Knowledgebase

Red cocoon #184768

Asked May 24, 2014, 12:21 AM EDT

I often find these red cocoon-like things in the soil when I'm gardening. I would like to know what they are, or rather what they will be become - a moth? Are they harmful to the garden?

Multnomah County Oregon

Expert Response

Thank you for attaching the image of the mystery red “cocoon.”  It’s the pupa of a moth.   

A pupa is the developmental stage between a caterpillar and the adult.  The adult doesn’t damage anything but, if it is a female, may lay more than numerous eggs which hatch as voracious caterpillars.  Depending on which kind of caterpillar it is, it eats vegetables and/or ornamental plants.



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