Iowa grain yields are predicted to be third highest in state history (USDA October estimate of 172 bu/acre); however, grain quality may be poor in areas.

A cool, long, growing season can result in high yields with high grain moistures and low test weights. High grain moisture paired with our fall conditions can also favor the development of fusarium fungi, which can produce several toxins harmful to people and livestock such as vomitoxin, zearalenone, and fumonisin. Livestock (swine, cattle, horses, and poultry) are susceptible to certain mycotoxins. Grain management and storage will be particularly important this year.

A three-part series of articles address issues related to storage management and practical steps to maintain grain quality:

• Corn Quality Issues in 2008 – Moisture and Test Weight
• Corn Quality Issues in 2008 – Field Molds
• Corn Quality Issues in 2008 – Storage Management

Roger Elmore
Lori Abendroth