Spotted Lanternfly inDelaware County, OHSPOTTED LANTERNFLY GUIDE
Delaware County forms the fast-growing northern suburbs of Columbus, confirmed with spotted lanternfly in 2022 as SLF populations established in Franklin County to the south and spread northward along Ohio's I-71 corridor. The county has experienced explosive residential and commercial growth over the past decade, with communities like Powell, Lewis Center, and Dublin border areas generating heavy commuter traffic from Columbus that provides daily introduction opportunities for SLF arriving from infested zones in eastern Ohio and Pennsylvania. Delaware City and Sunbury retain a more rural and agricultural character that makes early detection especially challenging across a large landscape, while Lewis Center and the Dublin border communities are dense suburban areas with significant landscaping and nursery trade. SLF spread from the established Franklin County infestation via the Olentangy River and Scioto River corridors is the primary spread pathway of concern.
Highest activity zones
SLF Hotspots in Delaware County, OH
Delaware City
Active zone
Powell
Active zone
Dublin border
Active zone
Lewis Center
Active zone
Sunbury
Active zone
Primary SLF food source
Tree of Heaven in Delaware County, OH
The Olentangy River corridor through Delaware City and Lewis Center has Tree of Heaven establishment in riparian floodplain margins connecting Columbus infestations northward into Delaware County. I-71 corridor through the county carries Ailanthus at highway medians and interchange areas extending the SLF dispersal spine from the Columbus metro toward the Ohio Turnpike corridor to the north. Rail corridors through Sunbury and Delaware City carry Ailanthus at track margins providing additional SLF dispersal pathways through the county's agricultural interior.
Identify Tree of Heaven βLocal action resources
What To Do in Delaware County, OH
Report a Sighting
Every sighting in Delaware County, OH maps the invasion front. Report directly to Ohio Dept of Agriculture.
Report Now βSquish on Sight
See a spotted lanternfly? Kill it immediately β it is legal and encouraged in all states. Learn the best kill methods.
Full Fight Guide βMap 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 βStatewide resources
Full OH State Guide
County-level data, quarantine zones, treatment guides, and agency resources for the entire state.
See the full OH guide βCommunity intelligence
Live Sighting Map
See where SLF has been spotted near you in Delaware County, OH. Add your own sighting to help map the front.
Open the Map βFree weekly fight briefing
Fight SLF in Delaware County, OH.
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