Kernels affected by black tip fungus to the extent that the resulting discoloration extends beyond the germ and continues around at least one cheek and into the crease, thus forming a "continuous band." All conditions must be met to be considered damage.
Illustration shows from left to right:
Kernel A: The minimum degree of discoloration and amount of coverage required on the germ.
Kernel B: The minimum degree of discoloration required in the "continuous band" that extends around the cheek. The width of the band is irrelevant.
Kernel C: The minimum degree of discoloration required to extend into the crease. The amount of discoloration (area of coverage) is immaterial.