Spotted Lanternfly inTolland County, CTSPOTTED LANTERNFLY GUIDE
Tolland County — northeastern Connecticut's most rural county — confirmed SLF in 2024 as populations advanced inland from the established Hartford and Fairfield County populations along the I-84 corridor. The I-84 freight and commuter artery bisects the county, providing a high-volume vector for passive SLF spread from western Connecticut. UConn's main campus in Mansfield is a significant concentration point: large institutional grounds, extensive arboricultural plantings, and high student vehicle traffic all elevate SLF risk and provide a research platform for regional monitoring. Vernon's Rockville district and Ellington's agricultural lands face growing SLF pressure, while Coventry's lakeside recreation areas and Tolland's residential corridors are active watch zones as the invasion continues north and east through Connecticut.
Highest activity zones
SLF Hotspots in Tolland County, CT
Tolland town center
Active zone
Vernon (Rockville district)
Active zone
Ellington agricultural lands
Active zone
Coventry lakeside corridors
Active zone
Mansfield (UConn main campus)
Active zone
Primary SLF food source
Tree of Heaven in Tolland County, CT
I-84 medians and roadside margins are the primary Tree of Heaven dispersal corridor through Tolland County, connecting established western CT populations to interior New England along the primary freight artery. Railroad rights-of-way through Vernon and the Willimantic freight corridor have Ailanthus populations that extend SLF habitat into the rural northeastern CT interior. UConn Storrs campus edges, Coventry lakeside access roads, and Ellington's farm perimeter margins are priority monitoring zones as SLF establishes across this critical northeastern Connecticut landscape.
Identify Tree of Heaven →Local action resources
What To Do in Tolland County, CT
Report a Sighting
Every sighting in Tolland County, CT maps the invasion front. Report directly to Connecticut Agricultural Experiment Station (CAES).
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 CT State Guide
County-level data, quarantine zones, treatment guides, and agency resources for the entire state.
See the full CT guide →Community intelligence
Live Sighting Map
See where SLF has been spotted near you in Tolland County, CT. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Tolland County, CT.
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