Spotted Lanternfly inHampshire County, MASPOTTED LANTERNFLY GUIDE
Hampshire County — with Northampton as county seat — confirmed SLF in 2023, bringing the invasion to one of New England's most distinctive college communities. The 5-College Area (Smith College, Mount Holyoke College, Hampshire College, Amherst College, and UMass Amherst) represents a unique concentration of academic research capacity for SLF monitoring and response. The Pioneer Valley wine country — including Westfield River wines and Chamard Vineyards — faces SLF agricultural pressure on emerging New England viticulture. The Connecticut River corridor through Northampton and the Swift River watershed provide natural spread pathways. Mount Holyoke Range State Park is a priority monitoring zone as SLF potentially establishes in upland habitat across this ecologically rich county.
Highest activity zones
SLF Hotspots in Hampshire County, MA
Northampton waterfront (Connecticut River)
Active zone
Mount Holyoke Range State Park
Active zone
UMass Amherst campus
Active zone
Mill River corridor
Active zone
Hampshire/Amherst town center areas
Active zone
Primary SLF food source
Tree of Heaven in Hampshire County, MA
Tree of Heaven is established along the Connecticut River corridor through Northampton and road margins throughout Hampshire County, providing primary SLF dispersal pathways through the Pioneer Valley. UMass Amherst campus edges and the Mill River corridor have Ailanthus populations that extend SLF habitat through the county's most densely populated academic zone. Mount Holyoke Range State Park access roads and the Hampshire/Amherst town center margins are priority monitoring zones as SLF populations continue to advance through this college-community landscape. The 5-College Area's extensive tree canopy and connected campus greenways create both monitoring challenges and unique research opportunities for documenting SLF establishment.
Identify Tree of Heaven →Local action resources
What To Do in Hampshire County, MA
Report a Sighting
Every sighting in Hampshire County, MA maps the invasion front. Report directly to MA DPH / 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 Hampshire County, MA. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Hampshire County, MA.
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