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Frass is another better scientific word for insect poop.


Cockroach frass

  • German cockroach
  • Brown banded cockroaches
  • Asian cockroaches
Image of frass and larval casings caused by carpet beetle infestation of this carpet

Dermestid frass

  1. Carpet beetle
  2. Flour beetle

Online Resources

There are a lot of other gross images of frass on the Integrated Pest Management Working Group's website
Visit the Pest Odyssey website