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Lanternflies in Pennsylvania

It’s all hands on deck to eradicate Lanternflies in Pennsylvania. While we are always available to help you with your pest needs, this may be a job for everyone as these invasive pests are now present in 51 of the 67 Pennsylvania counties. The Pennsylvania Department of Agriculture includes the following Pennsylvania counties in its 2023 quarantine list:

  1. Adams County
  2. Alleghany County
  3. Armstrong County
  4. Beaver County
  5. Bedford County
  6. Berks County
  7. Blair County
  8. Bucks County
  9. Butler County
  10. Cambria County
  11. Cameron County
  12. Carbon County
  13. Centre County
  14. Chester County
  15. Clearfield County
  16. Clinton County
  17. Columbia County
  18. Cumberland County
  19. Dauphin County
  20. Delaware County
  21. Fayette County
  22. Frankling County
  23. Fulton County
  24. Huntingdon County
  25. Indiana County
  26. Juniata County
  27. Lackawanna County
  28. Lancaster County
  29. Lawrence County
  30. Lebanon County
  31. Lehigh County
  32. Luzerne County
  33. Lycoming County
  34. Mifflin County
  35. Mercer County
  36. Montgomery
  37. Monroe County
  38. Montour County
  39. Northampton County
  40. Northumberland County
  41. Perry County
  42. Philadelphia County
  43. Pike County
  44. Schuylkill County
  45. Snyder County
  46. Somerset County
  47. Union County
  48. Washington County
  49. Wayne County
  50. Westmoreland County
  51. York County

The Pennsylvania Department of Agriculture’s 2019 impact study suggests that the Spotted Lanternfly could cost $324 million annually and more than 2,800 jobs. Ways to control this economic pest include physical removal of the pest at any stage of life, removal of the Tree-of-Heaven host tree, and pesticide applications.

At this time of year, the life stage to target is the egg mass. Each egg mass results in about 30 to 50 lanternflies, so its impact is significant. The Spotted Lanternfly can be managed during any of its life stages, however. The first stage are the egg masses found from September to June. Look for a white cluster of about ½ inch. The next stage is called the early stage nymph where the Spotted Lantern fly has the appearance of a black insect with white spots measuring about ⅛” to ¼”. A late stage nymph, found July through September measures about half ½” and is black and red with white spots. The adult Lantern fly is found July through December and is about 1” long. It is a distinctive, winged pest.

These pests were first discovered in Berks County, before spreading to much of the rest of Pennsylvania. Feel free to join us in our quest to solve the pest problem! More information is available on the Pennsylvania Department of Agriculture website.

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