They look beautiful at first glance — wings patterned with gray and red, fluttering in late summer sunlight. But make no mistake: the spotted lanternfly (Lycorma delicatula) is one of the most destructive invasive pests Maryland has ever faced.
Since its arrival, this sap-feeding insect has damaged vineyards, trees, and ornamentals across the Mid-Atlantic, leaving behind sticky honeydew, black mold, and severe plant stress. If you’ve noticed clusters of strange, polka-dotted insects around your yard or driveway, it’s time to take them seriously.
At Pest Shield Inc., we’re helping Maryland homeowners understand why spotted lanternflies are such a big problem — and what you can do to get rid of them safely and effectively.
What Is the Spotted Lanternfly and Where Did It Come From?
The spotted lanternfly is an invasive planthopper native to China, Vietnam, and parts of India. It was first detected in Pennsylvania in 2014 and has since spread into Maryland, Virginia, Delaware, and beyond.
According to the Maryland Department of Agriculture (MDA), lanternflies were first confirmed in Maryland in 2018 and have since established populations in several central and western counties, including Frederick, Carroll, and Washington.
These pests feed on the sap of more than 70 different plants, including fruit trees, hardwoods, grapevines, and ornamental species. As they feed, they excrete honeydew, a sugary waste that coats leaves and surfaces, leading to the growth of sooty mold and attracting stinging insects like wasps.
The biggest threat isn’t just the mess — it’s the long-term stress this constant feeding causes. Repeated infestations can weaken plants, reduce crop yields, and even kill young trees.
Why Are Spotted Lanternflies Such a Big Problem in Maryland?
While the lanternfly doesn’t bite, sting, or damage homes directly, its impact on Maryland’s environment and agriculture is huge. The University of Maryland Extension calls it a “major nuisance and economic threat” for several reasons.
First, lanternflies are prolific hitchhikers. They lay egg masses on almost any surface — tree bark, stones, vehicles, outdoor furniture, even siding. Each egg mass can contain 30–50 eggs, and once they hatch in spring, nymphs quickly spread to new areas by crawling or hitching rides on cars and delivery trucks.
Second, they’re highly adaptable. Though they prefer the Tree-of-Heaven (Ailanthus altissima) — an invasive tree also common in Maryland — they’ll feed on native maples, black walnut, birch, and fruit trees when available.
Finally, their sticky honeydew residue creates hazardous conditions around homes and farms. It coats decks, patios, and cars, encouraging mold growth and attracting other pests. For farmers and vineyard owners, the loss of productivity can be devastating.
Simply put, Maryland’s moderate climate and abundant vegetation make it the perfect environment for this pest to thrive — and spread.
How Can You Identify Spotted Lanternflies at Each Stage?
Knowing what to look for is your first line of defense. The spotted lanternfly has four distinct stages in its annual life cycle, and you can find them almost year-round in Maryland.
- Egg Masses (Fall–Winter):
Gray, mud-like patches about an inch long, found on tree trunks, outdoor furniture, vehicles, or stones. Eggs overwinter and hatch in spring. - Early Nymphs (Spring):
Tiny, black insects with white spots, appearing around April or May. They hop between plants and feed on young stems and leaves. - Late Nymphs (Early Summer):
Red-and-black stages with white spots, about ½ inch long, appearing in June and July. - Adults (Mid–Late Summer):
Large (about 1 inch), gray wings with black spots and bright red underwings. Active from July through the first frost.
If you spot any of these forms, especially egg masses or clusters of adults, act quickly. Early detection makes control far easier.
How Can Homeowners Get Rid of Spotted Lanternflies?
While total eradication isn’t realistic right now, you can significantly reduce populations and help slow their spread. Fall and winter are the most effective times to intervene.
Here’s what you can do:
- Destroy Egg Masses in Fall and Winter
During the cooler months, inspect trees, firewood, stones, and outdoor furniture for egg masses. Scrape them off with a plastic card or putty knife and place them in a container of rubbing alcohol or soapy water to kill them.
➡️ Learn more from the MDA’s official lanternfly guide.
- Remove Tree-of-Heaven on Your Property
This fast-growing invasive tree is the lanternfly’s favorite host. If you have it on your property, consider removal or herbicide management. The University of Maryland Extension recommends using targeted removal methods — simple cutting often causes regrowth.
- Use Sticky Bands and Tree Traps (Safely)
In spring and summer, apply sticky traps around tree trunks to capture nymphs climbing upward. To protect birds and small mammals, cover traps with mesh or use circle traps instead.
- Avoid Spreading the Pest
Check vehicles, campers, and outdoor gear before traveling out of quarantine zones. The Maryland Department of Agriculture urges residents to inspect vehicles and materials before transport.
- Call Licensed Pest Professionals
Because chemical treatments can harm pollinators and beneficial insects, it’s best to leave pesticide applications to licensed pest management professionals. Pest Shield Inc. uses EPA-approved, environmentally responsible products when intervention is necessary, ensuring safe and effective control.
What Can You Expect in Maryland’s Ongoing Fight Against Spotted Lanternflies?
The state has ramped up efforts to slow the spread. The MDA continues to expand its quarantine zone to include more Maryland counties each year. This means businesses and residents transporting materials (like landscaping products, wood, or equipment) must inspect and remove any lanternflies or egg masses.
While complete eradication remains unlikely, community cooperation makes a measurable difference. Scraping egg masses, reporting sightings, and managing host trees all reduce local populations — and help protect Maryland’s agriculture and native ecosystems.
At Pest Shield Inc., our technicians stay in close communication with state agencies and extension specialists to track lanternfly activity across the region. When we visit your property, we’ll help identify potential risk areas and implement preventive strategies tailored to your landscape.
How Can Pest Shield Help You Protect Your Property?
Our Maryland-based team has spent years defending local homes, farms, and businesses from invasive pests like the spotted lanternfly. With over 60 years of combined pest management experience, Pest Shield Inc. understands how local conditions — from Frederick’s wooded hills to the farmlands of Carroll County — influence pest behavior.
When you call Pest Shield, you’re not just getting a treatment; you’re getting a partner in long-term protection. We’ll help you recognize egg masses, manage vulnerable trees, and choose safe, science-based solutions that keep your property pest-free.
Stop Spotted Lanternflies Before They Spread
If you’ve seen these insects around your home, don’t wait until spring hatch season. Fall and winter are your best opportunities to act — and Pest Shield Inc. is ready to help.
Call Pest Shield Inc. at (301) 829-0060 or email info@pestshieldinc.com today to schedule your free lanternfly inspection. We’ll assess your property, identify risks, and help you protect your trees and outdoor spaces before these invasive pests return.
Pest Shield Inc. — Maryland’s trusted defense against invasive pests.
