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Lesson 5Lesson 5


Action – Arrange to visit an area with edge modification treatments.

Key points, before visiting the site…

  • Obtain a description of the treatment history, productivity and costs.
  • Find out if the treatment included an evaluation of windthrow risk and expected level of damage without treatment.
  • Enquire whether the treatment plan included an evaluation of the effectiveness of treatment at reducing damage.
  • Consider the operational variables for the treatment (tree height, branch size, percent of crown removed, tree classes treated).
  • Consider alternative edge modification strategies and equipment that might have been employed.



Forest Service BC
Forest Renewal BC