Farmers frequently find abnormal corn ears in fields affected by major stress such as drought, temperature extremes, disease injury, insect injury or misapplied chemicals. Often, these abnormalities adversely affect yield and grain quality. This poster describes symptoms and causes of ten types of abnormal corn ears. The purpose of the poster is to help corn growers and agricultural professionals diagnose and in some cases manage various ear disorders.
Click here to download a copy of this poster from Ohio State University.
Also, there is an accompanying web page that describes over 30 additional types of abnormal corn ear development and strategies for managing them. This information can be accessed at: