Q. Invasive earthworms?

Recently I have noticed a change in my soil, I think it may be from the number of earthworms. They seem to be overpopulating the area, leaving no leaf litter. Are there invasive earthworms and if so, is there any natural control I can use?


This is a most interesting question.  Yes, there are species of invasive earthworms here in the U. S., mostly from Europe and Asia.  Back in 2007, Ira Flatow of NPR's Science Friday had an interview with Peter Groffman, senior scientist at the Institute of Ecosystem Studies in Millbrook, New York, about invasive earthworms. They are responsible for negative changes in local ecosystems. 

Here is a link to the interview

I think you'll find it most interesting.  Are any of your neighbors noticing changes?  I would check with the Chester County Agricultural Extension Service to see whether this is a problem in your area which has been reported or documented.  Here is how to reach that office:


601 Westtown Road, Suite 370
Government Services Center
West Chester, PA 19380-0990


Phone: 610-696-3500
Fax: 610-696-4831

  • Last Updated Jan 08, 2019
  • Views 22
  • Answered By Aska Gardener

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