Common entry points for rodents:

  • Overhanging tree branches
  • Cables
  • Ventilator
  • Air bricks
  • Broken panes
  • Gutter pipes & under eaves
  • Beneath weak foundations
  • Doors, windows


Rats and mice are more susceptible than insects to fumigants. Treatment with phosphine which is designed to control insect pests will also kill rats and mice.

Rodents: Prevention & Control

Store location is important. A detached store is less liable to infestation.

Store management, good hygiene and regular surveillance can help to prevent rodent harbourage. E.g. piles of unwanted building materials, damaged containers, packing cases, waste paper and floor sweepings should be removed completely and their accumulation prevented.

Apply rodent proofing techniques.

  • Cover openings (ventilators, windows, sewage etc.) with gauge wire netting or expanded metal.
  • Fix kick plates to the outer face of wooden doors
  • Fix barriers on stack
  • Paint with gloss paint any rough-walled building or barrier, to make surfaces too smooth for rodents to climb.
  • Proof any horizontal pipes, wires and cables running between buildings or in the interior of the building.


The use of chemicals in a food store is toxic to all mammals - including humans - and food stocks could be contaminated.

It is generally prefered to have measures in-place, such as the ones described above, that will prevent the occurence of rodents.

If it is necessary to introduce rodent control measures in a food warehouse - e.g. traps, poison baits, fumigants, acute rodenticides or coagulants - contract the services of a reputable company able to provide the necessary safety assurances.