Emerald Ash Borer (EAB) is a beetle native to northeastern Asia that feeds on ash trees. Infested trees die within three to five years. As a non-native insect, EAB lacks predators to keep it in check. It was found in Concord in March 2013, and the list of towns with known infestations continues to grow.
Movement of ash wood and ash wood products is no longer regulated within New Hampshire. However, moving ash risks spreading emerald ash borer. We encourage professionals and landowners to follow best management practices when moving ash.
PLEASE NOTE: The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) recently published a final rule that removes the federal domestic emerald ash borer (EAB) quarantine regulations. The final rule is effective January 14, 2021. States may enact quarantines to prevent the introduction of emerald ash borer. Regulatory requirements will vary by state. Entities that export ash wood and ash wood products should check with their local state Department of Agriculture for assistance with requirements. In NH, contact (603) 271-3681.
You can help protect New Hampshire's forests by reporting suspect trees or insects; considering insecticide treatment of some trees to keep ash in the understory; being aware of the risks of spreading EAB; and using best management practices to avoid transporting this pest to your favorite outdoor spot.
It takes years to decades for EAB to spread naturally; humans can spread it in hours.
Generally infested area
Emerald ash borer is in this zone, though not necessarily in all ash trees.
Potential expansion area
Emerald ash borer isn't known to be in the area, but the area is within 10 miles of the outer limits of the known infestation. There is a high probability emerald ash borer will spread naturally to this zone within a few years.
Emerald ash borer isn't known to be in the area and it is more than 10 miles from the known infestation.
Ash Tree Identification
- Identify ash - video
- Ash Tree Identification - New Hampshire fact sheet
- Identify ash trees
- Ash Tree Identification Guide (with common look-alikes)
Quick Fact Sheets
- Is it EAB or Not?
- A Fun Video to Help you ID EAB
- Frequently Asked Questions
- Best Practices to Help Stop the Spread of Emerald Ash Borer in New Hampshire (rack card)
- EAB ID Sheet
- Saving Your High-Value Ash
- Disposal of EAB Generated Waste
- EAB in New Hampshire poster
- New England EAB Quarantines
- Map of Vermont Infestation