Larder beetle

The genus Dermestes belongs to the family Dermestidae, within the order Coleoptera. These are widely distributed synanthropic insects known for their ability to damage animal-derived food products and various materials within storage facilities.

In an agronomic context, larder beetles primarily affect processed plant products or organic residues accumulated during storage. They may infest grain stocks containing animal protein residues, dried fish, meat, leather, wool, as well as seed collections or herbarium specimens that utilize animal glue or protein-based adhesives.

The life cycle of the larder beetle includes egg, larva, pupa, and adult stages. The female lays eggs in crevices or directly onto the substrate. The larvae are highly mobile, possess characteristic hair covering, and represent the most voracious stage that causes significant damage to stored commodities through feeding.

Damage is characterized by deep boreholes in products, structural destruction of materials, and heavy contamination of storage areas with frass and shed larval skins. This pest can ruin large quantities of commercial goods, reducing their market value and rendering them unfit for sale or consumption.

Protection measures require strict phytosanitary management of storage facilities. Key control practices include:

• Thorough mechanical cleaning of warehouses to remove dust and product debris.
• Application of wet or aerosol disinfestation using approved insecticides.
• Utilization of fumigation in cases of severe infestation.
• Maintaining optimal temperature and humidity conditions to inhibit insect reproduction and growth.