Slugs and a request for your comments

Jane McGary via pbs pbs@lists.pacificbulbsociety.net
Mon, 21 Aug 2023 09:53:13 PDT
Regarding slugs and hostas, when I first grew hostas in a very 
slug-ridden garden, they suffered a lot of predation. I didn't do 
anything to protect them. After about two years, however, the damage 
stopped. I've read that some plants, when damaged repeatedly by 
predators, respond by producing something (alkaloids?) in larger 
quantity. Could this be true of hostas that are exposed to slug 
predation? I now have a dozen or so hostas in my present garden, which 
has a modest number of slugs, and they remain undamaged. However, I dare 
not plant out Adonis or Glaucidium; the former remains a dream, and the 
latter in a big pot on a plant stand.

Jane McGary, Portland, Oregon, USA

On 8/20/2023 9:53 PM, Colin Simeons via pbs wrote:
> Hello Robin,
>
> Please see photo of my Hosta, one of the plants that are the most prone to slug and snail attack. They have no holes. They are in pots as I believe also yours are. All I do is put the pot on a support as you can see from the photo. But around the base on which the pot stands I wind two wires, about half way up the support, spaced about a centimetre apart. One is copper and the other is galvanized (zinc covered) wire. They must not touch each other.
> As Mr. Volta discovered many years ago when he invented the electric battery if you put zinc and coper in a solution, they will create a week electric current. When the slug or snail touches both wires with its wet slime, climbing towards your plants, they generate a week electric current that deters them. Once set up that is all you must do. On the photo you can see the brick support with the two wires at the bottom. The white tail is my cat not a Hosta. I hope that this helps. No poisons, no killings and all perfectly natural.ColinP.S. I'm trying to send it this way.Regards
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