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Emerald Ash Borer

Emerald Ash Borer Tree Damage

Emerald ash borer (EAB) is a non-native, invasive insect that attacks and kills ash trees.

The first confirmed case of EAB in Minnesota was found in St. Paul in 2009, and it has since spread throughout Ramsey and Hennepin counties. EAB was confirmed in northeast Eden Prairie in April 2017.

Hennepin County is under EAB quarantine by the Minnesota Department of Agriculture, which means the public cannot transport any hardwood from Hennepin County to a non-quarantined county.

Treating EAB
Due to the discovery of EAB in Eden Prairie, the City contracted with Rainbow Treecare to treat public ash trees growing along streets and in parks. A citywide bulk discount is available through 2020 for Eden Prairie property owners to treat trees at least 10 inches in diameter and in good physical condition. The average cost to treat an ash tree with a 15-inch diameter trunk is about $80 and provides two to three years of protection. Schedule a free consultation at or call 952-767-6920.

Ash Trees on Public Property
More than 3,000 ash trees are on maintained City property — within right of ways and parks — and more than 2,000 are designated for removal. New trees representing a diverse pallet of species are being planted at one-and-a half times the rate of removal. Approximately half of all ash trees on maintained City property are being treated by a private contractor.

EAB Management Inventory Map

If you are concerned about specific trees located on public property, contact the Forestry and Natural Resources Division.

  • Emerald Ash Borer FAQ

    • Can I treat my ash tree myself?

    • Does the City replant trees in residential right of ways?

    • How do I identify an ash tree?

    • How long do ash trees need to be treated for EAB?

    • How safe are EAB treatments?

    • Is the tree in my front yard the City's responsibility?

    • Should all ash trees be treated for EAB?

    • What is emerald ash borer?

    • What should I do if I want to save an ash tree on my property?