Posted: 12/05/2016 at 08:28
Sadly slug pellets containing metaldehyde have been proved to be harmful to wildlife . Pellets containing the active ingredient Ferric phosphate are thought to be much less harmful and are the only ones I use.
I also use grit around emerging hostas and have used home made garlic spray if a particular hosta is badly attacked.
Nowadays for borders I tend to go for thick leaved hostas which slugs find less edible and use copper tape around pots containing other hostas.
The results are perfectly acceptable (I'm not a perfectionist ;-) )
If slugs were proving a real problem I'd use nematodes