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Published online by Cambridge University Press: 28 July 2016
The application of aircraft to agriculture began in the 1920's; experiments in insecticide dispersal were made in Ohio in 1921 and a bulletin was issued by the U.S. Department of Agriculture on dusting cotton crops by means of Curtiss JN6H aeroplanes in 1924. Since then the idea has been developed, notably in countries of large area. In 1928, for example, crop dusting experiments were made in the United Kingdom but the results were not very encouraging because of the drift problem with comparatively small fields.