Suggestions to Deter Banana Slugs

Suggestions to Deter Banana Slugs
"With all this talk of tomato plants and gophers, I was wondering what folks do to deter banana slugs? I have some newly planted hostas and a few tall purple flowering plants. The banana slugs are going to town! These are planted in a raised bed. I read somewhere that you can put a copper strip along the edge of the planter and slugs won't cross it (something about being electrocuted)?? Would this work with a copper pipe around the top edge of the planter box? From Kathi Lohmann (message #7952)
Response #1
" They can't cross fireplace ashes if you put enough down. No traction." From David LeCount (message #7956)
Response #2
" Copper barriers are claimed to work, but I have had mixed results. It may be that you need to sand the oxidation off regularly." From David Ehrhardt (message #7958)
Response #3
" I have used the copper strip and it seems to work pretty well. We also put little cups of cheap beer in the raised beds to collect slugs that were in already. I am not sure what that reasoning was (maybe to have a good excuse to get rid of some cheap beer that was left here from a party?)…As for using copper pipe, they may be able to get around it or under it. The stripping is about 3 inches or 4 inches wide, and can be stapled to the walls of the bed (if made of wood) with no room to spare for them to slither through. I don't think the slugs ever got anywhere near the plants in those beds..."From Karen Shaff (message #7957)