Soybeans cannot host Phyllachora maydis, the fungus responsible for tar spot infections, so corn and soybean rotations can help break the disease cycle. If the weather cooperates, applying ...

Farmers who are watching for the development of tar spot in Corn Country are beginning to see some areas starting to light up with the disease. “It’s in Michigan, a lot in Indiana, Ohio ...

Tar spot was first identified in PA at the end of 2020 and has been identified in 2 counties in MD and 1 suspected county in VA in 2022 (Fig 1). Symptoms include small, black specks (stroma) on the ...

Tar spot is recognized by its raised black spots that sprout on healthy or dead tissue of corn leaves, stalks or husks. Surrounding some of the speckled black, growers might also find a tan halo, ...

A fungal disease targeting corn crops is moving across the Midwest and Great Plains. Phyllachora maydis, also known as “tar spot,” first appeared in Indiana and Illinois in 2015.

The fungal disease attacks leaf tissue in corn and can rapidly deteriorate the plant. According to the Crop Protection Network, it’s estimated that tar spot caused farmers to lose around $3 ...

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 ...

The fungal disease attacks leaf tissue in corn and can rapidly deteriorate the plant. According to the Crop Protection Network, it’s estimated that tar spot caused farmers to lose around $3 ...