Spotted Lanternflies: What You Need to Know

The spotted lanternfly has quickly become one of the most talked-about pests in the United States. Since it was first detected in Pennsylvania in 2014, this insect has spread and is now appearing in parts of the Midwest. At Clear Pest Pros, we believe that public understanding is essential for slowing its spread. Below are some common questions we see regarding this invasive pest.

What exactly is a spotted lanternfly?

The spotted lanternfly, Lycorma delicatula, is a type of planthopper originally from Southeast Asia. Adults have gray wings with black spots and show bright red patches when they open their underwings. While they may look colorful, they are far from harmless.

Why are they considered a problem?

Spotted lanternflies feed on trees, vines, and crops by piercing the plant and sucking out sap. This weakens the plant and leaves behind sticky honeydew that promotes mold growth. Over time, infested plants lose vigor, and entire crops can be destroyed.

How do they reproduce?

Each female lays egg masses in the fall, containing 30 to 50 eggs. They attach these masses not only to trees but also to rocks, vehicles, furniture, and other surfaces. In the spring, nymphs hatch and grow through several stages before becoming adults by midsummer. Because eggs can hitchhike on so many surfaces, human activity helps them spread quickly from state to state.

What should I look for if I think I have seen them?

Adults often cluster in large groups on trees, especially the Tree of Heaven, grapevines, apple trees, and other fruit or hardwood species. You might also notice egg masses with a mud-like covering on outdoor surfaces. Signs of damage include wilting plants, sticky residues, and sooty mold buildup.

Why is public awareness so important?

According to the National Pest Management Association (NPMA), early detection and reporting are the most effective tools for slowing the spread. The NPMA regularly publishes educational updates urging the public to report sightings. Clear Pest Pros supports this effort because every report helps authorities respond before an infestation becomes established.

What is the economic impact of spotted lanternflies?

For farmers and agricultural businesses, the risks are serious. Grapes, apples, and stone fruit trees are all highly vulnerable, and vineyards have already seen major losses in areas where infestations are severe. If the pest continues to spread, the costs in lost crops, damaged trees, and management efforts could reach astronomical figures.

What can homeowners and property managers do?

During fall and winter, inspect outdoor surfaces for egg masses and destroy them if found. In summer, watch for swarms of adults clustering on trees and vines. If you suspect an infestation, report it to your state agriculture department and contact a licensed pest control provider. At Clear Pest Pros, our technicians are trained to identify invasive species, helping protect landscapes and investments from long-term harm.

The spotted lanternfly is more than a nuisance. It is a serious invasive pest with the potential to damage crops, weaken trees, and cost communities significant resources. Its rapid spread across the Midwest and Eastern United States highlights the importance of awareness, reporting, and professional intervention. Clear Pest Pros is committed to staying at the forefront of education and treatment, giving property owners the knowledge and support they need to help slow the spread and safeguard both agriculture and local landscapes.