Spotted Lanternfly inPeoria, ILSPOTTED LANTERNFLY GUIDE
Peoria sits at the center of Illinois's 2025 spotted lanternfly watch zone, where state officials are monitoring for establishment along the Illinois River corridor. With roughly 113,000 residents and a significant rail and river freight presence, the city's transportation infrastructure creates multiple pathways for SLF introduction. Residents are urged to check vehicles, outdoor equipment, and freight for egg masses before moving them out of the region.
Where it's showing up
Key Neighborhoods
Highest activity zones
SLF Hotspots
Downtown Peoria
Active zone
East Bluff
Active zone
Northside
Active zone
Bartonville
Active zone
Peoria Heights
Active zone
Primary SLF food source
Tree of Heaven in Peoria, IL
Illinois River bottomlands around Peoria harbor established Tree of Heaven populations that provide prime SLF habitat if the pest arrives in force. I-74 median plantings and disturbed roadsides create dispersal corridors running through the city's core, while the Burlington Northern-Santa Fe rail corridor through Peoria is a documented SLF spread pathway connecting the region to infested areas to the east.
Identify Tree of Heaven →Local action resources
What To Do in Peoria, IL
Report a Sighting
Every sighting in Peoria, 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 Peoria, IL. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Peoria, IL.
One email per week. Your zip code. Your threat level. Your action plan. Know exactly what to do this week in Peoria, IL.