Massive Webbing in Tree: Tent Caterpillars, Not Spiders

Huge web (20+ ft) over branches like pantyhose. Asks if venomous spiders.

Identification: Tent Caterpillars

Not spiders. Tent caterpillars (or webworms) spin silken shelters. If leaves stripped inside web → confirmed.

Tent caterpillar guide. Also search "webworms."

Prune out webs if accessible. Bacillus thuringiensis (BT) for large infestations. Not venomous.

Pests: Fall Webworm on Oak: Limited Control, Tree Will Recover; Fall Webworms in Trees: Cosmetic, Manageable; Silky Webbing on Oak Tree: Harmless Bark Lice (Psocids); Tent Caterpillars in High Trees: Safe and Effective Control; Tree Webbing Without Leaf Damage: Harmless Bark Lice (Psocids); Fall Webworms in Your Tree: Web Removal and When to Spray; Spider Webs in Colorado Apartment: Funnel-Web Spiders, Not Cocoons; Thick Webbing on Live Oak: Bark Lice (Psocids), Beneficial; Spider Mites on Poplar: Charcoal Dust Look, Weak Miticides; Attracting Catalpa Caterpillars: Sell Caterpillars with Trees

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