What You Need to Know About Spotted Lanternflies in New Jersey
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.
What Are Spotted Lanternflies?
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:
- Gray forewings with black spots
- Bright red and black hind wings visible during flight
- Black legs and head
- Yellow abdomen with black bands
- Strong jumping ability
Because of their striking appearance, spotted lanternflies are often mistaken for moths or butterflies.
Spotted Lanternfly Life Cycle
Understanding the spotted lanternfly life cycle is important for effective control and prevention.
Egg Stage
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:
- Tree bark
- Outdoor furniture
- Decks
- Fences
- Rocks
- Firewood
- Vehicles and trailers
Nymph Stage
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 Stage
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.
What Do Spotted Lanternflies Eat?
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:
- Maple trees
- Grapevines
- Apple trees
- Fruit trees
- Ornamental plants
- Hardwood trees
This feeding weakens plants and places stress on already vulnerable vegetation.
Why Are Spotted Lanternflies Dangerous?
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.
How Honeydew Damages Trees and Property
As lanternflies feed, they excrete excess sap in the form of honeydew. This substance can:
- Promote black sooty mold growth
- Attract ants, wasps, and other insects
- Damage outdoor surfaces and landscaping
- Create sticky residue on decks, patios, and vehicles
Heavy infestations may stunt plant growth, weaken trees, and contribute to crop loss.
Are Spotted Lanternflies Harmful to Humans or Pets?
Fortunately, spotted lanternflies are not considered dangerous to humans or animals.
They do not:
- Bite or sting
- Spread diseases
- Damage structures like termites
- Harm pets directly
However, their presence can become overwhelming during peak season, especially when large populations gather around homes, trees, and outdoor spaces.
How to Get Rid of Spotted Lanternflies
The most effective way to reduce spotted lanternfly populations is to target egg masses before they hatch.
Remove and Destroy Egg Masses
If you find egg masses on your property:
- Scrape the eggs into a plastic bag or container
- Fill the bag with rubbing alcohol or hand sanitizer
- Seal and dispose of the bag properly
Removing egg masses during fall, winter, and early spring can significantly reduce future infestations.
Inspect Vehicles and Outdoor Items
Because spotted lanternflies often lay eggs on vehicles and movable objects, homeowners should regularly inspect:
- Cars and trucks
- Campers and trailers
- Outdoor furniture
- Firewood
- Equipment and tools
This helps prevent accidental spread to new areas.
If You See It, Stomp It
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.
Professional Spotted Lanternfly Control in New Jersey
Large infestations often require professional treatment to effectively manage populations and protect trees and landscaping.
Professional pest control services can help:
- Identify active infestations
- Locate hidden egg masses
- Apply targeted lanternfly treatments
- Reduce future population growth
- Protect valuable trees and plants
Homeowners can learn more about Viking Pest Control’s spotted lanternfly services for residential and commercial properties throughout New Jersey and the surrounding region.
What To Do If You Spot a Spotted Lanternfly in New Jersey
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.
Protect Your Property From Spotted Lanternflies with Viking Pest Control
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.
