Emerald Ash Borer Update

Emerald Ash Borer Update
Posted on 07/06/2020

Emerald Ash Borer (EAB) has been a concern in Iowa for several years now. The Emerald Ash Borer (EAB) insect and the impact this invasive species has on Ash trees is something Norwalk residents need to be aware of.

We have found the symptoms of EAB to be in our community. Most untreated Ash trees have symptoms ranging from initial dieback in the upper canopy to completely dying. Trees affected by EAB become dangerously brittle and are prone to complete failure. These trees could fall on buildings, cars or in the street without warning. 

Norwalk Code, 151, references “Trimming Trees, Disease Control, and Inspection and Removal”. If the City deems a tree a nuisance and constitutes it a hazard to neighboring private property or public safety, they can order removal of such tree. 

The City is currently surveying all City-owned property with Ash trees, including right of ways, and making a plan for removal of the symptomatic trees. The City will begin implementing that plan in the near future.

Likewise, the City is asking property owners to survey their property for Ash trees. Anyone with Ash trees is asked to begin making a plan to remove those trees. We would like to give plenty of notice, as we know this can be costly. In the spring of 2021, we will begin a more aggressive approach to include notifications.   

If you have any questions regarding this information, please call the Public Works staff at (515) 981-9527 or email at publicworks@norwalk.iowa.gov.

For more information on EAB please see the Iowa DNR’s website.  https://www.iowadnr.gov/conservation/forestry/forest-health/emerald-ash-borer

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