As corn planting looms, the dread of disease pressures may be occupying producers’ thoughts. Some of the pesky problems in these parts are relatively new to the headache list, including Tar Spot, ...

Agronomist Ryan Gentle shares scouting tips and spray timing strategies to control tar spot, southern rust and other corn ...

LAMAR, Mo. — This year, Missouri corn farmers may be dealing with a brand new issue, a disease slowly spreading north from Mexico. It may be an even bigger problem next year. Mother Nature took ...

Kansas State University plant pathologists and entomologists are reporting the first known case of corn stunt disease in Kansas, coming on the heels of reports in neighboring Oklahoma and Missouri.

Tar spot (top right) and southern rust (bottom photos) were hit-and-miss around the Corn Belt in 2025. That made scouting every field especially important. Both diseases often started low and worked ...

Iowa farmers' corn, soybean harvest in 2025 set new records, despite derecho, disease and near-record rainfall, USDA says.

It is important to continue to scout for diseases in both corn and soybeans. Recent rain events have increased favorable environmental conditions for the development of foliar diseases in both crops.

AMES, Iowa – A plant pathologist at Iowa State University is studying an emergent corn disease capable of reducing the yields of affected crops to near zero. Virtually unseen in the United States for ...

TOPEKA (KSNT) – Officials are monitoring the spread of a disease that is hurting corn production in Kansas. Tar spot appears as small, dark, raised spots on infected corn and can appear on the leaves, ...

Where there’s smoke, there’s fire – and smoke alarms are starting to go off to alert corn growers to the disease fire that’s already ignited in some parts of the Midwest: tar spot. Farm Journal Field ...

With already thin profit margins and increasingly uncertain farm labor and other input costs, precision agriculture ...