According to Maine Forest Service entomologist Tom Scheelk, since 2015 browntail moth infestations have been slowly increasing in size and scope, spreading into western Maine and north along the coast.
A browntail moth winter web
A browntail moth winter web.
Browntail moth caterpillars
Browntail moth caterpillars emerge in clusters in late spring.
Volunteers prune browntail moth winter webs at Scott’s Landing on Deer Isle in March 2020.