Spotted Lanternfly inPittsburgh, PASPOTTED LANTERNFLY GUIDE
Western PA saw rapid SLF spread from 2022–2024, with Pittsburgh at the epicenter. The Three Rivers confluence is prime Tree of Heaven habitat, steep hillside neighborhoods carry heavy ToH, and coal country tree stress makes local trees more vulnerable to SLF feeding damage.
Where it's showing up
Key Neighborhoods
Highest activity zones
SLF Hotspots
Schenley Park
Active zone
Frick Park
Active zone
Three Rivers Trail
Active zone
Mount Washington hillside
Active zone
Monongahela River waterfront
Active zone
Primary SLF food source
Tree of Heaven in Pittsburgh, PA
Pittsburgh's steep hillsides and river margins — especially along the Monongahela, Allegheny, and Ohio Rivers — are densely colonized by Tree of Heaven. The Three Rivers Trail and Mount Washington hillside are particularly active SLF zones.
Identify Tree of Heaven →Local action resources
What To Do in Pittsburgh, PA
Report a Sighting
Every sighting in Pittsburgh, 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 Pittsburgh, PA. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Pittsburgh, PA.
One email per week. Your zip code. Your threat level. Your action plan. Know exactly what to do this week in Pittsburgh, PA.