Spotted Lanternfly inNashua, NHSPOTTED LANTERNFLY GUIDE
Nashua, New Hampshire — the state's largest city with a population of about 91,000 — entered spotted lanternfly watch status in 2025 as SLF was confirmed in neighboring Massachusetts communities just across the border. Positioned directly on the MA–NH line with heavy daily commuter traffic on Route 3 and I-93, Nashua is considered New Hampshire's highest-risk city for early SLF introduction from the south. Residents, commuters, and businesses should check vehicles regularly, learn identification, and report any suspected sightings to the NH Department of Agriculture without delay.
Where it's showing up
Key Neighborhoods
Highest activity zones
SLF Hotspots
Downtown Nashua
Active zone
South Nashua
Active zone
Harbor
Active zone
Millyard
Active zone
Hudson border
Active zone
Primary SLF food source
Tree of Heaven in Nashua, NH
Nashua River banks and the former textile mill brownfields of the Millyard district — classic Tree of Heaven pioneer habitat — run through the urban core and would serve as primary SLF host sites if the pest crosses the state line. The I-93 and F.E. Everett Turnpike corridors are the highest-traffic introduction pathways connecting Nashua directly to confirmed SLF populations in Lowell and Lawrence, Massachusetts.
Identify Tree of Heaven →Local action resources
What To Do in Nashua, NH
Report a Sighting
Every sighting in Nashua, NH maps the invasion front. Report directly to NH Dept of Agriculture.
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 NH State Guide
County-level data, quarantine zones, treatment guides, and agency resources for the entire state.
See the full NH guide →Community intelligence
Live Sighting Map
See where SLF has been spotted near you in Nashua, NH. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Nashua, NH.
One email per week. Your zip code. Your threat level. Your action plan. Know exactly what to do this week in Nashua, NH.