Silverfish are about 1/2 inch bluish-silver wingless insects with hard exoskeleton. They look like fish and their movements are very similar. They have 2 long antennas on their head and 3 prominent “tails” on rear.

Females’ egg numbers vary. Depending on species, their quantity may range from 2 to 20 eggs per day. Silverfish can lay eggs at any season of the year and grow from larva to adult in 3-4 months.

Silverfish feed on mold, fungi and carbohydrates (such as sugars, starch or cellulose). This means that your food (especially dry foods), clothes, shampoos, soaps, books, wallpaper, plants and many other things are in danger.

Though the insects may be found almost anywhere, they prefer dark, moist, moderate temperature areas (60-80 degrees Fahrenheit) and places with good sources of food. Unless the food is gone, they remain close to its supply.

Therefore, the usual silverfish habitats are:

  • bathrooms

  • kitchens

  • laundry rooms

  • attics

  • basements

They are commonly found in/under sinks, bathtubs, in storage boxes, bookcases, old stacks of papers (magazines, newspapers, etc.), on closet shelves, behind wallpaper, wall voids, window or door frames, and baseboards.

The bugs just love the taste of starch in book bindings, paper on which there’s glue or paste, various fabrics, bathroom products, cereals, flour, crumbs and plant materials.

Chemical Treatment

Residual insecticide can be applied to the area where silverfish are commonly seen.

The Residual insecticide can be used in virtually all areas safely. Keep children and animals away from the treated area until the product is totally dry, about 1-4 hours.

This will be applied to wall/floor junctions throught the affected area, spray under washing machines, cookers etc. Pay particular attention to dark secluded areas and around boilers.

This can be Re-apply the treatment after 30 days to ensure total eradication of the Silverfish. Call our office to discuss prices

Natural Silver Fish Bugs Exterminators

First of all, determine the places of infestation. It is not too difficult – they are always near their food. Secondly, select the product that is more appealing to you.

Here is a list of available solutions: citrus sprays, spices, diatomaceous earth, mothballs, lavender oil, cucumbers, cedar shavings.

  1. Citrus sprays. These sprays smell like citrus and are specifically manufactured to eliminate bugs like silverfish which are repelled by the scent. Apply it generously in the alleged places of infestation. Don’t use citrus smelling cleaning sprays; they are not organic and will be of no help.

  2. Spices. They don’t like strong scents of bay leaves, sage, and whole cloves (not ground!). Place the spices in porous sachets where the insects appear. It can help deter and discourage them from coming back.

  3. Diatomaceous earth (food grade). It is white powder that dehydrates silverfish and other bug pests and causes their death. Dust all areas where they can hide and they will die simply from walking through it. Diatomaceous earth for silverfish is efficient as long as it is dry. Though the powder is lethal to pests, it’s non-toxic to people and pets.

  4. Mothballs. The bugs can’t stand their smell either. Place mothballs wherever they are seen frequently.

  5. Lavender oil. Silverfish are repelled by its scent and stay away. It proved to be a good method of clearing them out of your home. Mix a tea spoonful of concentrated lavender oil in 1/2 a small spray bottle of water. Wipe down the walls with the mixture, spray it onto the carpet, around the skirting boards, cupboard doors, pieces of furniture and other items at your home. Let them dry. Be sure to refresh the smell from time to time. Don’t apply it to delicate fabrics, as they can be damaged.

  6. Cucumbers. The scent of cucumbers is a nice repellent for silverfish. Cut a cucumber into thick slices and put them everywhere the pests may be hiding. Replace the slices once they dry up.

  7. Cedar shavings. Cedar pieces or shavings should be also helpful at getting rid of them.

Important Tips

  • Silverfish are known to like damp areas (75 to 95% humidity), that’s why it is recommended to reduce it to about 50%. This can be done with the help of dehumidifiers and fans. Fix everything that leaks, minimize available water, ventilate the attic and closed rooms.

  • Caulk cracks and crevices on walls, floors, and holes around pipes to prevent the insects from using them as an entrance.

  • Inspect and clean ALL your possessions, including the contents of boxes, wardrobes, cupboards, book shelves, clothing, etc.

  • Put all possible food sources into plastic air-proof containers.

  • Vacuum, mop and dust your house frequently to remove eggs.

  • Repair or remove wallpaper.


The chemicals used to treat silverfish can be toxic when first applied to the area infested. One of our technicians will go through this with you before a treatment is carried out. All care and attentions is made where children and pets are on the property.

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