Answer: Silver fish can be treated with boric acid or diatomaceous earth used as a crack and crevice dust indoors. Read and follow the label directions. You would also want to reduce humidity or dampness in areas where they hide. They are attracted to and feed on mold, so you would also want to eliminate mold in areas where you are finding silverfish. For additional control strategies, you might want to consult with your local county extension. If a chemical control is needed, they will have the most up to date information on what to use and how/when is best to apply it for maximum results.
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