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How do you mouse proof a cold frame! On checkingmy cold frame last night I found that the mice had found a way in - yet again - and eaten all my germinating sweetcorn. They were obviously very hungry as they also turfed up my calabrese seedlings and bit through a number of courgette stems!

This is the third time this year - how do others keep them out. Please help. :'(

Rat poison. Anything they're likely to go for needs to go on the top shelf in the mini-greenhouses (I found that out the hard way) and poison soon disposes of them.

I use the old "cartoon style" traps got thirty+ over the winter!
:o