Spotted Lanternfly inWindsor County, VTSPOTTED LANTERNFLY GUIDE

Windsor County occupies Vermont's Connecticut River border with New Hampshire — and that border is also the front line of SLF's northward advance through the Connecticut River valley. Designated a watch zone in 2025, Windsor County is directly exposed to the primary northward SLF threat corridor: the Connecticut River banks and the I-91 corridor, which traces the river through Massachusetts (where SLF is confirmed) into Vermont. White River Junction, at the confluence of the White and Connecticut Rivers, is a major transportation hub where I-91 and I-89 intersect, and it represents the highest-priority monitoring point in the county. The Amtrak Vermonter corridor, which runs through Windsor and Springfield, is another documented SLF dispersal pathway. Windsor and Springfield are river towns with industrial heritage and disturbed riparian margins well-suited to Tree of Heaven establishment. Woodstock and Ludlow serve as higher-elevation interior watch zones where tourism traffic from infested states introduces vectors year-round.