Spotted Lanternfly inSalem County, NJSPOTTED LANTERNFLY GUIDE
Salem County is the most rural county in New Jersey — confirmed for SLF in 2021, with a Delaware River border directly across from Delaware. Historic Salem City, one of the oldest Quaker settlements in the United States, sits at the county's agricultural heart. Salem County is New Jersey's leading producer of asparagus and sweet corn, and its agricultural landscape faces ongoing SLF pressure as populations advance from neighboring Gloucester and Cumberland counties. The Salem Nuclear Power Plant — a major county employer with large, fenced grounds — presents a unique monitoring challenge: Tree of Heaven can establish and spread unchecked on restricted-access property, creating an SLF reservoir that is difficult to manage. The Delaware Bay oyster industry adds additional ecological and economic sensitivity to this rural county.
Highest activity zones
SLF Hotspots in Salem County, NJ
Supawna Meadows National Wildlife Refuge
Active zone
Fort Mott State Park
Active zone
Salem River watershed
Active zone
Delaware River waterfront at Salem City
Active zone
Route 49 agricultural corridor
Active zone
Primary SLF food source
Tree of Heaven in Salem County, NJ
Tree of Heaven is present along Salem County's Delaware River waterfront margins, Route 49 agricultural road edges, and disturbed sites throughout this predominantly rural county. The Salem Nuclear Power Plant's fenced property is a priority concern — Ailanthus can colonize restricted-access grounds without regular intervention, creating an SLF reservoir adjacent to the surrounding agricultural landscape. Supawna Meadows National Wildlife Refuge edges and the Salem River watershed margins have additional ToH populations that extend SLF habitat into the county's most ecologically sensitive areas.
Identify Tree of Heaven →Local action resources
What To Do in Salem County, NJ
Report a Sighting
Every sighting in Salem 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 Salem County, NJ. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Salem County, NJ.
One email per week. Your zip code. Your threat level. Your action plan. Know exactly what to do this week in Salem County, NJ.