Spotted Lanternfly inMiddletown, NYSPOTTED LANTERNFLY GUIDE
Orange County confirmed SLF in 2021, and Middletown — the county's largest urban center — is positioned at a critical crossroads in the Mid-Hudson Valley SLF expansion front. The I-84 corridor through Middletown is a major transport artery connecting Pennsylvania's established SLF zone to the Hudson Valley and southern New England, making it a primary egg mass dispersal route. Stewart International Airport's proximity adds cargo and passenger traffic as additional introduction vectors. The Wallkill River corridor provides natural Tree of Heaven habitat running through the county. As SLF continues its northward and westward push through the Mid-Hudson Valley, Middletown serves as a key monitoring hub for Orange County's agricultural and suburban landscape.
Where it's showing up
Key Neighborhoods
Highest activity zones
SLF Hotspots
I-84 interchange area (major freight vector)
Active zone
Stewart International Airport perimeter
Active zone
Wallkill River corridor (TOH along banks)
Active zone
Downtown Middletown commercial area
Active zone
Orange County rail corridor
Active zone
Primary SLF food source
Tree of Heaven in Middletown, NY
The I-84 corridor through Middletown has highway margin Tree of Heaven providing continuous stepping-stone habitat for SLF moving between Pennsylvania and the Hudson Valley — one of the most consequential spread pathways in the region. The Wallkill River corridor has established TOH populations along its banks running through Orange County, connecting Middletown's urban SLF populations to the broader agricultural landscape. Stewart International Airport perimeter vegetation is a priority monitoring zone given the potential for cargo-based SLF introduction. Orange County's transition from suburban to agricultural land creates a complex monitoring landscape as the Mid-Hudson Valley expansion front advances.
Identify Tree of Heaven →Local action resources
What To Do in Middletown, NY
Report a Sighting
Every sighting in Middletown, NY maps the invasion front. Report directly to NY 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 Middletown, NY. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Middletown, NY.
One email per week. Your zip code. Your threat level. Your action plan. Know exactly what to do this week in Middletown, NY.