Amongst many things that are supposed to deter slugs, a strand of copper wire allegedly gives them an electric shock when they try to cross it. I was chatting to Dad yesterday and he mentioned this, suggesting that two strands might be necessary to make a circuit. Slugs are currently munching their way through our strawberries and the pots are quite hard to defend by other methods, so I thought this would be worth a go.
I took a bundle of electrical wire from the old washing machine and stripped a length, which turned out to be stranded. That should be ideal.
I took the strands out to the patio and started stringing them round the strawberry pots when I thought that it might be an idea to test the theory first. It shouldn't be too difficult - I'd just need to find a slug.
It took me about ten seconds to find this big boy hiding in some leaves...
... but he was sleepy and couldn't be persuaded to go anywhere. It didn't take much longer to find this little guy...
... who was much more sprightly. I put him on the patio in a circle of copper wire (several strands) and waited.
The first encounter with the wire was encouraging. When his antenna touched it, he withdrew and turned away.
After a couple of attempts, though, he braced himself and slid straight across.
Test result: Copper wire completely ineffective as a slug deterrent, at least against this slug.
About this blog
- Wales, United Kingdom
- In autumn 2010, my husband Ian and I both quit our jobs, sold our house and left the flatlands of the east for the mountains of Wales. Our goal is to create a more self-sufficient lifestyle in a place we actually like living. Whilst Ian will continue to earn some money as a freelancer, my part of the project is to reduce how much we spend by growing and making as much of what we need as possible. The purpose of this blog is to keep friends updated with how the grand project is progressing, but all are welcome here. If you're not a friend already, well perhaps you might become one.