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Have YOU Spotted Lanternfly Egg Masses?

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.
  • Initial infestation found in Berks County, Pennsylvania, in 2014. Thought to have arrived on a stone shipment in 2012.
  • 14 counties in South Eastern PA are under NYS quarantine and include Berks, Bucks, Carbon, Chester, Dauphin, 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, Westchester, and Yates Counties, as well as Brooklyn and Manhattan– all thought to be hitchhikers.  No infestations reported at this time.

SLF Known Distribution Map

Known Distribution of Spotted Lanternfly June 11, 2019.
Known Distribution of Spotted Lanternfly September 18, 2019. Click to expand map.

Funding by New York State Department of Agriculture & Markets, and the Northeastern IPM Center.