In the fall, the insects use their silk and pieces of the tree to create a camouflaged, cocoon-looking bag, which they fill with up to 1,000 eggs! The eggs hatch in late spring or early summer, when super tiny, black larvae emerge. At 2 mm, they're barely larger than a pinhead, which makes them light as a feather.

Where do bagworms come from?

Bagworm's Habitat. Bagworms inhabit regions of the United States that are east of the Mississippi River. They live in trees and shrubs, and prefer coniferous trees and arborvitae, juniper and cedar. The larvae construct bags and attach themselves to the host plant where they will feed.

How do you get bagworms?

Bagworm infestations will only be exclusive to the outdoors and in vegetation, so search in your vegetation especially in your conifers like juniper, pine, arborvitae, cyprus, cedar, and spruce. They might also infest smaller shrubs and bushes, so also look in this vegetation.