Skip to main content

Emerald Ash Borer Infestation in the United States

By Stein Tree
Posted on August 18, 2021

The emerald ash borer (EAB), a metallic green insect accidentally brought to the United States (likely from wood packing materials) in 2002, has been found in 35 states as of 2021. The insect was found in Pennsylvania in 2007 and Delaware in 2016. Since its discovery as an invasive species, the emerald ash borer infestation has grown to several states in the U.S. and caused massive damage to tens of millions of ash trees in North America.

The emerald ash borer attacks ash trees, and has destroyed the ash population in many of the states where infestation has occurred. Agencies have been working to fight the EAB infestation through measures such as EAB quarantines, but the insects continue to be discovered in new areas. Some treatments are available, and Stein Tree Service is licensed to apply the necessary insecticides in Delaware and Pennsylvania.

Our infographic highlights how much of an impact the emerald ash borer has had on peoples’ trees, how far it has spread, and what you can do about it.

Preventing Emerald Ash Borer Infestation

One of the methods of preventing or halting the spread of emerald ash borer infestation is early detection. Homeowners should be vigilant and keep an eye out for potential signs of emerald ash borer presence or infested trees. Some of these signs and symptoms of an emerald ash borer infestation include the following:

  • Thinning tree canopy
  • D-shaped exit holes in bark
  • S-shaped grooves in the tree under the bark
  • Unusually high woodpecker presence

If you notice any of these signs, have a professional inspect your trees to determine whether you need treatment to save your trees, or if tree removal may be necessary to protect your remaining trees.

Call Stein Tree for Inspection and Treatment for the Emerald Ash Borer

Stein Tree Service has been providing exceptional tree care for over 35 years and our certified arborists are trained to identify the emerald ash borer and other threats to your trees. For more information or a free consultation, call 610-723-8056.

Emerald Ash Borer Infestation Chart Stein Tree Service March 2017
  • This field is for validation purposes and should be left unchanged.