Pa. wants to squash lanternflies to ensure future food security

spotted lanternflies

Lancaster, Pa. — Following months of hyper-focus on the availability of food, Agriculture Secretary Russell Redding was joined by Penn State College of Agricultural Sciences Dean Richard Roush and Animal and Plant Health Inspection Service (APHIS) executive director for field operations Carlos Martinez at Cherry Hill Orchards, where they urged Pennsylvanians to act now against the spotted lanternfly for the sake of food security.


Native to Asia and first found in Pennsylvania in 2014, the spotted lanternfly is capable of decimating entire grape vineyards and damaging fruit orchards, hops, walnuts, hardwoods and decorative trees.

These industries contribute billions annually to Pennsylvania’s economy. According to an economic impact study completed earlier this year by Penn State’s College of Agricultural Sciences, this bad bug could cost Pennsylvania up to $324 million annually in economic impact with a loss of more than 2,800 jobs if not contained.

In addition to endangering agriculture, the spotted lanternfly threatens the ability to enjoy the outdoors during spring and summer months.

They’re known to swarm in the air, cover trees and coat decks and play equipment with their excrement, known as honeydew. Honeydew, along with sap from weeping plant wounds that result from feeding of spotted lanternfly, can attract bees and other insects and also stimulate the growth of mold and other fungi.


Projects being pursued by Penn State, along with U.S. Department of Agriculture and Pennsylvania Department of Agriculture scientists and other institutions, include studies on disrupting the lanternfly female reproductive cycle; testing organic control methods such as a fungal-based spray and natural insect predators; investigations of the pest’s flight behavior, where it might travel and the conditions it needs to flourish; and research on its feeding preferences, including its penchant for tree of heaven and at-risk specialty crops such as grapes.

Among the most novel approaches is taking advantage of the spotted lanternfly’s attraction to poles and other tall objects to design traps and barriers.

USDA’s Animal and Plant Health Inspection Service (APHIS) is working with the Pennsylvania Department of Agriculture (PDA), universities, private industry, and other government agencies to advance effective strategies for battling the spotted lanternfly.


The Pennsylvania Department of Agriculture and Penn State College of Agricultural Sciences have worked collaboratively with the USDA over the past several years to educate the public and slow the spread of spotted lanternfly in Pennsylvania. With Penn State leading research and education efforts, Pennsylvania Department of Agriculture and USDA teams of inspectors follow up on reports of spotted lanternfly in Pennsylvania’s newly quarantined counties and counties outside of the quarantine zone, treating confirmed sightings as appropriate. These teams also conduct proactive surveys for the invasive insect to suppress new populations.

In early March, Pennsylvania added 12 counties to the area quarantined for spotted lanternfly. The 14 counties previously quarantined had widespread insect populations. The new 12 counties have isolated infestations. A detailed map of quarantined counties serves to illustrate how the insect travels — by hitchhiking with people travelling from infested areas to new areas.

It is crucial for anyone travelling in and outside the quarantined counties to be vigilant and look before they leave to prevent transporting insects to a new area. Pennsylvanians — even though inside the quarantine zone — should also report insects online or via phone at 888-422-3359.

Spotted lanternfly reports from the public provide valuable data for researching insect populations and slowing its spread. For more about the spotted lanternfly, visit or the Penn State Extension website.


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