Head Mold
Various species of fungi (see table 4)
Symptoms: Pink, white, brown, or grey fungal growth
on grain. Apparently asymptomatic seed may be contaminated.
Pathogen and disease characteristics: Many pathogens
cause preharvest grain molds. Grain molds on pearl millet tend
to be more severe with humid conditions during grain fill (Wilson et al. 1993, Ingle
and Raut 1994) and if grain harvest is delayed (Wilson
et al. 1995). Several fungi cause grain molds, and these differ
by the region of cultivation, crop management, environmental conditions
prior to harvest, and storage conditions.
Host range: See information in this text for specific
pathogens listed in table 4.
Geographic distribution: See information in this text
for specific pathogens listed in table 4.
Nomenclature discrepancies: See information in this
text for specific pathogens listed in table
4.
Seed transmission: These fungi are seedborne by definition.
Not all are pathogenic to seedlings.
Primary citations: See table 4.
United States
Department of Agriculture
Agricultural
Research Service
The material on this page is in the public
domain.
Original posting: June 5, 1999.
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