badger damage

Hello everyone I'm new to this site and fairly new to allotment holding.  I started on my small plot in February.  It's going well but I do have a problem with badgers.  My carrots were decimated the other night.  Any advice?

The carrots that were demolished were atually on my garden at home.  Last year the badgers deomolished all my sweet corn just as it was reaching maturity so this year I have grown the corn on my allotment and put some wire fencing around it.  So far so good but I forgot about badgers likeing carrots I suppose next year I will have to fence in my whole veg plot at home.  The badgers also leave holes in the ground where they have been digging for veg and also their visiting card- a huge pile, again, in a neat little hole.  I'm hoping they don't like parsnips as it is the first time I have ever grown them and they are very small at the mo.