You could contact your local Badger Trust for advice for starters. First thing is probably to establish whether it is badgers that are digging up your plants. Trail cams are reasonably priced on Amazon and using one would confirm which animal is to ‘blame.’ Alternatively, in our area, the local Badger Trust will lend a trail cam out for a week, free of charge.
I love using my trail cam anyway, it spots lots of wildlife behaviour and also keeps an eye on the chickens when I suspect fowl behaviour!
Can you make your garden more secure if they’re not welcome?
Agree with the idea of male urine. If you can sprinkle some of that at the point where they access the garden, that will help. The smell of male urine definitely deters them.
I am very opposed to the badger cull which is happening NOW and I have been part of a badger vaccination programme. It looks as though the government is seriously considering vaccination for the future, but for now many thousands more badgers are to be culled. And make no mistake, BOVINE TB as the name implies, is a disease of CATTLE which some badgers have had the misfortune to catch.
Brian May’s ‘Save me Trust’ has lots of useful information on the badger cull. Many people are opposed to it and there are lots of local protest groups.