On 09/06/18 10:25, Chris Hogg wrote:
assuming the key factor is some sort of
galvanic reaction between the copper and the slug, giving them a
tingle, or that they just don't like the taste of copper.

Hi Chris,

That's the main point - is it true or an old wive's tale?

If it's not true, they'll climb it (I saw a claim that under tests,
slugs will pretty much traverse most "horrible" substrates - but I don't
recall if copper was on the list.


The only real answer is to try it and see!


I guess - or plant the herbs in trays and transplant when they are big
enough to outgrow being eaten a bit (OK I'm lazy)