National Geographic : 1911 Apr
WINTER NESTS OF THE BROWN-TAIL MOTH, CONSISTING OF LEAVES AND WEB ATTACHED TO TWIGS In these nests from 300 to 400 minute larvae pass the winter PILE OF I20,000 WEBS OF THE BROWN-TAIL MOTH GATHERED AND DESTROYED AT YORK, MAINE York Harbor, Maine, has become thoroughly infested with the brown-tail moth. This illustration is a photograph of a pile containing 120,000 of the winter nests of the brown tail gathered and destroyed in an effort to free the community from this pest. More than 40 million larvae were contained in these nests. The brown-tail moth was imported by a Boston florist about 20 years ago on roses from Holland or France. It is a serious enemy of orchard, forest, and shade trees and ornamental shrubbery, and has long been recognized as one of the worst orchard pests of Europe. During the last three years it has been imported in enormous numbers on nursery stock from northern France, Holland, and Belgium, and carried to 22 States. There is no law to prevent such importations. The hairs on the caterpillars produce the brown-tail rash, which often affects residents of infested districts.