Emerald Ash Borer Infestation
Emerald Ash Borer (EAB) is an invasive beetle that infests and kills North American ash trees. The Emerald Ash Borer was first identified in New York City in October 2017.
With an estimated 121,000 ash trees in parks and on sidewalks across New York City, NYC Parks is taking action to limit the infestation and to preserve as many ash trees as possible.
Caring for Ash Trees
To help manage the infestation and preserve our ash trees, we are:
- treating our healthy ash trees in order to preserve as much of our tree canopy as possible.
- removing ash trees that will not benefit from treatment over the next eight to 10 years.
- replacing the lost ash trees with other species that will thrive in our urban environment.
- collecting seeds from specimen ash trees and preserving them for the future.
To learn more about Ash Trees please refer to the NYBG Field Guide to the Ash Trees of Northeastern United States.
Signs of Emerald Ash Borer Infestation
An Emerald Ash Borer (EAB) infestation can be characterized by a combination of the following:
- a thin canopy
- sprouts on the trunks of the trees
- small, D-shaped exit holes in the bark
- woodpecker activity
Report a Suspected Emerald Ash Borer Infestation
Found an ash tree with signs of Emerald Ash Borer (EAB) infestation? Let us know! You can report a suspected case of EAB infestation of street and park ash trees, or ash trees located on natural areas.
Report an Infestation of a Street Tree
Please submit a Hazardous/Poor Condition Tree Service Request by selecting the tree on our NYC Street Tree Map. Please select "this tree is unhealthy and hollow" and indicate, in the Additional Information section, that you are reporting an Emerald Ash Borer (EAB) sighting. You may also report a sighting by calling 311.
Report an Infestation of Park Tree
Please submit a Hazardous/Poor Condition Tree Service Request through our Tree Service Request page. Please select "this tree is unhealthy and hollow" and indicate, in the Additional Information section, that you are reporting an Emerald Ash Borer (EAB) sighting. You may also report a sighting by calling 311.
Report an Infestation of a Tree on Private Property
For questions regarding the treatment process of our ash trees, please email email@example.com.