Current tools make it impossible for U.S. corn growers to guarantee that their crop will contain acceptable levels of mycotoxins, such as aflatoxins and fumonisins. Corn ear rots occur when certain fungi infect corn. Several of those fungi produce mycotoxins, which can be harmful to livestock and humans if the contaminated grain is used in livestock feed or human food products.

A new mobile app developed by researchers from Purdue University and the University of Arkansas will make it easier for farmers to access information about corn ear rot and mycotoxins.

The app, available as a free download, helps users identify common ear rots and determine safe levels for the use of grain affected by mycotoxins. The app also has information on ear rot management and properly storing moldy grain. Resources include practical tips for ear rot management and in-depth information on mycotoxins and conditions that favor ear rot development.

An Android version of the app is available on the Cornmycotoxins website at An Apple OS version will be available by the end of the year.