The larvae of household casebearer, which belong to the Tineidae family in the Lepidoptera order, subsist on materials that contain keratin and proteins, such as fabrics, causing damage to textiles. This destruction ranges from minor to severe based on the extent of their infestation. Their consumption of these materials results in holes and deterioration, necessitating costly repairs or replacements of the affected items.

To prevent household casebearer infestations, it is important to store clothing and textiles properly. Use airtight containers or bags for storage, especially for wool and silk materials that are particularly attractive to them. Regularly clean wardrobes and vacuum storage areas to remove any larvae or eggs. Moth deterrents such as cedarwood or lavender sachets can also discourage them from settling in.

Once household casebearer infestations occur, remove and isolate the affected textiles. Thoroughly clean the storage area by vacuuming to remove any larvae and eggs. Exposing textiles to sunlight and fresh air can help, as household casebearer prefer dark, undisturbed areas. Use sticky traps to capture adult household casebearer, and consider non-toxic pheromone traps as a monitoring tool. During recovery, frequently inspect textiles for reinfestation and maintain cleanliness in storage areas. Keep freshly-cleaned items separate from untreated ones to prevent spread.

Household casebearer larvae feed on a variety of materials rich in keratin and proteins. Their damage is more than cosmetic; they can cause severe deterioration, with mild to severe damage depending on infestation level. Their habits result in holes in textiles, leading to costly repairs or replacements and significant inconvenience.