Emerald Ash Borer (EAB) Information

As of now, you can find the original press release for the discovery of Emerald Ash Borer in New Prague as well as the City's Emerald Ash Borer Management Plan.  


The City was awarded grant from the DNR for EAB efforts locally, details of which will be posted on this page.  







Public Tree Survey

Bolton & Menk conducted a Public Tree Inventory in all the parks in New Prague. There were a total of 3,291 trees recorded in the survey and 21.1% of those trees were Ash species. Of the Ash trees, 27.5% are potentially or infected by Emerald Ash Borer. In the study, the Ash trees were also classified by trunk diameter at designated breast height (DBH), health of the tree, trunk damage, branch damage, and crown damage. Approximately 36.3% of the Ash trees are structurally sound or an average tree but the remaining 63.4% of the Ash trees are structurally compromised, heavily diseased, nearly dead, or dead. The data provided in the study will help the city create an approach to remove and treat each tree. To read the full report, refer to the attachment at the end of this webpage.



For Immediate Release:


Emerald ash borer discovered in the City of New Prague

The City of New Prague encourages residents to look for signs of EAB

The Minnesota Department of Agriculture (MDA) confirmed an emerald ash borer (EAB) infestation in the City of New Prague on 12/6/21 at Northside Park. The City’s Parks Department staff reported two ash trees in Northside Park with bark cracks and woodpecker damage in the tree canopy, a tell-tale sign of possible EAB infestation, to the MDA for confirmation.

There are several things residents should look for when checking for emerald ash borer.

  • Be Sure You’ve Identified An Ash Tree: This is an important first step since EAB only feeds on ash trees. Ash have opposite branching – meaning branches come off the trunk directly across from each other. On older trees, the bark is in a tight, diamond-shaped pattern. Younger trees have a relatively smooth bark.
  • 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 the larval (S-shaped) tunnels underneath.
  • Contact A Professional: If you feel your ash tree may be infested with EAB, contact a tree care professional, your city forester, or the MDA at arrest.the.pest@state.mn.us or 888-545-6684 (voicemail).


Emerald ash borer larvae kill ash trees by tunneling under the bark and feeding on the part of the tree that moves nutrients up and down the trunk. Minnesota is highly susceptible to the destruction caused by this invasive insect. The state has approximately one billion ash trees, the most of any state in the nation.


The biggest risk of spreading EAB comes from people unknowingly moving firewood or other ash products harboring larvae. There are three easy steps residents can take to keep EAB from spreading:

  1. Don’t transport firewood. Buy firewood locally from approved vendors, and burn it where you buy it;
  2. Be aware of the quarantine restrictions. If you live in a quarantined county, be aware of the restrictions on movement of products such as ash trees, wood chips, and firewood; and,
  3. Watch your ash trees for infestation. If you think your ash tree is infested, go to https://www.mda.state.mn.us/eab-info-homeowners for resources on identifying EAB, how to hire tree care professionals, and insecticide options for protecting your ash tree.

For more information on emerald ash borer, go to www.mda.state.mn.us/eab.