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Spray losses during application of pesticides to horticultural crops must be decreased to reduce the toxic load on the environment and to restrict the overkill of horticulturally important insects. Integrated control programs now being tested in commercial apple and peach orchards depend on precisely timed pesticide applications for success (8). It is accepted that to control spray requires some means of limiting the size of droplets emitted, that droplets below 80 um drift excessively, and that small aqueous droplets evaporate rapidly under normal day-time conditions, (1, 6, 9, 10, 11, 12, 13). The aim, therefore, was to develop a practical field atomization-emission device which was simple, economical to produce, and which would restrict the size of droplets emitted to bounds considered optimum for both application efficiency and efficacy of deposit.
design of a simple device for limiting the width of the droplet size spectrum from a hydraulic fan nozzle
Menzies, D.R. 1975. DESIGN OF A SIMPLE DEVICE FOR LIMITING THE WIDTH OF THE DROPLET SIZE SPECTRUM FROM A HYDRAULIC FAN NOZZLE. Canadian Agricultural Engineering 17(1):25-27.
25 - 27