Copper tape

It's possible you already have slugs or at least slug eggs in the compost in the pots though. I'd use nematodes and the copper bands if you already have them. I think it does help where you don't have too many of them. In my garden they move in such numbers that there' always one ******* that crosses it, leaves a trail just to tease you and proceed to munch the whole plant.

I swear by nematodes.

I swear by nematodes also. I use them every year. I don’t use them in my polytunnel pots & definitely not in my chilli grow system which has a very balanced & constant nutrient being fed into the pots/chilli. Which is where my slug (s) are partying. Never had a problem before. But I did change part of my homemade venison of the chilli grow system which I think has made things easier for mr slug. Hence the asking about copper tape   .

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There was a program on telly about a young couple working a farm or smallholding and they were having problems with slugs so they put a copper band round their pots and they then fillimed ed a slug crawling over the top of the band so definitely didn't stop them

That’s why I was asking, didn’t know how well it work or if it worked at all. All I know is it’s not the cheapest thing to buy. I’d still rather try the tape, than using pellets. I’ll let the slugs have all my plants before I used those things.