DE will not treat a worm infestation. It is only useful in prevention.
Also, please note that tapeworms don't "come from" fleas. Tapeworm larvae are ingested by other small parasites (fleas, mites, lice etc) and then must be ingested accidentally by their host.
Also, please note that tapeworms don't "come from" fleas. Tapeworm larvae are ingested by other small parasites (fleas, mites, lice etc) and then must be ingested accidentally by their host.
