Stored product insects cover a group of beetles, weevils and moths that infest dry goods — flour, grain, cereals, dried fruit, nuts, spices and pet food. In commercial settings they can spread through racking and spillage; at home they usually arrive inside a single packet.
Signs of stored product insects
- Small beetles or larvae in dry goods
- Webbing or clumping in flour and cereals
- Insects in cupboard corners near dry stores
- Damaged or perforated packaging
Health risks
- Contaminated food should be discarded
- Significant compliance risk for food businesses
Property damage
- Loss of stock and spoiled product
- Contaminated production and storage areas
What you can do yourself
- Discarding one packet while the true source remains elsewhere
- Spillage under racking and units is routinely overlooked
When to call a professional
- Tracing the source across stock and storage areas
- Treatment of affected areas alongside a stock inspection
- A housekeeping and monitoring programme for commercial sites
Prevention tips
- Rotate stock and check use-by dates
- Store dry goods in sealed containers
- Clean spillage under and behind shelving and racking
Frequently asked questions
Do I have to throw all my food away?
Not necessarily all of it. We will help identify what is affected and what can safely be kept.
Dealing with stored product insects right now?
We cover Merseyside, Cheshire, Greater Manchester and Lancashire. Send your postcode and we will confirm the earliest appointment.


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