Emerald Ash Borer

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What is it?

Emerald Ash Borer (EAB) is a non-native insect originating from Asia. This invasive pest's larvae have killed millions of Ash trees across the United States. 

Is it in Edina?

EAB was found for the first time in Edina on April 13, 2018,  in a tree in the northwest section of the City. The discovery was expected because the borer has already killed trees in Minneapolis, Richfield, Bloomington and Eden Prairie.

Can I save my trees?

Chemical treatments are available to help protect healthy Ash trees or those minimally affected. Application must be done every two to three years. It is imperative treatment start early, so anyone with an Ash tree on their property should contact a private arborist or tree care professional right away to evaluate their options.

Where do I start?

See the Ash tree site from Hennepin County to learn how to identify, preserve, remove and replant trees. The Minnesota Department of Agriculture has a comprehensive site about Emerald Ash Borer and tree care.

If you’re unsure about the trees in your yard, here are some tips:

  • Be sure you’ve identified an Ash tree. This is an important first step since EAB only feeds on Ash trees. See the Hennepin site or the Ash Tree Identification guide for photos and more information.
  • Look for woodpecker damage. Woodpeckers like EAB larvae and woodpecker holes may indicate the presence of EAB.
  • Check for bark cracks. EAB larvae tunneling under the bark can cause the bark to split open, revealing S-shaped or curvy tunnels underneath.
  • Contact a professional. If you feel your Ash tree may be infested with EAB, contact a tree care professional immediately.