A newly identified disease affecting corn and sorghum can closely resemble iron deficiency, potentially leading farmers to apply costly nutrient treatments that do not address the underlying problem.

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, ...

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.

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 ...

On March 4, Dean Malvick, UMN Extension corn and soybean plant pathologist and Ryan Miller, UMN Extension crops educator joined UMN Extension crops educator Liz Stahl to talk about whether ...

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 ...

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 ...

High levels of fungal disease are threatening corn crops across Iowa and the rest of the Midwest. The main diseases, southern rust and tar spot, arrived earlier and spread due to wet conditions. These ...

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, ...

Recent rains and increased humidity across Indiana have increased the risk for foliar diseases to develop in both corn and soybean. Much of the corn throughout the state has begun to tassel and ...