What Causes Protein Poisoning and What to Do About It

An example of protein poisoning, courtesy of The Squirm Firm

A particularly devastating problem in a worm bin is protein poisoning, also called¬†“string of pearls” or sour crop, evidenced by a serious deformation of the earthworms as their intestines rupture, inevitably¬†killing the worm itself. So let’s check out what causes protein poisoning, what we can do to prevent it, and what we should do if we encounter it.

What Is Protein Poisoning?

While opinions vary on what is exactly happening with protein poisoning, one of the most succinct hypotheses of it comes from Trent Holmes, a member of a very informative Facebook Group dedicated to vermicomposting and vermiculture.

Trent writes: See More!