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Unknown Insect #815992

Asked November 06, 2022, 4:18 PM EST

For about a week we have seen a huge number of these unknown insects accumulating all over the porch. They look like coffee grounds at a distance. Can you tell us what they are and how to prevent them in the future? Thank you!

Trumbull County Ohio

Expert Response

Hi there, can you send me a few more clear photos under some light? Many thanks.

Jennifer Andon Replied November 07, 2022, 1:08 PM EST

This work is supported in part by New Technologies for Ag Extension grant no. 2020-41595-30123 from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

Unknown Insect #815992

Expert Response

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