Spotted Lanternfly inRamsey County, MNSPOTTED LANTERNFLY GUIDE
Ramsey County, seat of St. Paul and the state capital, sits at the confluence of the Mississippi and Minnesota Rivers — a geography that makes it one of Minnesota's highest-risk counties for spotted lanternfly introduction. River barge traffic, interstate highway corridors, and rail yards in St. Paul all represent potential SLF entry vectors as the pest continues its westward march from established populations in the Great Lakes states. The Minnesota Dept of Agriculture has designated Ramsey County a watch zone for 2025. Dense urban neighborhoods like Frogtown and the East Side, along with suburban communities in Maplewood and Roseville, are focal areas for public outreach and early detection surveying.
Highest activity zones
SLF Hotspots in Ramsey County, MN
Downtown St. Paul
Active zone
Frogtown
Active zone
East Side
Active zone
Maplewood
Active zone
Roseville
Active zone
Primary SLF food source
Tree of Heaven in Ramsey County, MN
Tree of Heaven is present in Ramsey County along the Mississippi River bluffs, rail corridors through St. Paul's industrial district, and scattered urban disturbed lots. While populations are sparse compared to eastern infested states, ToH stands in Frogtown and along the railroad right-of-ways near the St. Paul rail yards are considered priority monitoring sites by MDA as they represent the habitat most likely to support SLF establishment.
Identify Tree of Heaven →Local action resources
What To Do in Ramsey County, MN
Report a Sighting
Every sighting in Ramsey County, MN maps the invasion front. Report directly to Minnesota Dept of Agriculture (MDA).
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 MN State Guide
County-level data, quarantine zones, treatment guides, and agency resources for the entire state.
See the full MN guide →Community intelligence
Live Sighting Map
See where SLF has been spotted near you in Ramsey County, MN. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Ramsey County, MN.
One email per week. Your zip code. Your threat level. Your action plan. Know exactly what to do this week in Ramsey County, MN.