Spotted Lantern Fly

The Spotted Lanternfly (SLF), Lycorma delicatula (White), is an invasive planthopper native to China, India, Vietnam that was discovered in 2014 in Pennsylvania in Berks County, and has spread to other counties including Montgomery County. Residents are seeing Spotted Lanternflys throughout Cheltenham Township and Montgomery County, which are currently under quarantine. 

The quarantine is in place throughout Pennsylvania to stop the movement of Spotted Lanternfly (SLF) to new areas within, or out of the current quarantine zone, and to slow its spread within the quarantine. The best advice for residents and business owners is to destroy and  report any Spotted Lanternflys. 

The Pennsylvania Department of Agriculture is advising residents to SQUASH any SLFs you see, SCRAPE away any egg masses you find and REPORT any sightings.

What Is Being Done

Penn State University and Extension, United States Department of Agriculture (USDA), and PA Department of Agriculture (PDA) have joined forces to control and contain the spread of SLF.  Penn State University is leading the research efforts currently underway to answer the many questions we have about the insect’s biology, pesticide studies, and the ability of the insect to adapt to the environment in Pennsylvania. 

Identifying the Spotted Lanternfly
The adult Spotted Lanternfly is approximately 1” long and 1/2” wide at rest. It has four life stages: egg masses, early nymph, late nymph and adult, as shown in the photos below.

Spotted Lanternfly

How You Can Help
This insect is easily moved if no one is looking.  If you are in the quarantine area, please “Look Before You Leave.” Inspecting your vehicles, trailers, or any outdoor items before you move around or out of the quarantine is important.  If possible, don’t park in tree lines and keep windows rolled up when you park your vehicle.  Know the life stages of the insect and when to look for them.

Using the recommendations developed by Penn State Extension, take control measures on your own property.  Any efforts you make in destroying the Spotted Lanternfly or it’s egg masses helps your property and community.

Report sightings of the Spotted Lanternfly.  All reports of SLF outside of the quarantine are taken seriously and will be investigated.  Reports within the quarantine are registered in a database for USDA and PDA.  The database is used to help determine properties for treatment.  Treatment is based on location, risk, and available funds.  

Please join the effort to control and prevent the spread of Spotted Lanternfly.  We need everyone to protect their properties, communities, and the Commonwealth from this invasive insect that has the potential to change our landscape and quality of life.

Click here to download PennState Extensions Homeowners Management Strategies

 click here to download the "Spotted Fly Management Calendar."

Management Strategies Include:

1. Scraping eggs from a plant with a plastic card or knife into a container with rubbing alcohol or hand sanitizer

2. Milk Jug, Polythene, and Foil Trap
Note: Glue Traps have also caught birds, bats, and squirrels, and are not recommended.  If you have an infestation on your property, here are some No-Glue SLF trap ideas from the Lehigh Valley Audubon Society.

3. Treating host plants

a. Chemical control, click here for more information.

b. Click here for information on choosing a qualified pest management or lawn care company.

Business and the  Spotted Lanternfly
Businesses also play an important role.  Business owners should incorporate pest management into their vegetation management plans and work to minimize the possibility of this insect hitching a ride on products they produce and ship. Businesses who ship products within and out of the quarantine zone are required to have or hire companies who have a Spotted Lanternfly Permit.  

Guides from PennState Extension on Spotted Lanternfly Management:
Spotted Lanternfly Management for Homeowners
Spotted Lanternfly Management for Landscapers
Spotted Lanternfly Management Calendar
Spotted Lanternfly Management Pesticide Safety
Spotted Lanternfly Checklist for Quarantine Area Residents
Useful Links