News

Officials are monitoring the spread of a disease that is hurting corn production in Kansas. The Kansas State Research and ...
“Homegrown tar spot will be the easiest to find below the ear right now. Later, when the disease is windblown around like a morning fog, you’ll find it high on the corn plant,” he says.
WEST LAFAYETTE, Ind. — For more than a century, tar spot fungal disease in corn kept its distance from the U.S., biding its time. “Tar spot had not been detected in the U.S. prior to 2015, but it has ...
Tar spot has been detected again in the state, with the first confirmed report of 2025 occurring June 11 in northeast Kansas.
But the annual damages from this disease have not been a simple linear progression: In the northern U.S., tar spot claimed the highest losses for corn in 2024, 2022 and 2021, yet in 2023 and 2020 ...
VOLGA, S.D. — Tar spot, a fungal disease found in corn, was discovered in 44 counties in South Dakota this growing season, which totals to every county on the eastern half of the state.
Ohio State Extension educator Jason Hartschuh gives a rundown of considerations for applying fungicides to corn silage corn.
Tar spot has been found in Nebraska corn, but researchers say to wait on fungicide and explore plant nutrition strategies ...
Tar spot disease lessens a corn plant’s ability to absorb sunlight, thereby weakening the plant and reducing yield. The disease is caused by the Phyllachora maydis fungus.
Tar spot is a fungal disease that affects corn. Travis Faske, a University of Arkansas Plant Pathology Professor, says the pathogen is relatively new to the United States.