Very true keberoxu! We live in hope that we'll win a few matches against the varmints!
Steve, we seem to have lots of cabbage white butterflies too. And as you say, the other types (peacock, tortoiseshell etc ) have vanished.
What we do also have in large numbers now is wasps. I don't myself mind them, but some of my neighbours are allergic to their stings.
I keep the two bird baths filled up with clean water, and the wasps, flies,and many other insects drink constantly from them, as well as the birds.
I feel I should put a flat tray of water out in the garden to help hedgehogs etc. (and probably rats, mice and so on, none of which bother me either)
Water? Water? What is this 'Water' eh? Soon we'll have forgotten what water is, unless it bloomin' rains soon.