What type of environment do dermestid beetles not typically infest?

Dermestid beetles are known primarily as pests that infest dry organic materials. They are commonly found in environments where there are food sources for their larvae, such as stored food products in pantries, dried goods, and organic debris. These beetles are particularly notorious for damaging textiles, especially those containing keratin, such as wool or fur.

In gardens, while insects in general may be present, dermestid beetles typically do not infest plant materials or living plants as they require a diet that consists of dead organic matter. Therefore, gardens do not usually provide the suitable environment these beetles thrive in. They prefer more enclosed or stored spaces where their food sources are found. Thus, the correct answer identifies that gardens are not a typical environment for dermestid beetles.