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Winter Moths: Tree warden asks residents to report concentrations

Winter moths have been sighted in town and the town's tree warden is asking residents' help in pinpointing their concentrations.

Click image to report winter-moth sightings using our online form, or contact Tree Warden Todd Robbins,


The small, light-brown males have begun to appear around porch lights and headlights, Tree Warden Todd Robbins said. "The hatch just occurred on Thanksgiving and the bands are now collecting," he said, referring to the sticky material that has been wrapped near the bases of town trees to capture flightless females before they lay their eggs. Many residents have banded trees on their property as well.

Residents sighting concentrations of male and/or female winter moths are asked to report their findings to Robbins. A reporting form is available for use on this website.

Winter moths are invasive insects that threatens hardwoods, including maple, ashes and oaks; and fruit trees. Repeated defoliation by winter-moth larvae in the spring will lead to the tree's death.

Earlier this month, dozens of volunteers assisted in banding trees in Fort Williams Park to protect against winter-moth defoliation.