Disease Management in Corn

Row of corn

It should come as no surprise that the Cornhusker state's most economically important crop is corn. The USDA National Agricultural Statistics Service reported that 9.1 million acres of corn were planted in Nebraska in 2007 maintaining the state's rank as the 3rd leading corn producer in the nation. Nebraska leads the country in the availability of irrigated corn acreage which, among other advantages, provides Nebraska producers the ability to consistently produce large volumes of high quality corn grain used for livestock feed, food, ethanol, and export. Nebraska is among the nation's leaders for both cattle and ethanol production – both of which are major consumers of the state's corn crop. 92.9 million acres in the U.S., which was a 14% increase over 2006.

Predecessors of today's modern corn plant were first cultivated in Central America and later transported by European explores in the 16th century. Since then, corn has developed into the world's largest crop produced by volume and is produced in many countries as a food and feed source.

Recent increases in the value of the corn crop driven primarily by the increased demands from the rapidly growing fuel ethanol industry are the primary reasons for the corresponding increase in planted acreage nationwide, as well as in Nebraska. In 2007, approximately 38% of the state's corn grain was utilized by ethanol plants. The increase in acreage, especially the production of continuous corn in lieu of crop rotation, as well as changes in some other cropping practices are at least partially to blame for the increased incidence and severity of some important diseases of the crop.

UNL Extension Corn Disease Publications

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