By Todd Lanigan, forest health specialist, Eau Claire, Todd.Lanigan@wisconsin.gov, 715-210-0150
Fall webworm started showing up in early July. This native insect feeds on deciduous trees and shrubs and appears every year in yards and forests. It is often noticed first by the loose webbing over branch tips. It can even completely cover a small tree with webbing. If you look inside the webbing, you will find partially eaten leaves, frass (caterpillar poop) and both live and dead caterpillars.

Fall webworm larvae feed within webbed enclosures at branch tips. Credit: Courtney Celley, US Fish & Wildlife Service.
Recognizing that trees and vegetation are among the features that make communities special places for residents and visitors, American Transmission Co. will continue funding for planting projects in communities in its service area through its Community Planting and Pollinator Habitat programs.
We deeply appreciate the commitment to urban forestry demonstrated by our 2019 Tree City, Tree Campus, and Tree Line USA participants. Thank you for your hard work!
Thanks to the efforts of researchers over the past few decades, we have a solid understanding of the ecological benefits of urban forests, such as reduced greenhouse gases, decreased stormwater runoff, and lessening of the urban heat island effect. In contrast, knowledge of the human health benefits of urban forests is still developing. Existing reviews of health benefits have focused more broadly on nature, green space, and greenness rather than concentrating specifically on urban trees.

