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Summary: The introduction of future herbicide-tolerant crops will require growers to utilize drift-reduction nozzles that apply pesticide solution in very coarse to ultra coarse droplets. Historically, fungicides have been recommended to be applied in smaller droplets which provide greater coverage. This presentation will help consultants and producers understand the effects of nozzle selection on foliar disease management in soybean. Specifically, viewers will gain an overview of nozzle selection and generation of droplet spectra, the effects of droplet size on foliar fungicide efficacy and residual, and spray deposition of a foliar fungicide from varying droplet spectra in a commercial application setting. At the conclusion of this presentation, consultants and producers show feel comfortable in understand factors to consider when selecting spray nozzles to apply fungicide solutions in soybean.
United Soybean Board (USB) farmer-leaders develop and maintain partnerships with U.S. land grant universities and U.S. ag-focused research organizations such as the Plant Management Network to increase the transfer of checkoff-funded applied and practical production research information to U.S. soybean farmers. USB neither recommends nor discourages the implementation of any advice contained herein, and is not liable for the use or misuse of the information provided.