When the hosta "eyes" appear, I mix one part household ammonia with ten parts of water and pour this mixture around the eyes close to the plant. It doesn't hurt the plants, but it does dissolve the eggs that are laid around the roots. It has reduced the slug population noticeably. I also pour the ammonia solution directly on slugs that I see on the deck. Dissolves them right away.
I love my hosta plants. They grow like crazy in my shade garden and looks so beautiful too. I’m always getting comments on how beautiful they are. But they can get a little big and need to be divided. If you have a hosta or two that needs to be scaled down here’s a great tutorial on how to divide a hosta plant. You can bless a neighbor or friend with the extra plants or add more to your own garden.
The Best homemade solution for Hostas Care that will stop bugs and slugs from eating your Hostas. http://www.mamasblogcentral.org/hostas-care/