Sharpen a Slug's Playground
Slugs are stubborn, slimy garden-munchers that especially favor greens and the tender leaves of young plants, and few remedies control them completely. But to help give your garden a fighting chance against them, try rinsing, drying and crushing up eggshells and then spreading them thickly around vulnerable plants. Mound them up against the stalks, too.
The sharp edges of the shells can apparently make life difficult for the slippery little slugs. The eggshells also act as fantastic natural fertilizer for your garden soil, so when you put your garden to bed at the end of the growing season, just turn the all-natural eggshell mulch directly into the dirt.