Northern corn leaf blight
![Northern corn leaf blight on corn](/Images/godic/202501/30/Northern_corn_leaf_blight1403.JPG")
![Sporulation on corn leaf](/Images/godic/202501/30/Sporulation_on_leaf1403.JPG")
![Disease cycle of northern corn leaf blight](/Images/godic/202501/30/NCLB_disease_cycle1403.JPG")
Northern corn leaf blight (NCLB) is a foliar disease of corn (maize) caused by Exserohilum turcicum, the anamorph of the ascomycete Setosphaeria turcica. With its characteristic cigar-shaped lesions, this disease can cause significant yield loss in susceptible corn hybrids.