Plant Pathology Department


Date of this Version



Plant Disease Management Reports 10, FC100 (2016).


Copyright © 2016 The American Phytopathological Society. Used by permission.


The objective of the trial was to compare foliar fungicides with different modes of action for southern rust (SR) efficacy. Irrigated corn was grown based on Nebraska Extension irrigation recommendations at the South Central Ag Lab near Clay Center, NE. Soils were a silt loam with 6.7 pH and 1.8 % organic matter, and the previous crop was soybean. Reduced tillage was performed to the field prior to planting. Corn (DKC 65-79 RIB, tolerant to gray leaf spot (GLS)) was planted at approximately 34,000 seed/A on 26 May. Eight treatments were arranged in a randomized complete block design with six replications. . . . Fungicides applied at R2 significantly reduced southern rust severity compared to the nontreated check.