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Presentation Slides>Enhancing Low Volume Fungicide Applications on Corn with Additives
by
Dennis R. Gardisser
Contact: Dr. Dennis R. Gardisser e-mail: dgardisser@uaex.edu
Summary:
Energy needs have increased the corn acreage in the USA dramatically. Chemical manufacturers have developed fungicide labels with lower application rates, 2 GPA, to allow operators to cover more acres in a timely and efficient manner. This study was conducted to help determine what additives could be utilized as tank mix partners to enhance deposition efficiency within the corn canopy. Additives included crop oil concentrates, liquid fertilizers, non-ionic surfactants and other adjuvants. The study was conducted with fungicide applications being made in full size production fields in four locations in three states, Arkansas, Illinois, and Kansas. Aircraft models, nozzle and boom setups were unique in every location. The studies were fully replicated and designed so that statistical techniques could be utilized to fully explore what variable(s) are significant. Variables include such factors as: treatments or additive solutions, droplet spectrum, wind speed and direction, temperature, relative humidity, and crop yield. This report will include data from each state as well as a composite evaluation of corn fungicide application recommendations in general.
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Presentation Slides>
