Spotted Lanternfly inClinton County, NYSPOTTED LANTERNFLY GUIDE
Clinton County represents the northernmost edge of confirmed SLF presence in New York State — the first confirmed sighting in the county was recorded in 2024, marking a significant milestone in the insect's northern range expansion. Plattsburgh is the county seat and home to Plattsburgh Air Force Base, a major installation whose extensive restricted-access grounds create monitoring challenges similar to other military facilities in the infestation zone. The county sits on Lake Champlain's western shore, adjacent to Vermont, and at the Canadian border crossing at Champlain — making cross-border spread awareness especially critical. The I-87 Northway corridor, which has served as the primary spread highway northward from the Hudson Valley, reaches its northernmost confirmed SLF detection zone in Clinton County, underscoring the role of major interstate travel in driving SLF range expansion.
Highest activity zones
SLF Hotspots in Clinton County, NY
Plattsburgh Air Force Base perimeter
Active zone
Lake Champlain western shore
Active zone
Champlain border crossing (US–Canada)
Active zone
I-87 northernmost SLF sighting corridor
Active zone
Cumberland Head ferry terminal
Active zone
Primary SLF food source
Tree of Heaven in Clinton County, NY
Tree of Heaven is present along the I-87 corridor and road margins in southern Clinton County, providing the northernmost SLF dispersal pathway in New York State along the primary travel route from the established Hudson Valley infestation zone. The Plattsburgh Air Force Base fence-line margins and the Lake Champlain western shore access roads are priority monitoring zones as SLF approaches the Canadian border. The Champlain border crossing at Rouses Point and the Cumberland Head ferry terminal approach roads are critical monitoring sites where international vehicle traffic from established SLF zones could facilitate cross-border spread into Quebec.
Identify Tree of Heaven →Local action resources
What To Do in Clinton County, NY
Report a Sighting
Every sighting in Clinton County, NY maps the invasion front. Report directly to New York State DEC.
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 NY State Guide
County-level data, quarantine zones, treatment guides, and agency resources for the entire state.
See the full NY guide →Community intelligence
Live Sighting Map
See where SLF has been spotted near you in Clinton County, NY. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Clinton County, NY.
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