Although these leafy bags appear harmless and often inconspicuous on mildly infested evergreens, bagworms are actually very aggressive and hungry pests! Bagworms are the larvae of moths. The characteristic brown bags are often seen attached to twigs in late August. The eggs hatch in May or June. Newly hatched caterpillars crawl out of the old bag and immediately begin feeding on leaves. “The bagworm feeds on trees such as Arborvitae, Juniper, Pine, Spruce, and many other evergreen species. It also attacks certain deciduous trees such as Black Locust, Honey Locust, and the Sycamore,” warns nursery worker, Eloisa.

If you think you have these hanging around in your garden, please visit our website to read more about bagworm control.