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Silverfish Often Establish Nuisance Infestations Within Homes, But They Can Damage Valuable Indoor Items As Well

Silverfish are bizarre looking and common insect pests in homes and buildings all over the world. Like their common name suggests, silverfish closely resemble fish, or shrimp-like crustaceans, and they grow to be a relatively sizable ¾ of an inch in body length. Silverfish are capable of living in homes and buildings throughout their life cycle, and females deposit their eggs within indoor cracks and crevices in walls and ledges. Larvae emerge from their eggs within a period of three weeks, and it takes 4 to 6 weeks before larvae develop into adults. Females lay around 100 eggs during their lifetime, and considering that eggs can develop into adults in less than two months, silverfish can become abundant within homes in a relatively short amount of time. Silverfish are particularly common in homes located in dry areas, making silverfish frequent home-invaders in Arizona. While silverfish are largely considered nuisance pests within homes, they can have an economic impact as well, due to their habit of chewing away at certain items, such as paper and stored food.

Silverfish have long lifespans for insects, as they live for a period of 6 to 8 years, and they are able to survive without food for over a year before succumbing to starvation. These pests can survive long periods within homes without being noticed by residents, as silverfish forage at night, and they are able to skitter along floors at fast speeds. However, silverfish require specific conditions in order to survive indoors, and they generally remain on the first floor of homes or in crawl spaces, cellars, and basements. Occasionally silverfish are found in large numbers in attics, but only under certain environmental conditions. These insects prefer to dwell in environments where the temperatures are between 70 and 80 degrees, and they are particularly sensitive to moisture, as they require 70 to 90 percent humidity levels in order to survive.

Silverfish are unpleasant to look at and they can become a nuisance in a home when large numbers congregate indoors, but silverfish are also in the habit of seeking out and consuming human food, even unopened packages of stored food items. Silverfish prefer to consume human foods that are rich in carbohydrates and protein, such as flower, dried meat, oatmeal and cereals. These pests also feed on just about any item containing paper, such as books, important documents, photo albums and cardboard boxes. Silverfish also seem to have a taste for glue, which makes the binding of books a preferred snack for the pests.

Have you ever found items in your home that you believe had been damaged by silverfish?

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