ELIZABETH, NJ - The spotted lanternfly, an Invasive insect that threatens native trees and plants and can destroy valuable crops, has been spotted in  both Westfield and Springfield. The New Jersey Department of Agriculture currently has eight counties under “quarantine” for the spotted lanternfly, including Burlington, Camden, Gloucester, Hunterdon, Mercer, Salem, Somerset, and Warren.

Union County may soon be next on that list.

Residents are asked to be on the lookout for the spotted lanternfly, which can destroy native trees like the black walnut, red maple, silver maple, and river birch. The spotted lanternfly is also notorious for damaging crops and ornamental flowers.

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The adult spotted lanternfly is easily recognized by black speckles on whitish upper wings and red lower wings. The insect lays egg masses of 30-50 eggs over a small area of about 1 inch, typically on flat surfaces including the outsides of vehicles. Masses laid on trees are mainly found about 10 feet above ground. The invasive species of Asian origin was originally confirmed to be spreading in Berks County, PA, in September 2014 however, in 2018, the plant hopper was seen in New Jersey.

Lanternflies feed on more than 70 different trees and plants, but are particularly dangerous to New Jersey flora such as grapevines, roses, and the river birch, silver/red maple, and black walnut trees. Because of the lethality to these particular NJ plants, a lanternfly infestation could potentially prove damaging to New Jersey’s economy.

Residents are advised to kill any lanternflies they encounter, whether by force or sprayed insecticide. Since the spotted lanternfly typically lays its eggs in October, residents are also instructed to be on the lookout for egg sacs and, if spotted, scrape them into a plastic bag full of rubbing alcohol or hand sanitizer with at least 60% alcohol content.

Residents are also advised to inspect their cars for lanternflies or eggs after traveling to one of the aforementioned quarantine counties, particularly if on a hiking or other nature trip, and act accordingly to prevent the lanternfly from hitchhiking back to Union County.

Spotted lanternfly sightings should be reported to the New Jersey Department of Agriculture by calling 609-406-6943 or contacting slf-plantindustry@ag.nj.gov.

“Union County residents have worked hard to preserve open space and protect native habitat in our public parks, so we all have a stake in ensuring that the spotted lanternfly does not take hold in our area,” said Union County Board of Chosen Freeholders Chairman Al Mirabella. “I encourage everyone to help do a service to our native ecosystems by learning how to recognize this pest and its eggs, and destroying any that you encounter.”

For more information, including photos of the lanternfly and its eggs at various stages, visit nj.gov/agriculture/divisions/pi/prog/spottedlanternfly.