Tree management

​Emerald ash borer Emerald Ash Borer

The emerald ash borer (EAB) is a metallic green beetle that bores into ash trees eating the tissues beneath the bark, eventually killing the tree. This non-native insect was first found in the United States near Detroit, Michigan in 2002. 

The EAB is now found in 30 states and in 25 counties in North Carolina, including Mecklenburg County. Hundreds of millions of trees have been killed by the EAB across the country. The insect was detected in Charlotte in May of 2017. Report possible sighting of EAB to 800-206-9333 or newpest@ncagr.gov

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​All species of ash trees are susceptible.  This includes all four species native to North Carolina - white ash, green ash, Carolina ash, and pumpkin ash. 

​The larvae of the beetle bore into the bark and feed on the tissues of the tree. This prevents the movement of nutrients and water within the tree, eventually causing it to die.

​The adult leaves a “D”-shaped exit hole in the bark about 1/8 inch in diameter when it exits the tree. The canopy of the tree begins to thin, and dieback begins at the top of the tree. Most of the canopy will be dead within two to five years of when symptoms are first observed.

​Insecticides are available for those wishing to protect high-value ornamental trees. Re-treatment must take place every one to two years. Contact a certified arborist for more information on treatment options. Also, consult this Emerald Ash Borer insecticide guide​.

​It is estimated that the City manages 1,300 ash trees in the public right of way.​

​Consult this document​ to find out where the EAB has been spotted in North Carolina.

​Refer to this document​ for a handy guide to identifying ash trees that are vulnerable to the Emerald Ash Borer.

City of Charlotte Ash Tree Map​​​​​​​​​​​​​​​​​​​​​​​​​​​​

In response to the EAB threat, City arborists conducted a tree inventory project in 2017 of all known ash trees that are located in the City's rights-of-way. Using the data, the City developed an EAB management plan focusing on proactively managing street trees to protect, preserve and restore Charlotte's tree canopy.​

This map displays all ash street trees.  Zoom in to see ash tree locations and click on a tree. From there, you can send a tree care service request, report possible EAB detection or ask for more information.

The City has placed traps throughout the Charlotte area in close proximity to ash trees in order to detect the presence of the EAB. Trap locations are displayed on the map with a blue triangle, which you can click on to see what the traps look like.​​​​​​​​