Most gardeners know that coffee grinds are good for garden soil. I recently read that ground egg shells deter slugs/snails and it’s also good for the soil. So I have taken to saving my egg shells in an empty tofu container by the sink. After reaching critical mass, they get ground up using a mortar and pestle. Then they get sprinkled into the gyopo garden.

July 23, 2008 at 3:31 am
not sure if you knew this, but you can also rid slugs naturally with beer.
Taking a low, wide dish and pouring some good old lager in, the slugs are attracted to the smell (yeast) go in for a drink, and get too drunk to find their way out, i.e drowning.