What's New

Updates to this Cornell IPM application.

SLF dataset update: Michigan

Sept. 20, 2026
New Michigan: Berrien and Washtenaw counties added as infested.

SLF dataset update: New York

Sept. 14, 2026
New New York: Cayuga County upgraded from sighting to infested; Saratoga County added as infested.

SLF dataset update: Ohio statewide quarantine complete

Aug. 24, 2026
New Ohio: Clark, Clermont, Delaware, Henry, Hocking, Huron, Lake, Licking, Sandusky, Scioto, Stark, Washington, and Williams counties updated to infested and quarantined, completing statewide quarantine coverage.

SLF dataset update: Kentucky, Tennessee, Virginia, West Virginia, Indiana infestation expansion

July 22, 2026
New Indiana: Jefferson, Ripley, Dearborn, Marion, Tippecanoe, LaPorte, and Lake counties updated to infested.
New West Virginia: Pendleton, Preston, Wetzel, Mercer, and McDowell counties updated to infested.
New Virginia: Tazewell, Grayson, Floyd, Patrick, Franklin, Halifax, Cumberland, Powhatan, Prince George, and Middlesex counties, and the cities of Martinsville, Danville, Suffolk, Chesapeake, and Norfolk, updated to infested; Louisa and Goochland counties upgraded from sighting to infested.
New Tennessee: Jefferson, Knox, Rutherford, and Sumner counties updated to infested; Hamilton County upgraded from sighting to infested.
New Kentucky: Fayette, Woodford, Anderson, Franklin, Scott, Harrison, Robertson, Pendleton, Bracken, Trimble, Boone, and Kenton counties updated to infested.

SLF dataset update: North Carolina, New York, South Carolina, Massachusetts

June 22, 2026
New Massachusetts: Berkshire and Franklin counties updated to infested.
New South Carolina: Oconee and Greenville counties updated to infested.
New New York: Columbia and Schuyler counties updated to infested.
New North Carolina: Cabarrus County confirmed as sighting only (not upgraded); Iredell County added as a sighting.

SLF dataset: initial county status published

Feb. 18, 2026
New Initial county-level spotted lanternfly status published for the contiguous United States, covering sighting, quarantine, and infestation categories.

Spotted lanternfly map launches

Feb. 18, 2026
New Export the map as a PDF for offline reference.
New Municipality-level overlays for more detailed local status.
New State-level quarantine overlay, so you can see at a glance which states have an active quarantine.
New County-level spotted lanternfly status map, showing sighting, quarantine, and infestation status.