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 ...

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 lesions (bottom left). Sporulating lesion (bottom right). Tar spot yearly spread from 2015 to 2021 (right panel). First reported in 2015, tar spot is an emerging disease on corn that has ...

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 ...

ARVA – Tar spot can be a big black hole for potential corn yields, in the neighbourhood ... Tar spot normally has a two-week reproduction cycle that can shorten to one week if conditions are ...

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.

If you have questions about tar spot and what to do about it, call Onofre at 785-477-0171 or send an email to onofre@ksu.edu. For more Kansas news, click here .

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 ...