Spotted Lanternfly inBaltimore, MDSPOTTED LANTERNFLY GUIDE
Baltimore confirmed SLF in 2020. Now under MD statewide quarantine (March 2026), the city is heavily infested. Inner Harbor and waterfront Tree of Heaven corridors are major spread vectors, and rail yards connect populations to DC and Philadelphia.
Where it's showing up
Key Neighborhoods
Highest activity zones
SLF Hotspots
Druid Hill Park
Active zone
Patapsco Valley State Park
Active zone
Port Covington waterfront
Active zone
CSX rail yards
Active zone
Gwynns Falls Trail
Active zone
Primary SLF food source
Tree of Heaven in Baltimore, MD
Baltimore's Inner Harbor waterfront, CSX rail yards, and Patapsco Valley corridor are heavily colonized by Tree of Heaven, creating prime SLF habitat and spread pathways connecting Baltimore to DC and Philadelphia. MD statewide quarantine is in effect as of March 2026.
Identify Tree of Heaven →Local action resources
What To Do in Baltimore, MD
Report a Sighting
Every sighting in Baltimore, MD maps the invasion front. Report directly to Maryland 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 MD State Guide
County-level data, quarantine zones, treatment guides, and agency resources for the entire state.
See the full MD guide →Community intelligence
Live Sighting Map
See where SLF has been spotted near you in Baltimore, MD. Add your own sighting to help map the front.
Open the Map →Free weekly fight briefing
Fight SLF in Baltimore, MD.
One email per week. Your zip code. Your threat level. Your action plan. Know exactly what to do this week in Baltimore, MD.