Silverfish Guide
Silverfish are common household pests in the UK, known for their distinctive appearance and nocturnal habits. While they pose little direct threat to humans, their presence can be bothersome, especially when found in kitchens, bathrooms, or stored goods.
This guide provides essential information about silverfish, their impact, and effective management strategies.
THE DANGERS
Why we control Silverfish
Silverfish do not transmit diseases or pose significant health risks to humans, but their feeding habits can cause damage to household items. They feed on starchy substances, such as paper, glue, fabric, and even dry foods, making them a nuisance in homes, libraries, and storage areas. Their presence can also indicate high humidity, which may lead to other problems, such as mould growth.
Property Damage
Silverfish they can cause harm by feeding on various household materials. They are known to consume paper, wallpaper paste, book bindings, clothing, and even stored foods. Over time, silverfish infestations can result in damage to valuable items like books, photos, or important documents.
Did you know:
Silverfish are one of the most ancient insects on the planet. They even pre-date the dinosaurs by 100 million years
SILVERFISH BIOLOGY
TYPES OF SILVERFISH IN THE UK
Common Silverfish (Lepisma saccharinum): The most common species in the UK, easily recognized by its silvery-grey, elongated body, and quick, darting movements.
Firebrat (Thermobia domestica): A close relative of the silverfish, but with a preference for warmer environments like boiler rooms or near heat sources. Firebrats have a similar appearance but are typically darker in colour.
SILVERFISH APPEARANCES
Silverfish have a distinctive, fish-like appearance, with a smooth, elongated, and silvery-grey body that tapers toward the rear.
They measure around 12-19 mm (about 0.5 to 0.75 inches) in length. Their bodies are covered with fine scales that give them their metallic sheen, and they move quickly with a wiggling motion, resembling a fish in water.
SIGNS SILVERFISH ARE AROUND
Signs of silverfish activity include:
- Damage to Paper and Fabrics: Silverfish leave irregular holes in paper, books, wallpaper, and fabrics.
- Shed Skins: Silverfish moult throughout their lives, and you may find tiny, discarded skins in infested areas.
- Droppings: Silverfish droppings are small, black, and pepper-like, often found near their feeding sites.
- Sightings: You may spot silverfish darting quickly across floors or walls at night, particularly in moist areas.
Did you know:
Silverfish can live up to 8 years and can survive for months without food if moisture is present.
MANAGING SILVERFISH
PREVENTING SILVERFISH
To prevent silverfish from entering your home or business:
Control Moisture: Fix any leaks, use dehumidifiers, and improve ventilation in damp areas.
Seal Entry Points: Block gaps around windows, doors, and foundations to prevent silverfish from entering.
Store Food Properly: Keep dry foods in airtight containers to avoid contamination.
Reduce Clutter: Remove old papers, cardboard, and fabrics that silverfish might feed on.
WASTE MANAGEMENT
Silverfish are attracted to organic waste, so it’s important to manage waste effectively. Dispose of old newspapers, cardboard boxes, and other paper products promptly, and clean up food crumbs and spills regularly to remove potential food sources.
SILVERFISH MANAGEMENT
Control measures for silverfish include:
Insecticidal Treatments: Spraying insecticides in cracks and crevices where silverfish hide can reduce their numbers.
Diatomaceous Earth: This natural powder can be spread in areas where silverfish are found, as it dehydrates and kills them on contact.
Sticky Traps: Place traps in areas where you’ve spotted silverfish to monitor and reduce their population.
DIY SILVERFISH MANAGEMENT
For those looking to tackle silverfish infestations on their own:
Use Dehumidifiers: Reducing moisture in problem areas is key to discouraging silverfish.
Apply Natural Repellents: Cedar oil and cinnamon are natural deterrents that can help repel silverfish.
Seal Cracks and Gaps: Block potential entry points around windows, doors, and skirting boards.
PROFESSIONAL SILVERFISH MANAGEMENT
If a silverfish infestation becomes severe, it’s best to consult a professional pest control service. Experts can assess the situation, use targeted treatments, and help prevent future infestations by addressing underlying issues like humidity and entry points.
By understanding silverfish habits and taking the necessary preventive measures, you can reduce the likelihood of an infestation and protect your home or business from the damage they cause.
