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What can I do?

Do I have an Ash Tree?

Fall Foliage

Ash along John Nolen Bike Path



Ash seeds

References & more Information

How can I tell if my ash trees are infested with EAB?

Dieback of crown

dieback with offshoots

Symptoms & signs of EAB

  • Dieback of crown
  • Growth and offshoots/suckers at bottom of tree
  • Bark splits with serpentine galleries
  • D-shaped exit holes from emerging adult insects
  • Increased woodpecker activity
  • Adult EAB found on property
  • Larvae found in cut down tree or under peeled off bark

Bark splits with
S-shaped galleries

D-shaped exit hole

D-shaped exit hole

Woodpecker activity

It is difficult to detect emerald ash borer in newly infested trees, as it first infests the tops of ash trees and works its way down. Signs of infestation may include the presence of metallic-green beetles about a ½" long on or around ash trees, thinning and yellowing leaves, D-shaped holes in the bark of the trunk or branches, unusually large amounts of woodpecker activity as it feeds on the larvae and shoots growing from the base of the tree.

references and more information

Replacing Ash Trees after EAB Infestations

City Pre-Qualified Tree Contractors Any services on any city tree requires a permit issued by Forestry: City Pre-Qualified Contractors.
Wisconsin Department of Natural Resources, Michigan State University Extension, Ohio Department of Agriculture, U.S. Forest Service, Illinois Department of Agriculture.

Photo Credits Lexa Panessidi, State of Michigan, Minnesota Department of Natural Resources Archives, David Cappaert, Paul Wray, Iowa State University, Troy Kimoto, Canadian Food Inspection Agency