Corn diseases

Corn — 3 diseases with symptoms, causes and treatment.

• Common rust on corn — symptoms and treatment medium

  Reddish-brown oval pustules on both sides of corn leaves that darken to black? Common rust identification with pictures, causes and treatment options.

• Gray leaf spot on corn — symptoms and treatment medium

  Rectangular gray to tan lesions running parallel to the veins on corn leaves? Gray leaf spot identification with pictures, causes and treatment options.

• Northern leaf blight on corn — symptoms and treatment high

  Long cigar-shaped gray-green lesions on lower corn leaves, moving upward? Northern leaf blight identification with pictures, causes and treatment tips.