Silverfish / Firebrates

Silverfish and firebrats are wingless, flat insects with two long, slender antennae on the front and three long slender "bristles" at the rear of a tapered, carrot-shaped body. They are 1/2 inch long when fully grown.

Residual insecticides applied as sprays, dusts, or baits can be used if conditions warrant. Treat cracks, crevices, wall voids and other likely hiding spots in the areas where the pests are noticed. Sprays need only be applied lightly and in localized areas of infestation. Boric acid dust can be used for firebrats and silverfish. Boric acid has the advantages of being very low in toxicity and very long lasting if applied in dry voids where it will remain undisturbed. However, dusts are more difficult to apply in a light, even coating, especially into cracks and crevices.