Infested corn debris

High relative humidty
favors GLS development

Early lesions.

Close-up view
of early lesions.

Close-up view of older lesions.

GLS development on a susceptible corn hybrid.

Severe GLS development

Close-up view
of severe development

An example of
differential susceptibility.

Severe stalk lodging

GLS lesion type: fleck response on Pa875

GLS lesion type: chlorotic lesions on inbred NC262A

GLS lesion type:chlorotic
on inbred NC250A

GLS lesion type: necrotic
on inbred B73

GLS  susceptible-type lesions