- At flowering, the fungus grows through the floral tissue and forms masses of spores in place of healthy seed.
- Bunt fungi survive as resting spores on contaminated seed.
- Grain mold fungi also produce spores capable of aerial dispersal in the field as well as within a grain storage bin.
- Many questions concerning toxicity and allergenicity have been raised about corn contaminated with the spores of this fungus.
- It reproduces prolifically and produces spores at all stages of its life.