I have several hibernating masses of ladybirds, about 90% of them are harlequin ladybirds. Over the last few days in the garden I've also come across several harlequin ladybirds and just 1 native 7 spot ladybird.
A thought occurred that maybe I should be destroying the harlequin ladybird to help our native species. As a bit of a softie I don't think I actually could (would be quilt ridden!!) but wondered what people did with their's?