I live next to the river and am plagued with slugs, hairy one black, ones brown ones, some the size of pythons. At night they decimate my plants or climbs up the French windows. I also have hundreds of frogs/toads of all sizes, slow worms but the slugs are longer than they are, the odd grass snake and about 15 types of birds who I feed and who are currently eating me out of house and home!
I am desperate to get rid of the revolting things but do not wish to kill of the rest of the wild life in my garden. People talk about beer traps but I'd need millions! Any further suggestions.