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The spotted lanternfly (SLF), Lycorma delicatula, is a planthopper native to China and Southeastern Asia. Discovered in Pennsylvania in 2014, the spotted lanternfly presents a threat throughout much of the United States. Despite a quarantine and efforts to eradicate this pest, the spotted lanternfly has proved difficult to contain and now includes infestations and sightings in several states.

Spotted Lanternfly Impacts

Spotted lanternfly is a significant economic and lifestyle pest for residents, businesses, tourism, forestry, and agriculture. While its list of hosts is large, the greatest agricultural concern falls on grapes, hops, apples, blueberries, and stone fruits. Its presence has led to crop loss, exporting issues, and increased management costs. Furthermore, abundant excretions of sticky honeydew by swarms feeding on shade trees, and the associated growth of sooty mold, can restrict people’s enjoyment of parks and their own backyards. Read more about spotted lanternfly damage

Stop the Spread of Spotted Lanternfly

Spotted lanternfly eggs are laid on practically any hard surface, including tree trunks, stones, and metal. Because of this, egg masses may be transported unknowingly. If you’ve spent any time in an area infested with spotted lanternfly it is important to check for egg masses, adults, and nymphs on your vehicle and, any other items you may be transporting. See our Spotted Lanternfly Spread Prevention Checklist [pdf] for a full list of potential harborages. 

Important: Businesses, truckers, and common carriers moving items from a spotted lanternfly quarantine area must complete a Spotted Lanternfly training and obtain a permit.

    Confirmed Spotted Lanternfly Locations

    A map Spotted Lanternfly Reported Distribution in the United States by county. Identifies areas of infestation, quarantined areas, and individual verified sightings.


    This map is provided so the distribution of the Spotted Lanternfly can be viewed on a regional basis. The county records are based on information supplied to us by individual states’ regulatory agencies.  This map is for informational purposes only. Please contact state officials directly when making policy decisions. This is a county-based map so although the map shows entire counties shaded, the actual infestation may only encompass a small portion of that county.

    Every effort is made to keep this map up-to-date. If you have any questions regarding the map and new populations, please contact Brian Eshenaur at bce1@cornell.edu. For any other questions or concerns regarding the Spotted Lanternfly, you are welcome to write to IPMforSLF@cornell.edu.

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