Pro Patria Films Limited Present - Secrets of Nature - The Aphis - Produced by British Instructional Films.
Nature film showing the life of the aphid / aphis. Various C/U and microphotography shots of aphids. Looks like the work of nature film genius Percy Smith. The film follows the life cycle...
Farmers spray loads of chemicals over trees to control insects.
Scottish agriculture experts tackle the problem of bracken taking over the countryside.
Fight against invasion of locusts across Moroccan countryside.
A special train sprays weedkiller along the tracks as it goes. Nottingham.
Potato crops sprayed in fight against Colorado beetle.
Dutch people help out in the hunt for the Colorado beetle.
Women, children and men being deloused.
Chinese soldiers being sprayed with DDT powder.
Item showing aeroplane spraying crops.