Delve into the hidden world of soil pests with this 1960 documentary. The millions of living organisms that inhabit the earth beneath our feet. While some contribute to soil health, others pose a threat to cultivated crops by feasting on plant roots. This documentary shows various ways to use insecticides to combat the pests which were destroying a quarter of the world’s foodstuffs at that time. --- Shell’s surprising and captivating Historic Film Archive dates from 1934 and covers a rich mix of topics from technology, science and engineering to craftsmanship, motorsport and travelogue. The Shell Film Unit, responsible for the content, was a highly celebrated part of Britain’s Documentary Movement. Key figures from that movement were involved, including: Jack Beddington, Edgar Anstey, Arthur Elton, John Grierson, Kay Mander, Stuart Legg and Douglas Gordon. Its films were wide reaching, often screened in cinemas and through the non-theatric film distribution circuit, which bro...