Eyespot symptoms in corn
Eyespot causes small, round spots with a brown border surrounded by a a yellow halo.
This image appears in the following articles:Controlling leaf diseases in seed corn (June 1998)
Keep an eye out for eyespot (July 1998)
Mid-season corn leaf diseases (July 1999)
Early-season leaf diseases on corn (May 2002)
Holcus leaf spot being found on corn (July 2004)