"Mike" wrote in
:

Copper tape around the edge of the bowl stopped the problem
completely and immediately.

It is a very cheap and rough larch lap panel, so I wonder if the
copper tape will adhere for any length on time - got to be worth a try
though !

Maybe cut a bit of copper pipe in half, flatten, and nail to the post then?

I don't think the 'tape' element is important!

Victoria

--
gardening on a north-facing hill
in South-East Cornwall
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