Fall webworm (red race) webbing at terminal end of branch. Photo by: Brian Kunkel, Ornamentals IPM Specialist, University of Delaware.

Fall webworms (red race) crawling around inside webbing. Photo by: Brian Kunkel, Ornamentals IPM Specialist, University of Delaware.

Fall webworm adult female and eggs. Photo provided by: Pennsylvania Department of Conservation and Natural Resources – Forestry Archive, , Bugwood.org

Fall webworm webbing at terminal end of branch. Photo provided by: G. Keith Douce, University of Georgia, Bugwood.org

Fall webworm larva, black head race. Photo provided by: Lacy L. Hyche, Auburn University, Bugwood.org

Fall webworm larva, red race. Photo provided by: Pennsylvania Department of Conservation and Natural Resources – Forestry Archive, , Bugwood.org

Wheel bug nymph eating fall webworm larva. Photo provided by: Lacy L. Hyche, Auburn University, Bugwood.org