Verdun, I am thinking that snail shells on canes are similar to heads on stakes, being a deterrent! Every little helps as they say! But in answer to your question, no it doesn't work
I do enjoy seeing little bees in the garden: I'm sure anything that looks so busy must be doing something useful. I wonder how they convince the snails to move out (I rarely see snail shells in the garden that are empty: I've tried talking to the frogs about this but they deny all knowledge).
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I sometimes use empty snail shells to top off my canes to stop me poking my eye out!
my lips are sealed
coo, you're still GG Hazel, how odd.
Verdun, I am thinking that snail shells on canes are similar to heads on stakes, being a deterrent! Every little helps as they say!
But in answer to your question, no it doesn't work 
You'll get us all in trouble Verdun!
I do enjoy seeing little bees in the garden: I'm sure anything that looks so busy must be doing something useful. I wonder how they convince the snails to move out (I rarely see snail shells in the garden that are empty: I've tried talking to the frogs about this but they deny all knowledge).