Disease Cycle
Infection is seed-borne within the seed, the fungus penetrating the endosperm while the grain is being formed. Infected seeds give rise to systemically infected plants. The mycelium advances through the host tissue and becomes established behind the growing point.
The spores are not readily blown or washed away by wind or rain. At harvest, spore masses are broken up, scattering spores on grain. Frequently, masses of spores remain intact and appear in harvested grain. The fungus overwinters as teliospores on seed or in soil.
Read more about this topic: Covered Smut (barley)
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