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Silverfish and firebrats are very similar in appearance. They both wingless, having a fish-like appearance and their flat body, which is tapered at both ends, is covered by overlapping scales.
Their habitats are a little different.
silverfish prefer damp, moderate temperature places such as basements, laundry rooms, and under sinks.
Firebrats, as their name would suggest, survive best in hot, moist places.
They all prefer a dark, moist environment and require a large supply of starchy foods or molds.
Silverfish and firebrats are considered to be nuisance pests that can feed on wallpaper pastes, natural textiles, books, and papers.
They also feed on mold or fungi that can grow on various surfaces.
Firebrats and silverfish are fast-moving and can travel throughout buildings.
Once these insects find a good source of food, however, they stay close to it.

Firebrats have a dull-gray appearance.
Adult firebrats are about one-half inch long.
They prefer temperatures around 100 degrees F and are found in boiler rooms and bakeries, around ovens, hot-water heaters and pipes.
Firebrats follow pipelines from the basement to rooms on lower floors,
living in bookcases, closet shelves, behind baseboards and behind window or door frames.
A relative humidity of 70 percent to 80 percent is favorable to firebrats because they do require some moisture.
Firebrats are rarely found outdoors, while silverfish may be found outdoors.
They may habitat all year long.

Silverfish and firebrats diets are high in protein, sugar, or starch, including cereals,
moist wheat flour, starch in book bindings, and paper on which there is glue or paste.
They are hardy and can live without food for many months.



Get Rid of Firebrats

cyper wp

Cyper WP

cyper wp

Control Measures and Recommendations

Sources of any undue moisture, such as faulty plumbing or condensation that provide the humidity favored by silverfish and firebrats should be eliminated.
Dehumidifying reduces the moisture content of the air that these insects find essential. Some methods for dehumidifying include:
Mend leaking pipes.
Ventilate closed rooms and attics.
Eliminate standing water.
Use a dehumidifier an air conditioner.
Use silica gel which acts like a dessicant such as  Drione Dust.

Regularly vacuuming cracks and crevices with a narrow vacuum tip also can be a good method to physically remove these insects from their harborages.

  • Removal of food sources , stored in tight containers.

  • If you have a slight problem of silverfish inside your home, a good residual perimeter treatment of:
     Cyper WP insecticide or
     D-Fense SC  insecticide, sprayed around entry points and foundation of the house would be sufficient.
    Spray along the foundational wall, with a two or three foot band.
    Cyper WP or D-Fense SC:
    Cypw WP and D- Fense SC last for two to three months.
    Both products are odorless.

    However if you have a more severe problem with silverfish, look into stored boxes and the insulation in your attic. It is best to dust or bait these areas.
    When you use baits or dusts, you do want to get it as close as possible to their habitats to be effective.
    You never want to bait and dust in areas that are visible.
    It needs to be in hidden areas such as :
    Behind Refrigerators and Ovens
    Light fixtures
    Electrical outlets
    Under siding .

    Recommended dusts would be D-Fense Dust or    Drione Dust. These dust last for 6 months.
    . Apply it in the attic in the insulation area in particular, under siding, in storage boxes,light fixtures, electrical outlets.
    Apply it to areas that can be kept dry. An easy way to apply dust, if broadcasting in the insulation area would be the use of a duster called the  Dustin Mizer,cranking out a large amount of dust at a time.
    You will want one lb. of dust per 800-1000 sq. ft.

    For smaller dust jobs the  Bulb Duster or  Bellow Duster would work fine.

    Another very effective way is the use of baits in the attic or on the outside. Intice Granular Bait works very well
    against silverfish as well as roaches and crickets.
    It can be sprinkled out in a self contained one lb. bag, in all the areas you believe the silverfish are hiding.
    Silverfish Paks are designed to go inside. Silverfish Paks destroy these year-round pests that eat wool, paper, linen and cellulose materials. Place odorless, wafer-thin packets under rugs, behind curtains, in closets and dark hidden places . Place away from children and pets. Niban and Silverfish Paks both are designed to attrack the silverfish as they function as baits. If you do not know the exact location of the habitat of the silverfish and cannot treat it directly, baits are ideal.

    You can also you a residual aerosol like D-Force HPX with a crack and crevice tip, enabling you to get behind baseboards and corners of traveling paths of the silverfish. This type of aerosol is very helpful in bathrooms.




    The silverfish is a primitive wingless insect is about 1/2 in. long, named for the tiny silver scales on its body.
    They go through only a three stage life cycle called gradual metamorphosis, while many insects have a four stage life cycle (complete metamorphosis).
    The silverfish may lay eggs at any time during the year, and take 19-43 days to hatch.
    The life cycle for silverfish from egg to adult is three to four months.
    Silverfish prefer humid areas (75 to 97% humidity),like bathrooms and moderate temperatures (70o to 80o F).
    Silverfish are active at night or are active in dark places found throughout the structure.
    Silverfish can be a problem year round.

    Symptoms and Damage:

  • Silverfish are found in basements, kitchens, sinks, bathtubs, in bookcases, on closet shelves, behind baseboards, wallpaper, window or door frames, wall voids, and sub-floor areas.
    Attics are a favorite place for silverfish due to the abundant food sources due to the recycled blown in paper insulation and storage boxes.
    You may see them trapped in sinks and bathtubs because they enter
    seeking moisture and are unable to climb a slick vertical surface to escape.

    Firebrats will be found in similar but warmer areas.

  • Because silverfish and firebrats molt during their adult lives their cast skins may be a useful detection too.

  • Silverfish and firebrats diets are high in protein, sugar, or starch, including cereals,
    moist wheat flour, starch in book bindings, and paper on which there is glue or paste.

  • Firebrats and silverfish can damage book bindings, wallpaper, paper goods and dry foods. They may eat holes, irregular shaped in the wallpaper to get to the paste.
    Silverfish may bite very small holes in various fabrics, including cotton, linen, and silk, even though they cannot digest either linen or cotton.

    Firebrats will feed extensively on rayon, whereas silverfish usually damage it only slightly.

  • They may leave a yellowish stain on fabric.

  • Outside, they may be found in nest of insects, birds, mammals, and under tree bark and mulch
    They can be found in wood shingles or sidings on houses, they may enter the home from these.