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Fungicide Misapplication

Foliar fungicide applications to corn continue to grow in popularity. According to fungicide manufacturers, crop injury associated with fungicide applications has been reported in a limited number of cases. The most frequent damage was partial to completely arrested cob development. Properly timing a fungicide application is critical. Exactly how much crop damage can occur if a fungicide is applied at the incorrect growth stage? This goof demonstration set out to measure the potential damage.