Search the Miamisburg Website

Local Government
City Services
Parks & Recreation


Emerald Ash Borer Print E-mail

Emerald Ash Borer Leaving A Deadly Track
The Emerald Ash Borer (EAB) is a non-native insect that is attacking the Midwest’s ash trees. This insect has been verified to be in our region and is now devastating hundreds of ash trees in Miamisburg. Untreated, all ash trees in our city will die within a few short years.  All counties in Ohio are under the Emerald Ash Borer quarantine which indicates a strong presence of the infestation as well as restricts the movement of firewood outside of the state. 
The EAB is a member of the metallic wood boring beetle family. It attacks all native, North American ash trees regardless of the tree's health. Once an EAB infestation occurs, it kills the tree in three to five years.  EAB is a slightly illusive insect because it spends the majority of its life under the bark. The larvae are flat, creamy white, have bell-shaped segments and are about an inch long. Adult EAB are dark metallic green and a half-inch long.


EAB Life Cycle

From late spring through autumn, adult beetles mate, and the female lays 60-90 individual eggs on ash tree bark. The eggs hatch seven to ten days later, and the larvae tunnel into the tree just beneath the bark where they feed on the live tissue of the tree. The larvae's S-shaped feeding pattern, called galleries, disrupts the transport of water and nutrients, eventually killing the tree. Over the winter, the larvae remain under the bark. When warmer weather arrives, larvae enter the pupil stage and then transform into adults. The beetles emerge through the bark leaving behind 1/8 inch, distinctive D-shaped exit holes. The adults feed on leaves before mating and laying eggs, starting the cycle over again.

How to Tell if Your Tree Has EAB

There are several things that may indicate your ash tree has EAB:

1. Branch dieback at the top of the tree

2. Vertical splits in the bark

3. Sprouting on the trunk and at the base of the tree

4. Scratched bark from woodpeckers feeding on the larvae

5. Distinct 1/8 inch, D-shaped exit holes in the bark

6. S-shaped, sawdust-packed galleries under the bark

EAB is very difficult to detect until a tree has been infested for at least a year because the larvae feed from the top of the tree first. When looking for EAB, it is important to peel off the bark to look for the larvae and the galleries.

The City of Miamisburg and the Citizen Urban Forestry Advisory Board is currently participating on a local Emerald Ash Borer Task Force organized through the Miami Valley Communications Council. This task force serves as a clearing house for additional information concerning EAB and is instrumental in developing an EAB Management Plan for each municipality.

For more information, click the links below:

Ohio Department of Agriculture EAB website – provides information on EAB in Ohio as well as how to select a local arborist and treatment options.

How to Identify EAB – provides links to information on how to identify EAB at your home or business

How to Identify Ash Trees – provides links to information on identifying Ash trees at your home or business

Signs and Symptoms of EAB – provides warning signs and symptoms of infested trees

Treating EAB infested trees – provides information on treatment of EAB infested trees

My Ash Tree is Dead…Now What Do I Do? – information on handling a dead or dying ash tree at your home or business

If you suspect you have EAB in your trees in Ohio call 1-888-OHIO-EAB.   




Miamisburg Civic Center 10 North First Street, Miamisburg OH 45342 | phone: 937.866.3303 | fax: 937. 866. 0891
Welcome to the City of Miamisburg Ohio