The Massachusetts Department of Agricultural Resources (MDAR) has confirmed the presence of the invasive spotted lanternfly in Swampscott.

The spotted lanternfly is an invasive sap-feeding insect from Asia.The insect was first detected in the U.S. in Pennsylvania in 2014. The tree-of-heaven is the pest’s primary host, but spotted lanternflies attack a variety of trees, shrubs and vines. 

Adult spotted lanternflies have brownish-gray forewings with black spots and red hind wings. During the winter, gray egg masses can be found on smooth surfaces. The egg masses resemble mud, according to the MDAR. Adult spotted lanternflies typically emerge around mid-summer.

The first known spotted lanternfly infestation in Massachusetts was confirmed in 2021.

MDAR survey staff confirmed spotted lanternfly nymphs in Swampscott after following up on a report submitted through the state’s pest reporting system. 

Spotted lanternflies can feed on a variety of plants and trees. Large infestations can damage agricultural crops and become a nuisance in outdoor spaces. They can gather in large numbers and produce a sticky, sugary substance, called “honeydew,” which can coat surfaces and plants,

Spotted lanternflies do not bite or sting.

Residents may see MDAR and U.S. Department of Agriculture teams inspecting trees in town as they work to determine the extent of the infestation. Residents are also encouraged to report suspected sightings and include photos when possible.