The electrical method works but it kills the worms... The best method IMO is finding someone who is doing pool repair and has to drain their pool onto their lawn... my neighbour did it once and I had almost a kilo of them
I was thinking some sort of vibrating rod, rather than an actual shock to the ground. Maybe like one of those industrial back-massagers with a voatage controller to mimic the frequency those guys with their rasps.
On a side note, did you try this? I noticed you've got some new worms for your bin! lol
I went out last night worm "hunting" because it rained... It's what sparked my curiosity this morning about the whole thing. I went out this morning hunting for a staub but I can't find a good metal piece... I'm going to try this real soon and I'll post it
I bet this could be mimicked with electronics. Those guys could make some serious cash if they took half the labor out of their business model.