Aspergillus (Black Mold)
Aspergillus spp.
A serious health hazard. A. flavus produces aflatoxins (the most potent hepatocarcinogens known). Several species cause aspergillosis ("Mushroom Worker's Lung Disease"). Handle with respiratory protection.

Visual Identification
Black powdery colonies (A. niger), yellow-green (A. flavus), or gray-green (A. fumigatus). Powdery texture with distinct spore heads.
Not Treatable
Discard affected material immediately.
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