@cleanfreak You put sugared water in the little lip Carole & the wasp goes in but can't get out again. I haven't used this yet as a little early ( & cold ) for wasps!
Lovely that - haven't seen many wasps - too wet I suspect! I've been buying loads of lights and things for the garden for Rachel's party - I'll test them out if the rain ever lets up.
I have one of these! They are so pretty. I hung it one year, and did not catch any wasps. I forgot to hang it this year. They look so pretty with their bright glass. Mine is blue....