How to treat a Silverfish infestation

These insects are more than a nuisance. Silverfish are well known for their destructive feeding habits. In large numbers they can pose a serious problem to books, photographs, paintings, plaster and other household items containing starch or cellulose.

Silverfish survive in most environments, but thrive in conditions of high humidity and can often be found in dark, damp areas such as kitchens, bathrooms, basements and attics.

Characterised by a silvery-blue colour, tiny scales and wiggling movements resembling that of a fish – these pests are also commonly known as fish moths or carpet sharks.

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Learn about Silverfish

  • Silverfish are a cigar shaped, silver/grey wingless insect.
  • They are found in damp areas, often the kitchen or bathroom.
  • They are often trapped in baths, basins or chinaware as they cannot climb the smooth surfaces.
  • Occasionally damages paper but feeds on residues of starchy substances such as glues, wallpaper paste and carbohydrate food debris.

Always try to keep areas such as bathrooms and kitchens moisture free. Use extraction systems to rid of any dampness in the air.

Mop up water spillages and you could even use de-humidifiers to help eliminate.

Generally basic residual insecticidal sprays will help when treating against silverfish.

The spray will be on the walls (floor junctions) and infected areas.

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