us where to start looking. However, exposed roots may still show symptoms.  Key areas to begin looking are:

  • At the field entrance; typically this is where clubroot will first infect a field.
  • Entrance to the right; if you enter your field and start your operation to the right, then clubroot will spread from the entrance to the right. If you usually start to the left, then check the roots to the left.
  • Water ways; clubroot spores can spread from water runs. Pull plants at low lying areas or along water pathways.
  • Field access points; oil and gas leases, quad paths, utility ROW’s, hunting access. Anywhere where activities bring foreign soil onto the field could be a source of contamination.
  • Random sampling; after inspecting high-risk locations in the field, fan out and use a “W” pattern to randomly sample for clubroot galls.

Clubroot galls will be starting to breakdown. The galls go from white, hard, clubs to brown, sawdust-like texture as they decay. If you are unsure if what you found is clubroot, send away the root sample to a lab for testing.

For more information visit clubroot.ca or call Red Deer County Agriculture Services at 403-342-8654. You can also check out Red Deer County’s clubroot page at rdcounty.ca/573/clubroot.

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