Spotted Lanternfly inSusquehanna County, PASPOTTED LANTERNFLY GUIDE
Susquehanna County, a rural northeastern Pennsylvania county along the Route 6 corridor, confirmed its first spotted lanternfly populations in 2023. The county's agricultural landscape — including dairy farms, orchards, and woodlots — faces increasing pressure as SLF populations expand along the Susquehanna River valley and Route 6 travel corridor. Borough centers like Montrose and Susquehanna Depot are key early-detection monitoring points as the infestation continues to establish.
Pennsylvania is under a statewide spotted lanternfly quarantine. Moving plants, outdoor items, or vehicles out of quarantined counties requires inspection.
Highest activity zones
SLF Hotspots in Susquehanna County, PA
Montrose Borough
Active zone
Hallstead
Active zone
Great Bend
Active zone
New Milford
Active zone
Susquehanna Depot
Active zone
Primary SLF food source
Tree of Heaven in Susquehanna County, PA
Tree of Heaven is well established along Route 6, the Susquehanna River bottomlands, and disturbed areas throughout the county. Ailanthus stands near Susquehanna Depot and Great Bend provide critical SLF habitat along the river corridor, while roadside colonization along Routes 11 and 171 creates additional spread pathways into this rural landscape.
Identify Tree of Heaven →Local action resources
What To Do in Susquehanna County, PA
Report a Sighting
Every sighting in Susquehanna 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 Susquehanna County, PA. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Susquehanna County, PA.
One email per week. Your zip code. Your threat level. Your action plan. Know exactly what to do this week in Susquehanna County, PA.