Stalk Rot and Kernel Rot (fungus - Fusarium spp.): Fusarium fungi survive on corn residue in soil and on seed. Stalk rot is associated with moisture stress and over-fertilization. Cutting the stalk will reveal a pink discoloration of the pith. Infected plants are stunted and delayed in maturity. During periods of high wind plants often lodge. The Gibberella stage of the fungus will infect kernels causing them to be pink in color. Infected ears have a strong odor and should not be used as food or feed. Control stalk rots by rotating with non-related crops, planting in well drained soils, and by using treated seed. Avoid excess nitrogen and avoid root pruning when cultivating and injecting fertilizer.
