Head smut—Sphacelotheca reiliana
Head smut is characterized by large smut galls that replace ears or tassels. The galls are first covered
by fragile, creamy white membranes that eventually rupture to release masses of dark brown spores. Within
the masses of spores are more or less intact, threadlike strands of vascular bundles, giving the spore
masses a stringy appearance.
Identification
SolutionsSpores from the head smut fungus survive in the soil for long periods. The fungus attacks seedlings and
becomes systemic, invading undifferentiated floral tissues. Infection level is related to the concentration
of spores in the soil. Resistant varieties may be available. |
Abnormal leafy tassels of head smut |
Galling
on corn ears |
|
