Silverfish

 

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Relevant Background: "The silverfish (Lepisma saccharinum) is a species of small, primitive,[1] wingless insect in the order Zygentoma (formerly Thysanura). Its common name derives from the insect's silvery light grey colour, combined with the fish-like appearance of its movements. The scientific name (L. saccharinum) indicates that the silverfish's diet consists of carbohydrates such as sugar or starches. While the common name silverfish is used throughout the global literature to refer to various species of Zygentoma, the Entomological Society of America restricts use of the term solely for Lepisma saccharinum....Silverfish are able to digest cellulose (a component of paper) by themselves, thanks to the cellulase produced by their midgut.[10] They consume matter that contains polysaccharides, such as starches and dextrin in adhesives.[5] These include book bindings, carpet, clothing, coffee, dandruff, glue, hair, some paints, paper, photos, plaster, and sugar. They will damage wallpaper in order to consume the paste.[20] Silverfish can also cause damage to tapestries. Other substances they may eat include cotton, dead insects, linen, silk, leftover crumbs, or even their own exuviae (moulted exoskeleton). During famine, a silverfish may even consume leather and synthetic fabrics. Silverfish can live for a year or more without eating if water is available.[5][21]

Silverfish are considered household pests, due to their consumption and destruction of property.[17] However, although they are responsible for the contamination of food and other types of damage, they do not transmit disease.[5][22] House centipedes and spiders such as the spitting spider Scytodes thoracica are known to be predators of silverfish.[23][24][25]

The essential oil of the Japanese cedar Cryptomeria japonica has been investigated as a repellent and insecticide against L. saccharinum, with promising results: filter paper impregnated with oil repelled 80% of silverfish at a gas concentration of 0.01 mg/cm3, and an exposure of 0.16 mg/cm3 for 10 hours caused a 100% mortality rate.." (Silverfish - Wikipedia)

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Relevant Material: "Silverfish primarily damage paper, textiles (especially starched ones), book bindings, wallpaper, and other starchy or cellulose-rich household items, but global statistical data on the total economic damage is not readily available. While silverfish infestations can be costly to homes and historical collections, these pests are considered a worldwide nuisance rather than a major economic threat on a global scale, with specific figures for total damage difficult to compile due to their hidden nature and the localized impact of their feeding habits.

 
What Silverfish Damage
  • Paper and Books:
    Silverfish consume starch and cellulose found in paper, which can lead to holes and stains in books, magazines, newspapers, and wallpaper, especially in areas with glue. 
  • Textiles:
    They also damage starched fabrics like cotton and linen, as well as silk and other natural fibers, often found in clothing, curtains, and other furnishings. 
  • Other Materials:
    Their diet can extend to other starchy items, such as food crumbs, some paints, plaster, and even hair or dandruff found in the home. 
Why Global Statistics Are Scarce
  • Hidden Pests:
    Silverfish are nocturnal and often hide in dark, damp, undisturbed areas like basements, attics, and wall voids, making infestations grow unseen over long periods. 
  • Localized Impact:
    Their feeding damage is usually localized to individual items rather than widespread structural damage, making it hard to quantify on a global level. 
  • Nuisance Pests:
    They are considered more of a nuisance pest, a persistent problem for homeowners, librarians, and museum curators, rather than a major economic threat with large-scale data reporting. 
How to Prevent and Control Silverfish
  • Reduce Humidity:
    The most effective control is to lower humidity levels in your home, as silverfish thrive in damp environments. 
  • Eliminate Food Sources:
    Starch, sugar, and glue are their primary food sources, so regular cleaning and proper storage of books, papers, and textiles can help. 
  • Professional Help:
    For significant infestations, contacting a pest control professional is recommended. .." (Google)
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  • Relevant Material: "Silverfish do bite into their food sources, though. Because their jaws are weak, it’s really more like a long drag or scrape. That’s where silverfish can damage your house. They can scrape their teeth against things like wallpaper, fabric, books, and other paper items. They tend to leave a yellow residue (fecal matter) in their wake.

    Because silverfish are nocturnal and actually rather elusive, seeing these yellow markings or damage on paper or fabric in your house is usually the first sign that you have these insects.

    Silverfish do leave behind their skin as they age — a process known as molting. These skins can collect and attract dust, which can trigger allergic reactions in some people.

    An older 2008 laboratory study found that silverfish may cause allergic-type breathing problems in people who were allergic to common indoor allergens, but there aren’t enough additional studies to confirm this.

    Silverfish aren’t known to carry pathogens or other potentially damaging diseases.

    Do silverfish crawl in ears?

    This question stems from a rather unpleasant rumor that silverfish crawl into your ear and eat your brains or lay eggs in your ear canal.

    Good news: They don’t do any of this. Silverfish are essentially very shy to humans and are really trying to avoid you at all costs. They don’t eat blood and are more interested in your paper products than anything on your body.

    Are silverfish harmful to pets?

    Just as they can’t bite humans, silverfish can’t bite pets. They won’t poison your pet if they eat them. But eating silverfish could give your dog or cat an upset stomach, especially if you have an influx of them.

    Silverfish eat cellulose. That’s the starchy sugar present in paper products as well as dead skin cells like dandruff. They’re attracted to damp, dark spaces with plenty of cellulose to eat.

    Even though they like to eat, silverfish can go long periods without eating. They also reproduce quickly and can live for several years. This means a few silverfish can quickly turn into an infestation of silverfish that can damage your home..." (Do Silverfish Bite? Facts, Myths, and How to Get Rid of Them)

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Relevant Insurance Coverage: Note: Many if not all Insurance companies do not provide Insurance coverage against damage caused by insects or pests

a) Travel & Health 

b) Life Insurance 

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