Spotted Lanternfly inHartford County, CTSPOTTED LANTERNFLY GUIDE
Hartford County — home to Hartford, the Connecticut state capital — confirmed SLF in 2023 as populations advanced north from the New York metro area along the I-91 corridor from Springfield, MA and south from the Connecticut River Valley. The county seat sits at the heart of the Connecticut River Valley, a natural SLF spread highway running from Long Island Sound northward. The Farmington Valley agricultural region faces mounting SLF pressure on orchards and nursery crops. Trinity College and UConn Extension programs are active in monitoring and public education as SLF becomes established across this historically significant county.
Highest activity zones
SLF Hotspots in Hartford County, CT
Connecticut River waterfront
Active zone
Bushnell Park (downtown Hartford)
Active zone
Elizabeth Park
Active zone
Farmington River greenway
Active zone
I-91/I-84 interchange area
Active zone
Primary SLF food source
Tree of Heaven in Hartford County, CT
Tree of Heaven is established along the Connecticut River waterfront and I-91/I-84 road margins throughout Hartford County, providing SLF dispersal pathways through the heart of the Connecticut River Valley. Bushnell Park — Hartford's central urban park — and Elizabeth Park have Ailanthus in urban margins that support SLF populations in the city core. The Farmington River greenway has ToH colonization along riparian edges that extends SLF habitat into the agricultural Farmington Valley. The I-91/I-84 interchange area road margins are a priority monitoring zone for freight-mediated SLF reinforcement.
Identify Tree of Heaven →Local action resources
What To Do in Hartford County, CT
Report a Sighting
Every sighting in Hartford County, CT maps the invasion front. Report directly to CT 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 Hartford County, CT. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Hartford County, CT.
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