Spotted Lanternfly inMarion County, INSPOTTED LANTERNFLY GUIDE
Marion County — home to Indianapolis and the state's largest metro population — confirmed spotted lanternfly in 2023 as the infestation advanced westward along the I-70 and I-65 freight corridors from Ohio. The county's extensive rail network and busy interstate interchanges create prime egg-mass transport vectors, while urban neighborhoods like Irvington and Broad Ripple provide abundant Tree of Heaven habitat. Early detection and public reporting are essential as ISDA works to contain spread across the Indianapolis metro.
Highest activity zones
SLF Hotspots in Marion County, IN
Downtown Indianapolis
Active zone
Broad Ripple
Active zone
Irvington
Active zone
Warren Township
Active zone
Decatur Township
Active zone
Primary SLF food source
Tree of Heaven in Marion County, IN
Tree of Heaven is well established along Marion County's railroad rights-of-way, river margins of the White River and Fall Creek, and urban vacant lots throughout Indianapolis. The I-65/I-70 interchange corridor and CSX rail lines running through downtown are priority monitoring zones where SLF egg masses on vehicles and freight equipment pose the greatest spread risk.
Identify Tree of Heaven →Local action resources
What To Do in Marion County, IN
Report a Sighting
Every sighting in Marion County, IN maps the invasion front. Report directly to Indiana State Dept of Agriculture (ISDA).
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 IN State Guide
County-level data, quarantine zones, treatment guides, and agency resources for the entire state.
See the full IN guide →Community intelligence
Live Sighting Map
See where SLF has been spotted near you in Marion County, IN. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Marion County, IN.
One email per week. Your zip code. Your threat level. Your action plan. Know exactly what to do this week in Marion County, IN.