You have no doubt witnessed helicopters and/or spraying aircraft in corn crops the past couple weeks. A lot of seed producers are spraying for corn earworm, banks and two-spotted spider mites in corn.

The weather conditions of 2025 were perfect for a southern rust outbreak across the Midwest, resulting in many growers having to make late-season decisions on disease management. Southern rust is a ...

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 ...

Significant disease pressure is showing up in corn and soybeans earlier this summer than what Daren Mueller saw in 2024 crops. The Iowa State University plant pathologist says the early onset of ...

Alison Robertson says she has been at Iowa State University (ISU) for 21 years, and she’s never seen as widespread a problem southern rust is in Iowa this season. She believes the disease is present ...

Southern corn rust was confirmed on corn leaf samples from Fillmore and Nuckolls counties in southern Nebraska recently. The disease had been confirmed in several states south and east of Nebraska ...

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 ...