Extension > Garden > Diagnose a problem > What's wrong with my plant? > Deciduous Trees > Black Walnut > Webbing on ends of branches
Black Walnut > Trunk/Branches > Webbing on ends of branches
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Fall webworm
Hyphantria cunea
- Produces silken webbing that covers the ends of branches
- Chews entire sections of leaves, leaving major veins and can defoliate trees in high infestations
- Yellowish or greenish with long, fine white hairs with two rows of black spots down its back; approx. 1 inch long at maturity
- Feeding occurs from late July through September
- More information on Fall webworm
