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If you find Spotted Lanternfly in New York:


  • Spotted lanternfly (SLF) is an invasive species native to China, India, and Vietnam.
  • Introduced into South Korea and spread throughout the country (approximately the size of Pennsylvania) in 3 years.
  • Infestation found in Berks County, Pennsylvania, in 2014. Thought to have arrived on a stone shipment in 2012.
  • 13 counties in South Eastern PA are under NYS quarantine and include Berks, Bucks, Carbon, Chester, Delaware, Lancaster, Lebanon, Lehigh, Monroe, Montgomery, Northampton, Philadelphia, and Schuylkill.
  • Population(s) and NYS quarantine also in Delaware (New Castle), New Jersey (Hunterdon, Mercer, Warren Counties) and Virginia (Frederick County).
  • One dead insect found in Delaware County, New York, in 2017.
  • In New York (2018) SLF adults or egg masses were found in Albany, Chemung, Monroe, Suffolk and Yates Counties, as well as Brooklyn and Manhattan– all thought to be hitchhikers.  No infestations reported at this time.
Map of Presence of Spotted Lanternfly
Presence of spotted lanternfly in the NE United States as of December 2018. Click to expand map.