Fallweb Worm Caterpillar

An illustration of a fallweb worm caterpillar. Fall webworm, Hyphantria cunea, is a moth in the family Arctiidae known principally for its larval stage, where it creates the characteristic webbed nests on the tree limbs of a wide variety of hardwoods in the late summer and fall. It is mainly an aesthetic pest and is not believed to harm otherwise healthy trees. It is well-known to commercial tree services and arboriculturists

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