Maize screening trial all planted the same time. Row on left is a very susceptible commercial hybrid. Plants are severely stunted and chlorotic but no red or purple pigment develops on this genotype. Many plants are dead, others are dying, symptoms are on all leaves from the top to the bottom. The middle row is moderately susceptible.
Plants show some stunting, purple leaf tips and margins and numerous chlorotic spots.
Symptoms are most severe on lower leaves and progressively milder up the plant, top leaves look relatively healthy. The right row is a resistant hybrid with few or no symptoms on any leaves. Closeup view of a young plant showing characteristic chlorotic spots. Spots on lower leave are scattered, becoming more frequent on upper leaves until they fuse to produce a general chlorosis. Note particularly that the spots tend to form along vascular bundles in linear arrays.