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Biscuit Beetle


Biscuit beetles (Stegobuim paniceum)are found world wide but more are common in warmer regions.

They are pests of food stores and domestic larders and kitchens.


Adults are 2-3mm in length, brown with a partially humped thorax and are often confused with the Common Furniture Beetle (Woodworm). The larvae are small and maggot like and whitish in colour.

Signs of Infestation

The appearance of small black beetles through out property, often found on windows and sills. Small holes and damage to food packaging and dried food goods.


The biscuit beetle can be a serious pest in the food industry as an infestation can result in food stuff having to be destroyed. This is also the case on a smaller scale in domestic dwellings.


The female lays up to 60 eggs on or near larval food and the eggs hatch in 1-2 weeks. The newly-hatched larvae can chew through most packaging materials to reach food. Preferred foods include spices and cereal products including biscuits, pasta and bread, they will also feed on other hard or dried goods such as rodent baits and dried pet foods. After 2-4 months the larvae pupate in cocoons often within the food source. After 1-2 weeks they emerge as adults. The adults fly and are short lived with a life span of 3-4 weeks.


  • Locate and remove the source of the infestation.
  • A thorough cleaning of the area should be carried out, with a vacuum cleaner used to get in to cracks and crevices.
  • An application of a residual insecticide following the cleaning can be carried out.

Contact the Pest Control Team for more information:

Tel: 0191 433 3131