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Fall Webworm Tent

Fall webworm, Hyphantria cunea (Lepidoptera: Erebidae) tent on hickory. Vicky Bertagnolli, ©2020, Clemson Extension

Fall webworm, Hyphantria cunea (Lepidoptera: Erebidae) tent on hickory.
Vicky Bertagnolli, ©2020, Clemson Extension

Tent Structure

Fall webworm caterpillars incorporate leaves, and sometimes entire branches in silken tents spun, typically, at branch tips. (In contrast, eastern tent caterpillar, Malacosoma americanum, typically builds tents in the crotches of trees.) Fall webworm larvae develop and feed within these weblike tents. Tents contain feeder leaves, leaf fragments, caterpillar droppings, and cast skins.

Feeding Habits

Fall webworms feed on about 120 species of hardwood trees. Common hosts include pecan, hickory, walnut, elm, poplar, willow, cottonwood, and sweetgum.

For more information, see Fall Webworm Management.

If this document didn’t answer your questions, please contact HGIC at hgic@clemson.edu or 1-888-656-9988.

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