Improving Canopy Coverage by Using Deposition Aids in Low Volume Fungicide Applications in Corn
Robert E. Wolf, Scott Bretthauer
Contact: Dr. Bob Wolf E-mail: email@example.com
Fungicide application to corn acreage in the USA has dramatically increased. Chemical manufacturers have developed fungicide labels with lower application rates to allow operators to cover more acres in a timely and efficient manner. This study was conducted to continue the evaluation of the influence of deposition aids to improve the coverage of the fungicide into 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 a full size production field in Illinois. The study was 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 deposition aids, droplet spectrum, wind speed and direction, temperature, relative humidity, and crop yield. This report will include data to help the industry further evaluate the benefits of certain deposition aids used with corn fungicide applications and assist in making aerial application recommendations in general.
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