Slugs are the top problem in most gardens and it is always difficult to stay ahead of their attacks. Certain plants, like Hostas, are always a preferred target so, if you are going to protect anything, start with them. A barrier of gravel, crushed eggshells or, as here, wool pellets, around the plant acts as a good deterrent.
Wool pellets, Scoop
Apply the wool pellets in a complete circle around the plant to be protected. These pellets are natural and harmless to pets and children.
Water them well, as they have been compressed.
The fibres fluff up and expand to create a collar.
Any slug that tries to cross the barrier gets caught on the millions of tiny hooks on the wool fibres. It can be removed by hand or left for the birds to take.
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How to Make a Bird Feeder
How to Protect a Climber