Insects and Spiders - native

Fall Webworm Moth (Hyphantria cunea) on Sep 6, 2023

Submitter does not have a specimen

Description of specimen

thick web type nest in a neighborhood birch tree.. I think it may be gypsy moth


Thank you for your report! That's not Spongy Moth (AKA Gypsy Moth), which doesn't spin webs that cover the leaves. Those webs are made by a native species, Fall Webworm (Hyphantria cunea). Although the webs are unsightly, the caterpillars rarely defoliate trees. Pesticide treatments aren't recommended, because the caterpillars are protected in their webs. Affected branches can be cut from the tree and destroyed, if wanted.

Tom Valente
Sept. 6, 2023, 4:20 a.m.