Spotted Lanternfly inBergen County, NJSPOTTED LANTERNFLY GUIDE
Bergen County is the most populous county in New Jersey — confirmed for SLF in 2019, with populations now deeply established across a dense suburban and urban landscape that stretches from the Palisades cliffs above the Hudson River to the Meadowlands sports and entertainment complex. The George Washington Bridge approach on the NJ side is one of the highest-volume vehicle corridors in the United States, making it a critical ongoing SLF reinforcement node as vehicles flow from established New York City and Westchester County infestation zones into New Jersey. NJ Transit's Bergen County Line and Main Line provide daily commuter corridors that have accelerated SLF spread throughout the county's numerous suburban communities. Hackensack — the county seat — sits at the center of a dense urban-suburban mosaic where SLF populations have established across street trees, parks, and river corridors.
Highest activity zones
SLF Hotspots in Bergen County, NJ
George Washington Bridge approach corridors
Active zone
NJ Transit Bergen County Line rail embankments
Active zone
Palisades Interstate Park (Hudson River escarpment)
Active zone
Hackensack River watershed greenway
Active zone
Meadowlands sports complex area
Active zone
Primary SLF food source
Tree of Heaven in Bergen County, NJ
Tree of Heaven is established along Bergen County's I-80 and I-95 road margins, the George Washington Bridge approach corridors, and along the Hackensack River waterway through the county's urban core. Palisades Interstate Park has significant Ailanthus colonization along the Hudson River escarpment, creating a linear SLF habitat corridor above one of the most heavily traveled waterways in the East. NJ Transit Bergen County Line and Main Line rail embankments have dense ToH populations that extend SLF dispersal pathways through the length of the county. The Meadowlands area disturbed margins and the Hackensack River watershed greenway are priority monitoring zones as SLF continues to consolidate its populations across New Jersey's most populous county.
Identify Tree of Heaven →Local action resources
What To Do in Bergen County, NJ
Report a Sighting
Every sighting in Bergen 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 Bergen County, NJ. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Bergen County, NJ.
One email per week. Your zip code. Your threat level. Your action plan. Know exactly what to do this week in Bergen County, NJ.