Spotted Lanternfly inMonroe County, PASPOTTED LANTERNFLY GUIDE
Monroe County — confirmed for SLF in 2016, among Pennsylvania's earliest confirmed counties — is the heart of the Pocono Mountains resort region, where millions of out-of-state visitors arrive annually from New York, New Jersey, and beyond. The I-80 corridor cuts through the county from east to west, serving as one of the most significant SLF spread vectors in the Northeast as vehicles travel from established infestation zones in the Lehigh Valley and New Jersey toward western Pennsylvania and Ohio. Delaware Water Gap National Recreation Area forms the county's eastern border, where SLF populations cross the Delaware River from New Jersey. Ski resort vehicle traffic at Camelback, Jack Frost, and Big Boulder concentrates vehicles from heavily infested metro areas throughout the winter and spring season.
Highest activity zones
SLF Hotspots in Monroe County, PA
Pocono Mountains resort corridors
Active zone
I-80 freight and tourism corridor
Active zone
Delaware Water Gap NRA
Active zone
Ski resort parking areas (Camelback, Jack Frost)
Active zone
Stroudsburg area commercial strip
Active zone
Primary SLF food source
Tree of Heaven in Monroe County, PA
Tree of Heaven is established along the I-80 corridor and road margins throughout Monroe County, creating SLF dispersal pathways that channel the infestation from the Delaware River corridor westward through the Pocono Plateau. Delaware Water Gap NRA buffer zones and the Brodhead Creek corridor have Ailanthus populations at the suburban-forest interface. Ski resort access roads and Stroudsburg area commercial strip margins are priority monitoring zones where the sheer volume of out-of-state visitor vehicles creates continuous SLF introduction risk throughout Monroe County's tourism economy.
Identify Tree of Heaven →Local action resources
What To Do in Monroe County, PA
Report a Sighting
Every sighting in Monroe County, 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 Monroe County, PA. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Monroe County, PA.
One email per week. Your zip code. Your threat level. Your action plan. Know exactly what to do this week in Monroe County, PA.