Spotted Lanternfly inHarrisburg, PASPOTTED LANTERNFLY GUIDE
Harrisburg — Pennsylvania's state capital — confirmed SLF in 2018, making it one of the earliest established cities in the state. The Susquehanna River corridor running through the city center is dense with Tree of Heaven, and the Capitol Complex grounds themselves have documented SLF populations. As a major I-81 freight hub connecting the mid-Atlantic to the northeast, Harrisburg is a critical node in SLF's regional spread. State Farm Show Complex events concentrate vehicle traffic from across the state, representing an ongoing spread vector.
Where it's showing up
Key Neighborhoods
Highest activity zones
SLF Hotspots
Riverfront Park (Susquehanna River, heavy TOH)
Active zone
Wildwood Park
Active zone
City Island
Active zone
I-81/I-83 interchange corridor
Active zone
Capitol Complex grounds
Active zone
Primary SLF food source
Tree of Heaven in Harrisburg, PA
The Susquehanna River corridor through Harrisburg has dense Tree of Heaven populations along both banks — Riverfront Park, City Island, and the river margins are prime SLF habitat running directly through the state capital. I-81 and I-83 interchange corridors have heavy TOH colonization along highway margins. The State Farm Show Complex and Capitol Complex grounds are among the most publicly prominent SLF hotspots in Pennsylvania.
Identify Tree of Heaven →Local action resources
What To Do in Harrisburg, PA
Report a Sighting
Every sighting in Harrisburg, PA maps the invasion front. Report directly to PA 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 PA State Guide
County-level data, quarantine zones, treatment guides, and agency resources for the entire state.
See the full PA guide →Community intelligence
Live Sighting Map
See where SLF has been spotted near you in Harrisburg, PA. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Harrisburg, PA.
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