Snails Deterant….on Hostas
Garlic granules, sprinkled on the soil helps deter snails and kill eggs in the soil (so I am told). Continue to sprinkle as they grow, it does no harm. Alternately you can crush real garlic bulbs and boil up in water. When water is cold, pour over the ground. This remedy has worked very well for me too, as I only grow Hostas in pots .Crushed eggshells work well too..
A tip courtesy of Frugal Gardening by About.com —brynali