Emerald Ash Borer Quarantine and Regulatory Information

Emerald ash borer (EAB) is a serious invasive tree pest, and consequently a quarantine has been placed to help slow the spread of EAB to other areas in Minnesota (see Emerald Ash Borer Status in our state).

These are considered regulated articles by the MDA:

  • Ash logs
  • Ash tree waste
  • Ash chips and mulch
  • All firewood (non-coniferous)

Emerald Ash Borer Quarantined Counties

The MDA has confirmed EAB in Watonwan County. There are now 38 counties in the state with known EAB infestations. The MDA has enacted a quarantine to limit the movement of firewood and ash material into Minnesota and out of infested counties. The MDA issues quarantines for all counties known to have EAB to reduce the risk of further spreading the tree-killing insect. 

A virtual informational meeting for residents and tree care professionals in Watonwan County was held on Wednesday, January 18, 2023. Experts from MDA gave a brief presentation followed by a question-and-answer session. The meeting was recorded and is available for viewing

Emerald Ash Borer Virtual informational Meeting - Recorded Webinar (45 minutes)

The comment period for the emergency quarantine is January 6, 2023 through February 17, 2023 with the formal quarantine to be adopted on February 21, 2023. All comments or questions regarding the proposed quarantine can be made to kimberly.tcremers@state.mn.us.

No regulated articles are legally allowed to be moved into Minnesota without the written approval and the proper documentation provided to the Commissioner of Agriculture.

No regulated articles are legally allowed to move outside of a quarantine (untreated or treated), unless they are accompanied by a MDA certificate. MDA Certificates are only available when a Compliance Agreement (CA) is signed between the Minnesota Department of Agriculture and the a company, city, county, agency, or organization interested in moving the regulated article.

A CA is a written agreement between a person and a regulatory agency to achieve compliance with regulatory requirements. For more information about CAs please visit our Frequently Asked Questions or contact the Report A Pest Hotline.