Spotted Lanternfly inClarke County, VASPOTTED LANTERNFLY GUIDE
Clarke County is the least-populated county in Northern Virginia — with just 14,000 residents and Berryville as its county seat — but its position in the Shenandoah River Valley between Winchester and the Blue Ridge makes it a critical SLF monitoring zone. Confirmed in 2023, populations are in the early establishment phase in this predominantly rural and agricultural county. Clarke County is significant apple orchard country, with substantial fruit-growing operations that face SLF vulnerability as the infestation frontier advances. The US-17 corridor connects Clarke County to the established Warren County populations to the south and the Frederick County zone to the north, providing a direct SLF spread pathway through this quiet valley county.
Highest activity zones
SLF Hotspots in Clarke County, VA
Berryville downtown area (county seat)
Active zone
US-17 corridor (primary spread vector)
Active zone
Shenandoah River valley bottomlands
Active zone
Apple orchard district (significant fruit growing area)
Active zone
Winchester / Frederick County border zone
Active zone
Primary SLF food source
Tree of Heaven in Clarke County, VA
Tree of Heaven is present along US-17 corridor margins and Shenandoah River bottomland edges in Clarke County, providing SLF dispersal pathways connecting the established Warren County and Frederick County populations through the Shenandoah Valley. Berryville's rural road margins and the apple orchard district hedgerows have Ailanthus colonization adjacent to fruit-growing operations — a direct threat to Clarke County's most economically significant agricultural sector. Early detection and reporting is especially critical in this sparsely populated county where SLF can establish across large agricultural areas before being noticed.
Identify Tree of Heaven →Local action resources
What To Do in Clarke County, VA
Report a Sighting
Every sighting in Clarke County, VA maps the invasion front. Report directly to Virginia Department of Agriculture and Consumer Services.
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 Virginia State Guide
County-level data, quarantine zones, treatment guides, and agency resources for the entire state.
See the full Virginia guide →Community intelligence
Live Sighting Map
See where SLF has been spotted near you in Clarke County, VA. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Clarke County, VA.
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