Spotted Lanternfly inNewark, DESPOTTED LANTERNFLY GUIDE
New Castle County confirmed SLF in 2017 — one of the earliest county-level confirmations outside Pennsylvania — making Newark one of the longest-established SLF cities in the US. The University of Delaware launched one of the first university-based SLF research programs in the nation, with close-quarters campus monitoring documenting heavy infestation through the residential and academic tree canopy. The I-95 Delaware-Maryland border crossing concentrates interstate freight traffic that is the primary vehicle-based SLF spread vector through the city. Amtrak Northeast Corridor service and White Clay Creek State Park add rail-based and natural spread pathways.
Where it's showing up
Key Neighborhoods
Highest activity zones
SLF Hotspots
University of Delaware campus (one of the first university-based SLF research programs in the nation)
Active zone
White Clay Creek State Park (natural TOH and riparian SLF habitat)
Active zone
I-95 Delaware-Maryland border crossing (major interstate freight vector)
Active zone
Christiana Mall suburban commercial zone
Active zone
Amtrak Northeast Corridor Newark station area
Active zone
Primary SLF food source
Tree of Heaven in Newark, DE
University of Delaware campus close-quarters tree canopy — with heavy infestation documented by one of the nation's first academic SLF monitoring programs — has established large SLF colonies throughout the academic and residential district. White Clay Creek State Park riparian corridors have Tree of Heaven populations providing natural SLF habitat connecting Newark populations into the broader landscape. The I-95 Delaware-Maryland border crossing is a primary freight vector — heavy truck and commuter traffic crossing from Maryland brings continuous SLF pressure, while northbound vehicles disperse egg masses toward Wilmington and beyond. Amtrak Northeast Corridor Newark station is a documented spread node on the Philadelphia-Wilmington-DC rail corridor.
Identify Tree of Heaven →Local action resources
What To Do in Newark, DE
Report a Sighting
Every sighting in Newark, DE maps the invasion front. Report directly to Delaware 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 Delaware State Guide
County-level data, quarantine zones, treatment guides, and agency resources for the entire state.
See the full Delaware guide →Community intelligence
Live Sighting Map
See where SLF has been spotted near you in Newark, DE. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Newark, DE.
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