The PA Department of Agriculture has made the attached documents available for information regarding the Spotted Lanternfly.

What is Spotted Lanternfly (SLF)? The SLF is an invasive insect that is damaging certain agricultural commodities and ornamental plants across Pennsylvania and neighboring states and is a nuisance pest to homeowners. Spotted Lanternfly are quickly spreading throughout the region and to new areas, often due to human activities and movement. The Township has received notice from property owners of their presence.

The SLF reaches adult stage around Late July to August. Adult SLF lay eggs throughout late summer and into the fall. Each female can lay several egg masses, each containing approximately 30 to 50 individual eggs.

SLF feed on many types of vegetation and can cause significant damage to grape vines, hops, fruit trees, maples, black walnut, birch, willow, and other hardwoods, ornamentals, and crops. The SLF excrement, called Honeydew, is sticky and sugary. The Honeydew attracts bees, wasps, flies, and other insects. Additionally, the honeydew coats anything below the insects (vegetation, vehicles, decks, yard furniture) and can cause a black, sooty mold to grow on those surfaces. Home remedies or homemade pesticides are not recommended, but instead follow the Penn State Extension management recommendations and pesticide safety guidance. Follow all chemical label instructions and precautions.

Allegheny and Beaver Counties are quarantined counties. Pennsylvania defined quarantine zones where PDA staff detected SLF. Residents should follow Penn State Extension guidance for management on residential property and preventing the spread of SLF.

Resources

Spotted Lanternfly Toolkit PDA

2021 PSU SLF Management Guide

SLF Checklist for Residents