As you scout and think you’ve found the disease, an easy way to confirm what you’re dealing with is to take your hand and try to wipe the tar spots off the corn plants (gloves are recommended).

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 been endemic in several ...

The disease lead to severe corn crop losses in the counties where it was found last year. In 2023, tar spot afflicted corn production in 12 counties, all located in northeast Kansas, causing ...

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. It creates raised, bumpy ...

This year, it has been found in corn fields in 44 counties across South Dakota. Tar spot, a fungal disease found in corn, is making its way into the upper Midwest. Photo taken Oct. 3 at the SDSU ...

For troublesome corn diseases like tar spot, southern rust, gray leaf spot, northern corn leaf blight and other fungal ...

It’s been 10 years since the first documented U.S. tar spot case in Indiana back in 2015. Corn crops began experiencing substantial yield reduction from the disease three years later in 2018.

ST. LOUIS — Four confirmed cases of tar spots have been spotted on corn this year in Missouri. Phyllachora maydis, a fungus, is the cause. The fungal disease appears on crops as tiny ...

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. He said it has a long ...

Insignum AgTech is collaborating with Purdue University researchers to identify early stages of tar spot disease outbreaks in corn plants by using already present DNA to turn the color of the leaves.

A separate report from K-State’s Agronomy eUpdate on June 6 stated Kansas is the first state where tar spot is being found in 2024. The disease lead to severe corn crop losses in the counties ...