Emerald Ash Borer

Emerald Ash Borer

The City has over 1,260 ash trees.  The Emerald Ash Borer (EAB) is a highly destructive, wood-boring insect that destroys ash trees. Without intervention, the City is at risk of losing a significant portion of its ash trees to EAB.  Several years ago, a treatment plan was prepared and by following this plan, we anticipate close to 97% of our ash trees being treated. 

Emerald Ash Borer Facts

  • The Emerald Ash Borer was initially discovered in Michigan in 2002
  • Its native to Asia and eastern Russia.
  • The adult EAB is about the size of a penny.
  • The adult female lays eggs on the bark or in bark crevices, the larvae chew through the outer layers of the bark and feed on the inner bark.
  • The larvae stage causes the destructive damage to the ash tree.
  • The adults live for about 20 days.

The treatment plan is a ten-year treatment with evaluation each year on the effectiveness of treatment.  The estimated cost for treatment over the ten-year period is 2.3 million.