News on the Spotted Lanternfly (SLF) in Southeastern Pennsylvania

Posted: November 17, 2015

As the result of efforts by the Pennsylvania Department of Agriculture’s spotted lanternfly survey crews, cooperators (other agencies, Penn State Extension, and other organizations), and the general public, Sven Spichiger, Entomology Program Manager, Pennsylvania Department of Agriculture (PDA) recently reported two new Pennsylvania counties and several new township detection records for the spotted lanternfly (SLF), Lycorma delicatula.
An adult spotted lanternfly, Lycorma delicatula. Image by Greg Hoover

An adult spotted lanternfly, Lycorma delicatula. Image by Greg Hoover

New additions to the spotted lanternfly quarantine in Pennsylvania are indicated below.

Berks County

  • Boyertown (New)
  • Colebrookdale
  • District
  • Earl
  • Hereford
  • Longswamp
  • Oley
  • Pike
  • Rockland and Washington townships
  • The boroughs of Bally, Bechtelsville, and Topton

Montgomery County

  • Douglass Township (New)
  • Upper Hanover Township
  • The boroughs of East Greenville, Pennsburg and Red Hill

Bucks County (New)

  • Milford Township
  • Trumbauersville Borough

Chester County (New)

South Coventry Township

Details of new SLF detections in Pennsylvania

There were two positive locations identified in Boyertown Borough in Berks County. There are three positive locations in Douglass Township in Montgomery County. Milford Township in Bucks County had an infested site turned in by a PDA plant inspector that was confirmed, and Trumbauersville Borough is within Milford Township.

South Coventry Township in Chester County had a single specimen submitted by a private citizen that could not be linked to population. The PDA spotted lanternfly survey crews focused surveillance in the immediate vicinity of the detection and were able locate an infested stand near the initial reported location. South Coventry Township is the only spotted lanternfly quarantined location that is not contiguous with the rest of the Spotted Lanternfly Quarantine.

During this time of the growing season people more readily observe SLF adults on tree of heaven. As a result, there's a high probability of additional new SLF detections may occur before a hard frost kills the adults.

According to Sven Spichiger, during the coming weeks the PDA spotted lanternfly crews will continue to focus survey efforts in the areas around the Route 100 corridor between South Coventry Township and the contiguous SLF quarantine. Reports from the public and survey information are valuable and do help to better define the extent of the SLF infestation in Pennsylvania.

Please consult the PDA website for a current map of the Spotted Lanternfly Quarantine Area in southeastern Pennsylvania.