Evidence of molds is typical under normal growing conditions, however, hail damaged, drought and/or damp growing conditions contribute to excess molds on maturing corn plants, according to Dr. Terry Mader, University of Nebraska Extension Beef Specialist. Toxins produced by mold are called mycotoxins. Aflatoxins and fusarium toxins, such as zearalenone and vomitoxin are mycotoxins of most concern ...