Spotted Lanternfly inNassau County, NYSPOTTED LANTERNFLY GUIDE

Nassau County is the densely suburban Long Island county immediately east of New York City — confirmed for SLF at moderate density in 2022. With nearly 1.4 million residents across a compact geographic footprint, Nassau is one of the most densely populated counties in the United States, creating both intensive monitoring challenges and high public visibility for SLF activity. The LIRR Hempstead, Oyster Bay, and Babylon branches carry commuter traffic daily between Nassau and the established SLF zones of Queens and Brooklyn, making rail corridors the primary spread vector for ongoing SLF population reinforcement. Eisenhower Park — the largest Nassau County park — is under active SLF monitoring. Hofstra University campus and Jones Beach State Park are additional significant monitoring sites.