General Information
Why is EAB important?
What does EAB Look Like?
What does an Ash Tree Look Like?
How Do I Know If My Trees Have EAB?
Where has EAB been found?
Firewood Regulations
State and Federal Quarantines
Quick Link for Industry
Management Options, Tips and Tools
For Homeowners
For Woodlot owners
For Communities
For Professionals
What Is Wisconsin Doing About EAB?
Wisconsin's Response Plan
Survey Program
Upcoming Events

Where has EAB been found?
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EAB was first discovered in North America near Detroit, Michigan in 2002. Since then the beetle has spread to Canada and more than a dozen states, including Wisconsin.

Emerald ash borer was found for the first time in Wisconsin in August 2008 near the community of Newburg, several miles northeast of West Bend.

More of Wisconsin is still free of emerald ash borer than not. Since 2008, emerald ash borer has been confirmed in many counties and municipalities. However, most counties where the pest has been found only have small areas of infestation. That is why it is still so important to follow quarantine rules and to limit the movement of ash wood and raw ash products. By taking these precautions, we slow the spread of emerald ash borer to the northern forests where most of Wisconsin's ash trees are, and also slow the spread in the south.

Related Documents
List of cities, villages and towns in Wisconsin where we have confirmed EAB. Be aware that EAB may be present, but undetected, in other places.

Map showing where EAB has been found within quarantined counties

Map showing where EAB has been found in the United States

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