You can't. You can only pick them off and squish them daily. There are some sprays but they don't work for me.

Yup...only one way to deter a lily beetle...don't grow lilies. Sorry :((

...oops, forgot to say....you could move north...we haven't got them....yet! ;)

Karen - I can send some - I still have your address! :-)

Aaaaaargh!

thanks gardeners. squish em i will then. shame they are pretty creatures but lilies are prettier. x