A common place to find bagworms is along walls and ceiling corners. These high, hard-to-reach areas are frequently missed during routine cleaning and tend to collect dust and cobwebs. Bagworms use these materials to build and reinforce their cases, attaching themselves to surfaces where they can remain undisturbed.
They often appear as small gray or brown tube-shaped specks stuck to walls. Because they resemble lint or debris, many people overlook them. Careful inspection of corners and vertical surfaces can help identify them early before numbers increase.