Spotted Lanternfly inLawrence County, PASPOTTED LANTERNFLY GUIDE
Lawrence County in the northwestern Pittsburgh suburbs was confirmed with spotted lanternfly in 2022, as SLF populations radiated outward from the heavily infested Allegheny County Pittsburgh metro along the I-376 and PA-60 corridors. New Castle, the county seat, is a former steel and manufacturing city whose extensive brownfield industrial lands and Shenango River valley infrastructure provide ideal SLF habitat. Ellwood City and the Beaver River communities sit in a landscape laced with rail lines, river corridors, and legacy industrial sites — the same combination that has historically accelerated SLF spread across Pennsylvania's industrial heartland. Lawrence County serves as a critical bridgehead county for SLF moving from the Pittsburgh region toward Ohio and the broader Great Lakes watershed.
Pennsylvania is under a statewide spotted lanternfly quarantine. Moving plants, outdoor items, or vehicles out of quarantined areas requires inspection.
Highest activity zones
SLF Hotspots in Lawrence County, PA
New Castle
Active zone
Ellwood City
Active zone
Neshannock
Active zone
Shenango Township
Active zone
Pulaski
Active zone
Primary SLF food source
Tree of Heaven in Lawrence County, PA
The Shenango River Valley through New Castle and Shenango Township has heavy Tree of Heaven in brownfield and industrial margin habitats that support large SLF populations. I-376 and PA-60 corridor medians carry Ailanthus northwest from the Pittsburgh metro into Lawrence County. Norfolk Southern rail through western PA runs through Lawrence County with Ailanthus at track margins providing SLF dispersal pathways linking the Pittsburgh industrial belt to the Ohio border.
Identify Tree of Heaven →Local action resources
What To Do in Lawrence County, PA
Report a Sighting
Every sighting in Lawrence County, PA maps the invasion front. Report directly to PA 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 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 Lawrence County, PA. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Lawrence County, PA.
One email per week. Your zip code. Your threat level. Your action plan. Know exactly what to do this week in Lawrence County, PA.