06/07/2026
eggs have hatched and early instar nymphs are active on the UMass Amherst campus. This is an established population that was first detected in 2025.
Look for nymphs on the new growth of tree-of-heaven (Ailanthus altissima), as well as the new growth of a wide variety of trees and shrubs. Nymphs may favor cultivated roses, multiflora rose, cultivated and wild grape, perennials, black walnut and butternut.
Does your community have an established population of spotted lanternfly? Check this map provided by the MA Department of Agricultural Resources to find out: https://experience.arcgis.com/experience/a25afa4466a54313b21dd45abc34b62d/page/Dashboard?views=Spotted-Lanternfly
Seeing spotted lanternfly nymphs in Massachusetts at a location not included in the above map? Please report them here: https://massnrc.org/pests/slfreport.aspx
Note: if trying to photograph or capture, nymphs move quickly and will change position to hide from you. They are also impressively strong jumpers.
Photo: A black and white spotted early instar spotted lanternfly (Lycorma delicatula) nymph rests on a tree-of-heaven (Ailanthus altissima) branch. This nymph was approximately 0.5 cm. long. (Tawny Simisky, UMass Extension)