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THE GARDEN SAGEA library of living things
Wildlife & landscape pests · Western North Carolina field companion

Fall webworm

Hyphantria cunea

Fall webworm webs enclosing leafy branch tips
Fall webworm webs enclosing leafy branch tipsEric Vadillo ↗ · CC BY-SA 3.0
Photo contextThis image illustrates the nest and feeding location; it is not a close-up identification of a larva.

Loose webs enclosing leafy branch tips are a late-season clue with a reassuringly familiar explanation.

Record
Landscape reference
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In the landscape.

Plants & places

Many deciduous trees, including hickory, walnut, persimmon, and sweetgum.

Recognize the damage

Larvae consume foliage inside enlarging webs at branch ends.

Before you act

Check whether leaves are enclosed and larvae are still feeding; note the season and amount of affected canopy.

A sensible first response

Small reachable webs can be opened or removed where necessary. Usually tolerate late damage on established trees; never burn nests or sacrifice large healthy branches just for appearance.

When to look

Summer into fall; more than one generation can occur in the region.

In Western North Carolina

Usually more of an appearance issue than a threat to a healthy mature WNC shade tree.

Identification, lookalikes & further notes

Identification

Hairy, variable-colored caterpillars share a web that encloses their food; later webs can look untidy and conspicuous.

Lookalikes & limits

Eastern tent caterpillars build in forks during spring. Web-spinning mites leave much finer silk and stippled foliage.

In the garden

Larvae consume foliage inside enlarging webs at branch ends.

What would help next

Record the host plant, date, fresh damage, and a clear photograph of the animal or insect. A damage match narrows the search; it does not establish an identification.

LOOK CLOSELY

Two views, a closer look.

Place two photographs beside one another. Compare the overall plant with leaves, flowers, or bark when those views are available. Captions identify what each photograph actually shows. Images are not at the same scale; species references may show different cultivars.

Fall webworm webs enclosing leafy branch tips
Fall webworm webs enclosing leafy branch tipsEric Vadillo ↗ · CC BY-SA 3.0
Photo contextThis image illustrates the nest and feeding location; it is not a close-up identification of a larva.
Fall webworm webbing and fed leaves on boxelder
Fall webworm webbing and fed leaves on boxelderCarlos Lopez-Vaamonde, David Agassiz, Sylvie Augustin, Jurate De Prins, Willy De Prins, Stanislav Gomboc, Povilas Ivinskis, Ole Karsholt, Athanasios Koutroumpas, Fotini Koutroumpa, Zdeněk Laštůvka, Eduardo Marabuto, Elisenda Olivella, Lukasz Przybylowicz, Alain Roques, Nils Ryrholm, Hana Sefrova, Peter Sima, Ian Sims, Sergey Sinev, Bjarne Skulev, Rumen Tomov, Alberto Zilli, David Lees ↗ · CC BY 3.0
Photo contextThe source identifies this as fall webworm injury on boxelder. The photograph shows webbing and affected foliage, not a measure of whole-tree damage. Resized and converted to WebP; full composition retained.

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