Spotted Lanternfly inIndianapolis, INSPOTTED LANTERNFLY GUIDE
Marion County confirmed SLF in 2023, placing Indianapolis — Indiana's capital and largest city — at the center of the state's early watch zone. The convergence of I-65, I-70, I-74, and I-465 makes Indianapolis one of the most critical Midwest freight crossroads, serving as both an introduction risk and a major potential dispersal hub for SLF moving deeper into the heartland. Indianapolis Motor Speedway's iconic racing events concentrate enormous seasonal vehicle traffic from across the country, creating a high-risk egg mass introduction pathway. Eagle Creek Reservoir park system and White River State Park provide urban green space with TOH habitat through the city core.
Where it's showing up
Key Neighborhoods
Highest activity zones
SLF Hotspots
Indianapolis Motor Speedway (massive seasonal vehicle transport events)
Active zone
I-65/I-70/I-74/I-465 major Midwest crossroads (primary freight and dispersal hub)
Active zone
Indianapolis International Airport perimeter
Active zone
Eagle Creek Reservoir and park system
Active zone
White River State Park urban green space
Active zone
Indiana State Fairgrounds (large seasonal event venue)
Active zone
Primary SLF food source
Tree of Heaven in Indianapolis, IN
The I-65/I-70/I-74/I-465 major Midwest crossroads at Indianapolis concentrates freight and commuter traffic from multiple directions — a convergence zone that is among the highest-risk SLF vehicle-dispersal nodes in the Midwest. Indianapolis Motor Speedway draws massive vehicle influxes from established SLF states during Indy 500 and other major racing events, making it a documented seasonal SLF introduction risk. Eagle Creek Reservoir park system has naturalized Tree of Heaven in disturbed park margins, and White River State Park's urban green space adds riparian TOH habitat through the downtown core. Indiana State Fairgrounds and Indianapolis International Airport are additional concentration points for vehicles moving between established SLF territory and the Indianapolis area.
Identify Tree of Heaven →Local action resources
What To Do in Indianapolis, IN
Report a Sighting
Every sighting in Indianapolis, IN maps the invasion front. Report directly to Indiana State Department 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 Indiana State Guide
County-level data, quarantine zones, treatment guides, and agency resources for the entire state.
See the full Indiana guide →Community intelligence
Live Sighting Map
See where SLF has been spotted near you in Indianapolis, IN. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Indianapolis, IN.
One email per week. Your zip code. Your threat level. Your action plan. Know exactly what to do this week in Indianapolis, IN.