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Tiny caterpillars everywhere #878741

Asked July 25, 2024, 1:27 PM EDT

These small caterpillars are covering the foundation walls of my house. They are 3/4” x 1” and are somewhat hairy and have two antenne. Could they be a problem and what to do about it. We line in a very wooded are. Thank you

Sussex County Delaware

Expert Response

Hello,

Those are not caterpillars and are millipedes.  They are decomposers that feed on decaying plant matter or other organic matter in or on the soil.  They are typically  found under stones, pieces of wood or possibly something that has rested on the ground for some time.  They do not damage anything and only feed on things which helps recycle things back into the environment.  No treatment needed.

An Ask Extension Expert Replied July 25, 2024, 3:58 PM EDT

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