BROOKINGS, S.D. - Southern rust was found in Union, Clay and Minnehaha Counties at low incidence and severity, says Emmanuel Byamukama, South Dakota State University Extension plant pathologist.

Corn production is a marathon every season, and even though the 2021 crop in Illinois is only 30 days away from reaching the finish line it still needs to be monitored for insects and disease. “We’re ...

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 ...

Tire tracks run through a field of corn in Iowa. A fungus that attacks corn has spread to over 40 Iowa counties. Southern rust creates reddish-orange patches on the tops of corn leaves. This blocks ...

If one picture is worth a thousand words, then the video Iowa farmer Dan Striegel shot last week must be worth thousands more. In the video, Striegel is shown harvesting a field of emerald-green corn ...

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, ...

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.

(Maryville) -- As farmers reflect on the 2025 growing season, one disease stands out: southern rust. The fungus spread not ...

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 ...

Tar spot is caused by the fungal pathogen Phyllachora maydis. Under favorable conditions for disease, yield loss on susceptible hybrids can be severe. Tar spot was first identified in DE at the end of ...

Southern corn rust was confirmed in samples from Fillmore, Jefferson, Thayer, Adams, Clay, Buffalo and Sherman counties in southeast and south central Nebraska this week. The disease was only sparsely ...