Tree-of-Heaven Removal: Chicago vs Oak Park
How do tree-of-heaven removal rules compare between Chicago, IL and Oak Park, IL?
Chicago and Oak Park have similar restriction levels.
Chicago, IL
Cook County
Chicago Bureau of Forestry treats Ailanthus altissima as a removable nuisance species on city parkways and parks under MCC 10-32. Illinois Department of Agriculture lists it as an invasive concern, especially because it hosts the spotted lanternfly.
View full Chicago rules →Oak Park, IL
Cook County
Tree of Heaven (Ailanthus altissima) is targeted for removal by Forest Preserves of Cook County under invasive-species management because it hosts the Spotted Lanternfly. Illinois Exotic Weed Act 525 ILCS 10 also lists Ailanthus, requiring landowner control on certain properties.
View full Oak Park rules →Key Facts Comparison
| Fact | Chicago | Oak Park |
|---|---|---|
| Species | Ailanthus altissima | - |
| City code | MCC 10-32 and 7-28-120 | - |
| State listing | Not Exotic Weed Act listed | - |
| Pest concern | Hosts spotted lanternfly | Spotted Lanternfly host |
| City removal | Bureau of Forestry parkways | - |
| Statute | - | 525 ILCS 10 Exotic Weed Act |
| Forest Preserve role | - | Active removal program |
| Detection | - | Cook County 2023 |
Highlighted rows indicate differences between cities.
Chicago FAQ
Must I remove a tree-of-heaven from my yard?
Not automatically. Illinois law does not list it. But if it spreads, drops limbs, or harbors lanternfly, you can be cited under MCC 7-28-120 for a public nuisance and required to remove it at your expense.
Will Chicago cut a tree-of-heaven for free?
Only if it sits on a city parkway or park district land. Call 311 to request Bureau of Forestry inspection. Trees on private property are owner responsibility, with herbicide cut-stump treatment recommended.
Oak Park FAQ
Must I remove Tree of Heaven on my Cook County property?
Removal is encouraged but not mandatory for most parcels. Properties along railroads or highways may receive removal notices from the Illinois Department of Agriculture under 525 ILCS 10.
Why focus on this species?
Tree of Heaven is the preferred host of Spotted Lanternfly, an invasive pest threatening Illinois agriculture, hardwoods, and urban trees. Removal slows lanternfly spread regionally.
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