Copper tape is the James Bond gadget of slug prevention. When a slug’s slime touches copper, it creates a tiny electrical charge that feels like a mild shock to their nervous system. It won’t kill them, but it sends them back into the garden screaming (in slug language, which is just a silent scream of slime).
Wrap copper tape around your doorframes, pot rims, or even the legs of your patio furniture. It lasts for years, looks vaguely art deco, and makes you feel like a mad scientist every time a slug recoils from your doorstep. One note: don’t use it on concrete—it needs a dry surface to work. Wet copper is just expensive jewelry for slugs.
