Frank Booth Snr wrote:

If you want to deter slugs from getting to your clematis, just
sprinkle plenty of sharp grit around the the base of the plant to form
a barrier. Slugs hate crawling over anything sharp or rough-edged.


I think this idea of deterring slugs and snails with grit or rough edged
stones / egg shells etc is over-rated. Either that or the little
critters here in France are mean and hard. S.A.S. Slugs. They have no
problems crossing ten feet of sharp granite chippings on my patio then
scaling a wooden table to reach some juicy seedlings in a seed tray.

I think slugs don't "hate" such things so much as mildly dislike them,
and may go around such obstacles - unless they sense something desirable
on the other side to reach.

--
David in Normandy.
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