Added to that, spraying tall trees is a much more complicated and unhealthy business than treating low-growing fruit and vegetables.

ECONOMIST: Biological pest control

As a child growing up in Langham I knew of this odd 25-foot tall, 40-foot wide Christmas pudding of a building on the edge of the airfield where my father, somewhat unsuccessfully, first tried to teach me to drive.

BBC: Museum proposed at World War II site of RAF Langham