Gray leaf spot is also active in the lower canopy at multiple sites across the state. The lesions are light tan in color and generally narrow and rectangular, and can be as long as 2 inches. As the ...

USDA is estimating near record corn and soybean crops in Iowa this year, but early yields results indicate that might be difficult to achieve, at least for corn. At the Reints farm in northeast Iowa, ...

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 ...

WATERTOWN, S.D. — Across most of South Dakota, corn diseases have been worse than normal this year. Madalyn Shires, assistant professor and SDSU Extension plant pathology specialist, hosted a field ...

The collaboration is supported by grants from the Indiana Corn Marketing Council and an Innovation Voucher from the state of Indiana. Jin’s team also will develop algorithms that pick up the color ...

Severe lodging of a corn field during September in Saunders County, Nebraska. Editor’s note: The following was written by Tamra Jackson-Ziems, University of Nebraska Extension plant pathologist, Jenny ...

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.

COLUMBIA, Mo. (KCTV) - Researchers in Missouri are hoping to save one of the state’s biggest crops, but the solution won’t come in time to help this year, as a pest from out-of-state attacks ...

An unusually warm, wet summer fueled the spread of crop diseases, and now some corn farmers have reported lower-than-expected yields.

ADAMS COUNTY, Pa. — “Tar spot,” an invasive fungal disease of corn, is expected to expand across Pennsylvania in the coming corn season, after being found for the first time in several counties in ...

LE MARS, Iowa — After a rough start to the growing season for Iowa’s corn and soybean crops and spotty showers throughout the summer, crops are starting to be stressed in northwestern Iowa. “This ...