Sparrow, starling, or other bird nests, inside or outside of the premises, are common points of origin. Bird nests in fireplaces and attics can be common sites. Wasp nests which are found under eaves and in attics are also common sources of carpet beetle and clothes moth infestations. Another source of food material for carpet beetle and clothes moth larvae is accumulations of animal hair which may be found quite often in homes where pets are kept. These loose tangles of hair may be sufficient to sustain a small population of fabric pests for a long period of time, even in places where all wool products might have been treated.
Prevention is important in fabric pest.
It is important to frequently and thoroughly vacuum carpet and upholstery, and dry clean susceptible clothing such as the woolens. To not store discarded garments, fur or animal pelts, old wool rugs, feather pillows, or such vulnerable fabrics for long. Soiled fabrics such as synthetic fibers can also be attacked by these insects. Baseboards, behind door casings,under heat radiators, and inside furnace or air conditioning registers should be cleaned with a vacuum cleaner. In garment bags or storage boxes , moth balls would work fine.