Spotted Lanternfly inWorcester, MASPOTTED LANTERNFLY GUIDE
Worcester County entered an active SLF watch zone in 2024 as Massachusetts's second-largest city and the central Massachusetts gateway. Worcester sits at the I-90/I-290 interchange — one of the busiest freight junctions in New England — making it a high-priority early detection site as SLF moves east from confirmed western MA populations. The Blackstone River Valley corridor provides natural Tree of Heaven habitat running through the urban core and connecting to Rhode Island SLF populations to the south. Clark University and College of the Holy Cross campuses add significant monitored green space in the urban landscape.
Where it's showing up
Key Neighborhoods
Highest activity zones
SLF Hotspots
Blackstone River Valley corridor
Active zone
I-90 / I-290 interchange area
Active zone
Green Hill Park
Active zone
Clark University campus
Active zone
College of the Holy Cross campus
Active zone
Primary SLF food source
Tree of Heaven in Worcester, MA
The I-90/I-290 interchange is Worcester's highest SLF introduction risk point — the intersection of the Massachusetts Turnpike and the main central MA east-west freight corridor brings continuous vehicle traffic from confirmed western MA populations. The Blackstone River Valley corridor has established Tree of Heaven populations running south toward Providence, RI. Green Hill Park and the Clark and Holy Cross university campuses are priority early-detection monitoring sites as MDAR expands SLF surveillance into central Massachusetts.
Identify Tree of Heaven →Local action resources
What To Do in Worcester, MA
Report a Sighting
Every sighting in Worcester, MA maps the invasion front. Report directly to MassWildlife / MDAR.
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 MA State Guide
County-level data, quarantine zones, treatment guides, and agency resources for the entire state.
See the full MA guide →Community intelligence
Live Sighting Map
See where SLF has been spotted near you in Worcester, MA. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Worcester, MA.
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