Fall Webworm

PSU Entomology — The fall webworm is a widely distributed native pest of shade trees and shrubs and appears from late summer through early fall. It feeds on almost 90 species of deciduous trees commonly attacking hickory, walnut, birch, cherry, and crabapple. ...More…

Fall Webworm

Virginia Tech Extension — Native to North America, the fall webworm occurs throughout the United States and southern Canada. Its hosts include more than 100 species of deciduous forest, shade, and fruit trees, with preferences varying from region to region. Newly emerged ...More…

Fall Planting, Potting Mixes, Hoses, Fall Webworm

Home and Garden Television — Paul prepares us for a fall harvest by showing what to plant at the end of the summer. Discover how to make your own potting mixes, get the skinny on garden hoses, and learn to cope with the fall webworm. Gardening by the Yard: Fall Planting, ...More…

Fall Webworm

Old House Web — The nest of fall webworm are a common part of the landscape in late summer. Eggs are laid in the spring and the larvae hatch out and go through a number of stages of development. The larvae change color but always have black spots and are hairy. ...More…

NCSU: ENT/ort-046 Fall Webworm

NC State University Coop Extension — Stephen Bambara & James R. Baker CAUTION: This information was developed for North Carolina and may not apply to other areas. Hyphantria cunea (Drury), Arctiidae, LEPIDOPTERA General Information Fall webworm moths are medium sized (1.2-1.5 ...More…

Fall Planting, Potting Mixes, Hoses, Fall Webworm

Home and Garden Television — Paul prepares us for a fall harvest by showing what to plant at the end of the summer. Discover how to make your own potting mixes, get the skinny on garden hoses, and learn to cope with the fall webworm. Use containers to add color and fragrance ...More…

Fall Webworm

University of California IPM — Larvae of the fall webworm are pale brown or gray caterpillars. Their bodies are covered with long white hairs arising from black and orange spots. Fall webworms spend the winter as pupae. Moths emerge in late spring and lay eggs that hatch into ...More…

Fall Webworm

University of California IPM — UC Management Guidelines for Fall Webworm on Prune. Larvae of the fall webworm are pale brown or gray caterpillars with long white hairs arising from black and orange spots. Fall webworms spend the winter as pupae on the tree trunk or ground ...More…

Fall Webworm

University of California IPM — If insecticide treatments are required, localized treatments on individual trees applied when evidence of caterpillars is first observed are generally all that is necessary. The addition of a wetting agent to increase penetration of the webbing ...More…

Fall Webworm Visible in Trees

University of Illinois Extension — Conspicuous light brown webs are visible in shade trees. These are not Eastern tent caterpillars a pest of very early spring. These are not gypsy moth, which does not make webs. This is the work of the fall webworm. Inside these visible webs are ...More…