Spotted Lanternfly inHunterdon County, NJSPOTTED LANTERNFLY GUIDE
Hunterdon County is New Jersey's rural wine country — one of the state's most agricultural counties, with a Delaware River border directly across from Bucks County, PA. Confirmed in 2019, the county's farms, vineyards, and orchards face serious ongoing SLF pressure as populations established from neighboring Pennsylvania counties. Flemington — the county seat — sits at the center of a rich agricultural landscape that includes significant hop and grape production. The Delaware and Raritan Canal State Park runs through the county, providing a linear ToH corridor that has accelerated SLF spread from the river toward the interior. Round Valley and Spruce Run reservoirs are significant monitoring zones.
Highest activity zones
SLF Hotspots in Hunterdon County, NJ
Delaware River corridor (heavy TOH)
Active zone
Spruce Run Reservoir
Active zone
D&R Canal trail
Active zone
Flemington area farms
Active zone
Round Valley Recreation Area
Active zone
Primary SLF food source
Tree of Heaven in Hunterdon County, NJ
Tree of Heaven is dense along the Delaware River corridor throughout Hunterdon County, particularly in the river valley between Milford and Frenchtown where Ailanthus colonizes steep slopes and riparian margins. The D&R Canal State Park towpath has significant ToH coverage that extends SLF habitat from the Delaware River inland toward the central county agricultural zone. Flemington area farm field margins and Spruce Run Reservoir road margins are additional priority monitoring zones for this predominantly agricultural county.
Identify Tree of Heaven →Local action resources
What To Do in Hunterdon County, NJ
Report a Sighting
Every sighting in Hunterdon County, NJ maps the invasion front. Report directly to NJ 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 NJ State Guide
County-level data, quarantine zones, treatment guides, and agency resources for the entire state.
See the full NJ guide →Community intelligence
Live Sighting Map
See where SLF has been spotted near you in Hunterdon County, NJ. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Hunterdon County, NJ.
One email per week. Your zip code. Your threat level. Your action plan. Know exactly what to do this week in Hunterdon County, NJ.