High Quality Content by WIKIPEDIA articles! Aspergillus flavus is a fungal pathogen, which causes post-harvest disease in cereal grains and legumes. Post-harvest rot typically develops during harvest, storage, and/or transit. A. flavus infections can occur while hosts are still in the field (pre-harvest), but often show no symptoms (dormancy) until post-harvest storage and/or transport. In addition to causing pre-harvest and post-harvest infections, many strains produce significant quantities of toxic compounds known as mycotoxins, which when consumed are toxic to mammals . A. flavus is also an opportunistic human and animal pathogen causing aspergillosis in immunocompromised individuals .