The two bu/acre Iowa corn yield reduction (from the previous 2018 report) shown in the February 9 crop report demonstrated the impact of late-season wet weather. Corn quality and potential food safety issues are also determined late in the growing season. According to data recently completed by the Iowa Department of Agriculture and Land Stewardship (IDALS), levels of the mycotoxins deoxynivalenol (also known as vomitoxin) and zearalenone are elevated in this year’s Iowa corn crop. Vomitoxin primarily affects digestion in swine, while zearalenone has negative effects on reproduction in most monogastric animals. Dogs, cats, and gilts are most sensitive to zearalenone.
Iowa State University
Hurburgh, Charles R.; Bowers, Erin; Robertson, Alison; and Ross, Jason, "Toxin Levels in 2018 Corn" (2019). Integrated Crop Management News. 2510.
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