Spotted Lanternfly inWest Chester, PASPOTTED LANTERNFLY GUIDE
West Chester — Chester County seat — confirmed SLF in 2018 and is now heavily infested. The borough's extensive historic downtown street tree canopy, West Chester University's large campus, and the Lincoln Highway corridor create overlapping SLF hotspots through this Brandywine Valley hub. Surrounding countryside wineries and farms face significant agricultural risk as SLF populations build through the county's landscape. The Brandywine Valley tourism economy — drawing visitors to Longwood Gardens, Brandywine Battlefield, and area wineries — concentrates vehicle traffic from across the region.
Where it's showing up
Key Neighborhoods
Highest activity zones
SLF Hotspots
West Chester University campus green spaces
Active zone
Downtown historic district street tree canopy
Active zone
Lincoln Highway (US-30) corridor margins (heavy TOH)
Active zone
Brandywine Creek tributary corridors
Active zone
Chester County Courthouse grounds
Active zone
Primary SLF food source
Tree of Heaven in West Chester, PA
West Chester's historic downtown features an extensive street tree canopy with Tree of Heaven established in disturbed lots and alley margins throughout the borough. The Lincoln Highway (US-30) corridor has heavy TOH colonization along highway margins — a primary SLF spread vector running east-west through Chester County. West Chester University's campus green spaces and Brandywine Creek tributary corridors provide additional prime habitat. Surrounding Brandywine Valley wineries and farms are on high alert as SLF populations expand through one of Pennsylvania's most productive agricultural landscapes.
Identify Tree of Heaven →Local action resources
What To Do in West Chester, PA
Report a Sighting
Every sighting in West Chester, PA maps the invasion front. Report directly to Pennsylvania 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 Pennsylvania State Guide
County-level data, quarantine zones, treatment guides, and agency resources for the entire state.
See the full Pennsylvania guide →Community intelligence
Live Sighting Map
See where SLF has been spotted near you in West Chester, PA. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in West Chester, PA.
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