 Paul Bachi University of Kentucky Research and Education Center |
Leaves with spots starting out tan and turning gray then white. |
 Paul Bachi University of Kentucky Research and Education Center |
Close-up of leaf spots where in some spots the missing tissue in the center was where the spore-producing body of the fungus was located. |
 Paul Bachi University of Kentucky Research and Education Center |
Close-up of one spore-producing body ("acervulus") is seen in dark-field observation. |