The Spotted Laternfly (SLF) is a threat to Pennsylvania agriculture, including tree-fruit, hardwood and nursery industries. This invasive pest is also a major threat to homeowners’ trees and properties in general.
The Spotted Lanternfly attack fruit trees by feeding on the sap in the trunks, branches, twigs, and leaves. When the insect feeds on sap, it excretes a sweet sticky fluid called honeydew has a lot of remaining sugar and fungi will grow on it. Growth of fungi is black in color and called sooty mold.
Bucks County is part of the quarantine. The quarantine is in place to stop the movement of Spotted Lanternfly to new areas within or out of the current quarantine zone and to slow its spread within the quarantine.
There is one generation of SLF per year. The eggs are laid in the fall and hatch in the spring. These egg masses are laid on hard surfaces and protected with a mud-like covering. Some ways to manage the spread of the SLF is to scrape the eggs, brand trees to catch the nymphs, remove the tree-of heaven, and apply insecticides.
Read more about the listed management techniques by reading Penn State Extension’s Guide for Homeowners.