Update!

I only check these outdoor plants once a week, but I appear to have solved the slug problem.
I bought some stuff (whos name eludes me) that is nice to the environment, and it really works. It comes in a clear gel which one uses to describe circles around the plants.
Or if the plants are bigger it can be used to make a circle of gel around the actual stalk.

The slug problem was so bad, before I used the stuff, that 2 of my 2 week old plants had all their leaves eaten off and then died.
I used the gel and when I checked a week later there had been no further slug predations.

Success! And the wildlife didn't suffer!

Brilliant.

doris

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"The Dutchman told me tales of long-ago Lebanese cannabis cooperatives, He claimed that during gathering adventures in remote areas, beautiful girls, "selected because they had lush pubic hair," meandered through the cannabis fields on summer afternoons, grinding their pudenda against sticky resinous flowers.The girls were soon covered in resin, which were removed from their skin and hair using specially-shaped tools, and smoked immediately."-http://www.cannabisculture.com/articles/2789.html