Posted: 24/07/2012 at 14:42
A quick spray with insecticide (Provado bug killer) will keep them at bay. I was determined lily beetles weren't going to decimate my lilies this year...and they didn't, I've had a lovely display. They are all in pots on my patio, as they are easier to tend I find.
I use a little jar like the ones you get in hotels with jam in, and just knock the beetle into it, and always have one handy so you never have to let one get away!!