Look Out for the Spotted Lanternfly
A recent USA Today article cites that more than 45 counties across Pennsylvania and New Jersey are under quarantine because of the emergence of the spotted lanternfly. The spotted lanternfly is an invasive species originating from Asia that, for the past 10 years, has migrated to the northeast and mid-Atlantic region of the United States, including to Virginia.
Counties in Virginia that are currently under quarantine include: Frederick, Clarke, Warren, Prince William, and Warren counties. Individual nests of these insects have been found in Fauquier, Madison, and Albermarle counties. It is our expert opinion that Loudoun County could be in trouble within the next two years due to the spread of these insects.
How do Spotted lanternflies cause so much damage? They suck sap from stems and branches, weakening and damaging the plant, while also creating a sticky, sugary residue that attracts other insects. This residue also promotes the growth of a thick layer of sooty mold that further damages the plant or tree.
Our own consulting biologist, Dr. Robert Ray, notes that “spotted lanternfly nymphs feed on a wide variety of host plants including fruit trees, ornamental trees, woody trees and vines, and thus threaten primarily the grape and fruit tree industries. Studies in Korea and the US have shown that the adults have a strong preference for ailanthus trees, which they use for feeding, mating, chemical sequestration and depositing egg masses. This preference makes the tree of heaven a target that should be monitored in order to control potential Lanternfly infestations.”
Thankfully, these invasive pests are not harmful to people or their pets, however our trees, vegetation and crops are in danger. New Jersey officials had said that the lanternfies in their region will soon be in their adult stage and will lay eggs throughout September. It is advised that you be on the lookout for egg masses around your property including on things around your house like tarps, trash cans, dog houses, and pools as well as on your crops and trees.
If you suspect that the spotted lanternflies have laid eggs on your property, please take pictures and send them to us so that we can do an assessment. Have other questions or concerns? Reach out to us anytime!