Following up to "PammyT" :

Wasps are back on my hit list and I don't feel a twinge of
guilt. I'll be swatting, squishing and drowning the nasty stripey creechers
at every opportunity.

They don't *just* eat bees, you know. They eat more other garden-pesty
things.

"German wasps hunt and consume arthropods, including flies, mosquitoes and
caterpillars; wasp larvae require a protein rich diet of insects and
spiders"
--
Tim C.