All 3 carpet beetle species have similar life cycles see table 1 for the tabular version of this information.
Find carpet beetle source.
Adults lay eggs on food sources such as furs woolen fabric and carpets.
Closets cabinets and pantries attics basements garages inside air vents and air ducts adult carpet beetles are attracted to light and can be found near light fixtures and window sills.
Household lint not wool carpets is probably the main food source for the beetle larvae in most homes.
Carpet beetles are fond of keratin too.
In extreme or neglected infestations a buildup of old larval skins can even lead to skin or respiratory irritation caused from persistent contact or prolonged inhalation of the larval hairs.
Still i could not find the food source for the carpet beetles but knowing there was a previous rodent infestation was important.
Usually this consistent source will be an old damaged or dirty rug or other piece of fabric.
Carpet beetle larvae like the dark and can commonly be found in areas of the home that do not receive much light including.
This protein is abundant in natural materials like wool leather hair and similar fibers.
Vacuum the infested area.
Infestations extend beyond carpets.
When our home was flooded we got a carpet beetle.
Look in the above mentioned areas underneath your furniture in dark corners inside the pantry on the carpets and where you store your clothes.
Stored clothing old rugs and carpeting or dirty sheets are all particularly likely infestation sites.
The suggestion was to remove all edible natural fibers like clothing towels bedding and beds from the home.
Lots of dead carpet beetle adults and lots of rodent droppings.
The source of the infestation can also be hidden inside a wall or ceiling void.
I need to find the source of my varied carpet beetles.
Find the carpet beetles.
So items such as carpets rugs and furniture which are made from these materials are an easy target of carpet beetles.
Carpet beetles are found in wasp or bee nests which can sometimes be inside wall voids.
They can also be feeding in mouse rat or other animal nests that can be located inside voids garages or crawlspaces.
They feed on hairs from people and pets lint food crumbs dead insects the kinds of things that accumulate in inaccessible corners or under heavy furniture.
Carpet beetle infestations last longest when larvae have a consistent source of food.
I worked my way to the area below the kitchen and immediately noticed two things.
I pulled back the insulation and found lots more droppings.