Copper tape

Definitely not Zigs, I had disinfected the feeder and put fresh food in so this little blighter obviously likes the odd thrill

 

Has anyone tried the nematodes? A friend suggested them to me. Thank you Yvonne, I was going to buy some copper tape even though I was horrified by the cost of it. You've saved me a few quid!

Edited to add, on the plus side, your feeder is now a work of art :-D

 

The copper tape definitely works on my hosta pots.