boldyloxx
Hi, earlier -- a few months ago on this forum, some folks tried diatomaceoius earth. I recall some having success with it. I know that it is an effective dewormer- and often used for animals and livestock deworming.
I think there are two types-- one you can ingest, and one that is not food grade.
Do a google search on it- and let us know what you find. Also- you may want to check some of the old pages on this forum-- and look for "diatomaceious earth" on some of the thread subject headings.
Good luck!
Boldylocks