Cornell Cooperative Extension just came out with a helpful bulletin about Amynthas worms. It includes images showing how to tell apart invasive European worms and the more damaging Amynthas worms, and advice on how to prevent their spread. Limited research on potential predators to hope control this pest shows that Eastern red centipedes and other arthropods may be the best bet.
And here’s a time-lapse video that shows what the worms, Latin name Amynthas agrestis, do to organic matter—gobble it up and leave behind a small volume of overly aggregated castings that dry out quickly. It’s not good.
See prior post for more info, and thanks to horticulturist Laura Wyeth for this additional info.