Spotted Lanternfly inRacine County, WISPOTTED LANTERNFLY GUIDE
Racine County occupies a critical position in the SLF monitoring landscape: it sits directly on the Wisconsin-Illinois border via its southern neighbor Kenosha County, placing it among the Wisconsin counties most immediately in the path of northward SLF spread from Illinois. Designated as a watch zone in 2025, Racine County is a Lake Michigan shoreline county with significant industrial port activity in the City of Racine and dense suburban development in Mount Pleasant and Sturtevant β communities that sit astride I-94 and receive heavy freight traffic from the Chicago logistics corridor daily. The Root River passes through Racine County from Burlington in the west to Lake Michigan in the east, creating a riparian dispersal corridor that could channel SLF from introduction points along I-94 into natural areas along the lakefront. Burlington, in the county's interior, is a growing community along the Fox River that draws goods and personnel from the broader Chicago-Milwaukee metropolitan zone. Sturtevant hosts a major Amtrak and freight rail interchange β one of the more significant rail nodes in southeastern Wisconsin β making it a particular monitoring priority for SLF introduction via rail freight originating in Illinois. Wisconsin DATCP regards Racine County as among the highest-priority watch zones in the state given its geographic exposure to established SLF populations just across the Kenosha County line.
Highest activity zones
SLF Hotspots in Racine County, WI
Racine
Active zone
Kenosha (county border)
Active zone
Mount Pleasant
Active zone
Burlington
Active zone
Sturtevant
Active zone
Primary SLF food source
Tree of Heaven in Racine County, WI
Lake Michigan shoreline industrial zones in Racine and along the Root River mouth support Tree of Heaven in disturbed port-adjacent habitats and riparian margins β a recognized SLF introduction pathway via lake freight and shoreline corridors. I-43 corridor through Mount Pleasant and Sturtevant carries Ailanthus in highway right-of-way connecting Racine County directly to the Illinois border at Kenosha, where SLF risk is highest. Menomonee River tributaries in adjacent Milwaukee County connect northward while the Root River provides an east-west Ailanthus dispersal axis through Burlington and toward the lakefront. BNSF and Union Pacific rail lines through Sturtevant's rail interchange represent a primary high-risk SLF introduction vector, channeling freight directly from the Chicago rail network β in established SLF territory β into southeastern Wisconsin.
Identify Tree of Heaven βLocal action resources
What To Do in Racine County, WI
Report a Sighting
Every sighting in Racine County, WI maps the invasion front. Report directly to Wisconsin DATCP.
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 WI State Guide
County-level data, quarantine zones, treatment guides, and agency resources for the entire state.
See the full WI guide βCommunity intelligence
Live Sighting Map
See where SLF has been spotted near you in Racine County, WI. Add your own sighting to help map the front.
Open the Map βFree weekly fight briefing
Fight SLF in Racine County, WI.
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