Spotted Lanternfly inNaperville, ILSPOTTED LANTERNFLY GUIDE
Naperville — one of Chicago's largest western suburbs with roughly 149,000 residents — entered the SLF watch zone in 2024 as spotted lanternfly advanced into the Chicago metro. DuPage County's dense rail and road network, including the Metra BNSF line that runs through downtown Naperville, creates multiple introduction pathways from the east. The DuPage River corridor and former manufacturing sites along major arterials provide Tree of Heaven habitat that warrants close monitoring.
Where it's showing up
Key Neighborhoods
Highest activity zones
SLF Hotspots
Downtown Naperville
Active zone
Riverwalk
Active zone
East Naperville
Active zone
Warrenville Road
Active zone
75th Street corridor
Active zone
Primary SLF food source
Tree of Heaven in Naperville, IL
DuPage River banks through Naperville support Tree of Heaven in disturbed riparian habitat that creates prime SLF establishment zones in the heart of the western suburbs. The Metra BNSF corridor running through downtown Naperville is a key freight and commuter pathway with rail-margin Tree of Heaven representing a high-priority SLF spread vector. Former manufacturing sites along Warrenville Road and the 75th Street corridor have Tree of Heaven colonization in brownfield habitat that is an early-detection priority.
Identify Tree of Heaven →Local action resources
What To Do in Naperville, IL
Report a Sighting
Every sighting in Naperville, IL maps the invasion front. Report directly to Illinois Dept of Agriculture.
Report Now →Squish on Sight
See a spotted lanternfly? Kill it immediately — it is legal and encouraged in all states. Learn the best kill methods.
Full Fight Guide →Map ToH in Your Block
Tree of Heaven removal cuts off SLF food supply. Add ToH sightings to the community map to guide removal efforts.
View Sighting Map →Statewide resources
Full IL State Guide
County-level data, quarantine zones, treatment guides, and agency resources for the entire state.
See the full IL guide →Community intelligence
Live Sighting Map
See where SLF has been spotted near you in Naperville, IL. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Naperville, IL.
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