Tar spot of corn has been confirmed in two northern Missouri counties: Holt County in northwestern Missouri and Marion County in northeastern Missouri, as well as in six counties in central Iowa and ...

Severe cases of tar spot in corn can kill plants and result in grain yield losses up to 60 bushels per acre.¹ How can something as simple as residue management help you mitigate the impact of this ...

Extension experts share four proven strategies to improve corn yields that focus on efficient, timely use of inputs rather ...

Agricultural Research Service scientists are leaving no stone—or rather, leaf—unturned in their search for new ways to counter the fungus that causes tar spot, a yield-robbing disease of field corn in ...

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 ...

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 ...

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 ...

JOPLIN, Mo. (KSNF) — A fungal disease targeting corn crops is moving across the Midwest and Great Plains, according to a report from researchers at Kansas State University. Phyllachora maydis, also ...

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, ...

This is an archived article and the information in the article may be outdated.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 ...

Tar spot of corn is a new concern this season after the localized epidemics we experienced last year in Indiana. At this point in the field season, we have not found any active tar spot in corn, but ...

Southern Corn Rust: Southern corn rust was officially confirmed in Posey County this week. We currently have two positive counties and one probable in Indiana. We need your help – if you are out ...