Signs of Infestation


Thinning of the tree’s crown

New shoots growing from the trunk or lower branches

S-shaped tunnels underneath the bark filled with fine sawdust

Small D-shaped emergence holes in the bark, the thinning of the crown

Adult beetles feeding on the foliage

If you live in upper portion of the Credit River watershed and suspect you may have identified Emerald Ash Borer or signs of infestation, please contact Credit Valley Conservation at the email invasive.species@creditvalleyca.ca.

If you live in the southern portion of the Credit River watershed (Brampton or Mississauga) and suspect you may have identified Emerald Ash Borer or signs of infestation, please contact your municipality or the Canadian Food Inspection Agency.