Spotted Lanternfly in LIISMA

What to look for…

During our most recent partners meeting, Thom Allgier from the NYS department of Agriculture and Markets gave us an update on spotted lanternfly (Lycorma delicatula) in New York metropolitan area and Long Island:

  • Populations of SLF has been reported in all 5 NYC boroughs, as well as several counties — Orange, Rockland, Ulster, Broome, and Tompkins.
  • At the time of writing, there are no confirmed populations in Nassau and Suffolk Counties. There have been a few reports of individual adults in Islip — particularly in the MacArthur airport area, as well as Long Beach.
  • Most SLF are adults at this point in the season, with almost no nymphs being reported.
  • During this time of the year, we are just starting to see gravid (pregnant) adults and egg masses.

What can I Do?

Monitor them and do not spread them — Be on the lookout for SLF wherever you go.

  • If you are traveling from a location with known populations such as NYC, inspect your vehicle before starting your journey for egg masses, adults, and nymphs.
  • If you are an organization in Nassau or Suffolk county with the capacity to monitor once a week for SLF, please get in contact with us and we can see if your location is ideal for a monitoring trap.

Scrape it — If you see egg masses, you can scrape them off into a bag or container filled with alcohol or hand sanitizer. Egg masses that fall to the ground can still hatch. Note that the majority of egg masses in trees may be in the canopy and difficult to reach.


Report it — ​​Note the location (address, intersecting roads, or GPS coordinates), shipping information, and any other relevant information and report it to NYS dept of Ag & Markets using the link below

If you’ve seen a spotted lanternfly, please report it here.

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