The spotted lanternfly (pictured), known as an insect that damages plants, has reappeared across Maryland. According to the Maryland Department of Agriculture, the spotted lanternfly, which typically hatches between late April and early May, was first introduced to the United States from China and Southeast Asia in 2014 and spread throughout Maryland by 2018.
Previously, a pest that had to be eradicated due to concerns about severe crop damage, recent research indicates that the spotted lanternfly does not cause fatal damage to the ecosystem.
Emily Zobel, an expert in agricultural and food systems at the University of Maryland, explained, “Although this insect looks somewhat threatening due to its large size and colorful appearance, it does not cause fatal harm to garden or landscaping plants. However, the sweet-tasting secretions they excrete can hinder plant growth and cause inconvenience by clinging to outdoor furniture or vehicles, making them look messy.”
Experts analyzed that while there were almost no natural predators when the spotted lanternfly was first introduced, its population is now gradually being naturally controlled as birds and predatory insects feed on them.
Accordingly, authorities are not recommending unconditional eradication to residents but are urging them to report any sightings to the authorities to help assess the infestation. Expert Zobel advised, “You do not necessarily have to kill the spotted lanternfly when you find one,” adding, “Caution must be exercised to avoid mistakenly killing innocent native insects due to the misuse or overuse of pesticides.”
Meanwhile, the spotted lanternfly larvae appearing in Maryland have a black base with white spots. When they become adults, their forewings are light brown and their hindwings are red, characterized by black spots on both.