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Plaster beetle guide

The Lathridiidae family includes several small beetles, including plaster beetles, named for their fondness for new or damp plaster. These beetles all thrive in damp indoor conditions. Below, we explore what they look like, where they live, and how to identify signs of their presence.

Lathridiidae

Characteristics and identification

  • Adults in this family of beetles range from 1-3mm long, are soft-bodied, and oval-shaped, with a slightly flattened look.
  • Yellowish-brown to dark brown, with fine ridges or pits on wing covers.
  • Part of the Lathridiidae family, adult plaster beetles can fly and are often seen near lights in damp areas.
  • Their small size makes it easy to confuse adult plaster beetles with other small insects.
  • Often found near damp plaster or moldy areas, a plaster beetle infestation may indicate indoor moisture issues.

 

Habits and habitats 

  • Commonly found in newly built homes with fresh plaster and excess moisture. 
  • Plaster beetle habitats also include damp storage areas like mills and warehouses, where mold can grow on food or other materials.

 

Life cycle

  • The time it takes for plaster beetle larvae to develop into adults depends on the specific species within the Lathridiidae family. Under favorable conditions, the plaster beetle life cycle from egg to adult typically lasts one month. 
  • The life cycle also heavily depends on environmental factors, such as temperature and humidity.

 

Plaster beetle behaviors, threats, and dangers

Plaster beetles are not known to bite or cause structural damage, but they can be a nuisance when present in large numbers. Because they thrive in damp conditions, their presence often points to underlying moisture issues that can lead to other problems like mold. A plaster beetle infestation can also lead to food contamination in storage areas where mold is present. Addressing the source of moisture is key to preventing future infestations.

Are plaster beetles hard to get rid of?

Because plaster beetles rely on damp conditions to survive, removing excess moisture is often the most effective way to reduce their numbers. However, unless the source of damp is fully resolved, such as a buildup in drain lines, plaster beetles may keep returning. Bioremediation drain line treatments can help address hidden moisture sources.

For long-term results, professional plaster beetle treatment is recommended to address the root cause and help stop the cycle.

Need help getting rid of plaster beetles?

We understand how frustrating a plaster beetle infestation can be, especially when it keeps coming back. Our technicians can help identify the source of excess moisture and provide tailored pest control solutions to support effective plaster beetle treatment.

Frequently asked questions

No. Plaster beetles don’t bite or spread disease, but large numbers can be a nuisance and may indicate excess moisture indoors.

They don’t damage structures, but they feed on mold, so their presence could indicate excess moisture.

Plaster beetles are often introduced through building materials or come in from outside through small cracks when conditions indoors are damp.

Plaster beetles feed on mold and mildew found in humid or damp environments.

Yes, especially if the infestation keeps returning. Professionals like Pesto-X can help identify moisture sources and apply proper treatment.

Get in touch with any questions or to find out more about our services.

Presto-X provides tailored pest control management to a wide variety of industries.