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| | Ergot--a Global Disease Threat to Sorghum |
 | | During wet or humid periods at relative humidities above 90%, the ergot fungus produces secondary condia on the surface of the honeydew which appear as a white scum or powdery growth. |
 | | This white growth covers the surface of the honeydew wherever it is present including the particle, leaves, and soil. |
 | | Primary infection in the field is possibly established by ascospores from germinating sclerotia, sphacelial conidia, and conidia from collateral grass weed hosts (e.g., Cenchrus spp, Panicum spp, Ischaemum pilosum, Dicanthium spp), wild sorghums, volunteer plants, and infected panicle debris in soil. |
| sanangelo.tamu.edu /agronomy/sorghum/sicna.htm (1300 words) |
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