Sawtoothed grain beetle (Oryzaephilus surinamensis)
The sawtoothed grain beetle is a common food pest, especially found in dry grain products. It is a small, flat, brown beetle with a distinctive saw-like ridge on its thorax. While not dangerous to humans, it contaminates food and leads to significant food waste.
Identification
Small, flat, brown beetle (2–3 mm) with a sawtoothed thorax. Moves through dry foods such as rice, flour, and cereals. Leaves behind signs of food contamination.
Habits
The sawtoothed grain beetle:
- nests in dry foods like rice, flour, cereals, pasta, and nuts
- reproduces in and around stored food products
- thrives in warm, dry environments such as kitchen cabinets and pantries
- remains active year-round in heated spaces
One female can lay hundreds of eggs, and even a small infestation can escalate rapidly.
Control
If sawtoothed grain beetles are found in or near food, professional pest control is recommended.
A professional will:
- conduct a thorough inspection and identify infested areas
- advise on disposal of contaminated products
- apply targeted treatments to cupboards, shelving, and structural areas
- provide prevention tips including sealing and hygiene measures
DIY solutions like sifting or freezing food are not always effective – hidden insects and eggs may survive and lead to reinfestation.
Summary:
The sawtoothed grain beetle is a common pantry pest that contaminates food and spreads quickly. Professional pest control is the fastest and most effective way to eliminate the problem permanently.
Pest control visits starting from €149