Since tar spot was first found in the United States in 2015, it has continued its expansion into the upper Midwest. This year, it has been found in corn fields in 44 counties across South Dakota. Tar ...

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

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, ...

JONESBORO, Ark. (KAIT) - A pathogen capable of affecting crops is making its way to Arkansas and residents could unknowingly be spreading it. Tar spot is a fungal disease that affects corn. Travis ...

Whether tar spot is a significant problem for corn growers this season is yet to be seen, but one thing you need to know – it’s already showing up in some Midwest fields. The second week of June, the ...

VIOLA, Ill. — Despite an overall increase in corn yields this year, farmers across the Midwest are facing a serious problem: a fungal disease called tar spot, fueled by a summer of wet, humid weather.

Gray leaf spot is a widespread fungal disease in corn, responsible for a 23-million-bushel yield loss in the U.S. in 2024. 1 The challenge with controlling gray leaf spot isn’t just deciding whether ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. JOPLIN, Mo. (KSNF) — A fungal disease ...