Invasive Spotted Lanternflies Appear in Boston

The invasive insects were identified by faculty and students on the Boston University campus this month.

Updated on Oct. 16, 2026 in Botany

Close-up of a spotted lanternfly on a textured tree trunk, illustrating the invasive insect species now impacting Boston's local ecosystem. — Biologists at Boston University have confirmed the presence of invasive spotted lanternflies on campus, marking a new threat to local tree populations. AI Illustration. Upload story photo >

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Should residents actively kill invasive insects spotted in their local community?

Spotted lanternflies, an invasive insect species, have been confirmed on the Boston University campus. Biology students and faculty identified the pests, which are known for causing significant ecological damage to trees.

Why it matters

The spotted lanternfly is an invasive species that thrives outside its native range due to human activity and causes harm to local ecosystems by damaging tree bark.

A spotted lanternfly measures approximately 1 inch in length, featuring black spots and red hind wings. Researchers are currently evaluating the use of fungal spores or native wasps as potential biological control agents.

The players

Boston University

This private research university in Boston is currently managing the discovery of the invasive insects on its campus.

The details

The insects drink sap from tree tissues, creating holes in the bark and excreting a sugary liquid that coats leaves in moldy soot. They are particularly drawn to Tree of heaven species, which are common along the Charles River on campus.

2014: Spotted lanternflies were first observed in the United States.
October 2026: Professor observed spotted lanternflies on the university campus.

The Big Picture

The discovery follows the pattern of spread established by the 2014 detection in Berks County, Pennsylvania. This mirrors the trajectory of invasive species moving through the U.S. via shipping containers and expanding beyond their native range.

The presence of these insects could eventually threaten local trees if biological controls like fungal spores or native wasps are not successfully implemented. Residents should remain aware of potential damage to trees in the Charles River area.

The takeaway

Property owners should watch for sticky residue on leaves, which indicates the presence of these sap-feeding insects. Identifying and reporting infestations early can help prevent the spread of the lanternflies to new areas.