In 2007, fungicide use for U.S. corn production exploded. Based on discussions amongst Extension Plant Pathologist, it was estimated that approximately 10% of U.S. corn acres (approximately 9 to 10 million acres), were sprayed with a foliar fungicide during the season. Current demand for foliar fungicides has focused on products of the strobilurin (pyraclostrobin, azoxystrobin or trifloxystrobin) and/or triazole (propiconazole) classes (Boerboom et al., 2007). Our goal and objective in this paper is to summarize what was learned in 2007 regarding the use of foliar fungicides on corn, as well as some of the factors that need to be considered before making the decision to apply a foliar fungicide.