Trap them little critters good: Trapawasp.co.uk. Seems like the logical solution. Less fun than chopping them in half with a sharp knife whilst airborn like my friend Harry Deans or indeed decapitating them and watching their bodies (and stings) live on in spasm. But don’t forget: Wasps do a great deal of help in the garden by consuming large numbers of caterpillars and other plant pests. Weigh up the pros and cons: avoid a stinging or help the plants.