SEDL / STP / STP875-EB / STP32860S

Initial Studies on the Effects of Droplet Size and Electrostatics on Spray Deposition Efficiencies

Hall, FR
ProfessorHead, Laboratory for Pest Control Application Technology, The Ohio State University/Ohio Agricultural Research and Development Center, Wooster, OH

Reichard, DL
Agricultural Engineer, U.S. Department of Agriculture-ARS, Wooster, OH

Pages: 6    Published: Jan 1985

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Abstract

Equipment and instruments have been assembled and are being used to study the deposition of spray droplets on leaves. High-speed motion pictures show that a large portion of the droplets rebound from cabbage and lambsquarters leaves after the first impaction. To improve the deposition efficiency of sprays, we are continuing to study the effects of droplet size and velocity, electrostatic charge, and type and concentration of surfactant on the rebound of spray droplets from various types of leaf surfaces.