Spotted lanternflies have become one of the most destructive invasive pests in the Northeast and Mid-Atlantic regions. Since first appearing in Pennsylvania in 2014, these insects have rapidly spread throughout New Jersey and neighboring states, threatening agriculture, landscaping, vineyards, orchards, and residential properties.
Although spotted lanternflies are not dangerous to humans or pets, their growing populations can severely damage trees, plants, and crops. Understanding how to identify spotted lanternflies, where they lay eggs, and how to stop infestations is essential for homeowners and businesses throughout New Jersey.
Spotted lanternflies are invasive planthoppers native to parts of Asia, including China, India, and Vietnam. Despite their name, they are not true flies.
Adult spotted lanternflies are approximately one inch long and half an inch wide. Their appearance changes depending on whether their wings are open or closed.
Key identifying features include:
Because of their striking appearance, spotted lanternflies are often mistaken for moths or butterflies.
Understanding the spotted lanternfly life cycle is important for effective control and prevention.
Female spotted lanternflies lay egg masses from late September through early winter. Egg masses typically contain 30–50 eggs and are often covered with a gray, mud-like protective coating.
Eggs may be found on:
Eggs hatch between late spring and early summer. Young lanternflies, called nymphs, cannot fly but are excellent jumpers and crawlers.
As they mature, nymphs pass through several growth stages before becoming adults in mid-to-late summer.
Adult spotted lanternflies are most active from late summer through fall. During this stage, they feed heavily, mate, and continue spreading to new areas.
Most spotted lanternflies live for about one year.
Spotted lanternflies feed by piercing plants with a straw-like mouthpart called a proboscis and sucking out sap from trunks, stems, and leaves.
Their preferred host is the invasive Tree of Heaven (Ailanthus altissima), but they also feed on many other plants and trees, including:
This feeding weakens plants and places stress on already vulnerable vegetation.
Spotted lanternflies pose a major threat to agriculture, landscaping, and native ecosystems. Large infestations can weaken or kill plants over time, especially vineyards and orchards.
One of the biggest problems caused by spotted lanternflies is the sticky waste they produce, known as honeydew.
As lanternflies feed, they excrete excess sap in the form of honeydew. This substance can:
Heavy infestations may stunt plant growth, weaken trees, and contribute to crop loss.
Fortunately, spotted lanternflies are not considered dangerous to humans or animals.
They do not:
However, their presence can become overwhelming during peak season, especially when large populations gather around homes, trees, and outdoor spaces.
The most effective way to reduce spotted lanternfly populations is to target egg masses before they hatch.
If you find egg masses on your property:
Removing egg masses during fall, winter, and early spring can significantly reduce future infestations.
Because spotted lanternflies often lay eggs on vehicles and movable objects, homeowners should regularly inspect:
This helps prevent accidental spread to new areas.
Adult spotted lanternflies are quick jumpers, but many residents follow the simple rule: “If you see it, stomp it.”
Approaching from the front often improves your chances of successfully killing them before they jump away.
Large infestations often require professional treatment to effectively manage populations and protect trees and landscaping.
Professional pest control services can help:
Homeowners can learn more about Viking Pest Control’s spotted lanternfly services for residential and commercial properties throughout New Jersey and the surrounding region.
New Jersey residents are encouraged to report spotted lanternfly sightings, especially in newly affected areas.
Residents should also remain cautious when traveling between counties to avoid unintentionally transporting egg masses or live insects.
Spotted lanternflies continue to spread across New Jersey and the Mid-Atlantic, making early prevention and professional treatment more important than ever.
If you’re noticing spotted lanternflies around your home or business, Viking Pest Control can help identify problem areas and develop a customized treatment plan to protect your property.
Learn more about Viking Pest Control or schedule a free estimate today.