It’s more important than ever for U.S. Corn Belt farmers to stay vigilant in seeking out early tar spot of corn to avoid significant yield loss. New data shows that tar spot of corn — which ...

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 ...

ROCHESTER — Carroll’s Corn, often called “Mayo Clinic’s break room,” is more than doubling its space in downtown Rochester by opening a second, more visible spot. “We need more space ...

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 ...

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.

ARVA – Tar ... cycle that can shorten to one week if conditions are favourable. It emerges the first week in July and wraps up in four to six weeks. Spraying for tar spot should be combined with ...

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 ...

UW-Madison Plant Pathology Prof. Damon Smith says tar spot has put moderate pressure on corn growers this year. The growing season has seen conducive conditions for the disease, but no extended dry ...

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 ...

COLUMBIA, Mo. — When it comes to tar spot, University of Missouri Extension plant pathologist Mandy Bish provides some perspective for the state’s corn producers. “If you see tar spot in the ...

Cool temperatures and humid conditions are the conditions that spur this disease in corn. Tar spot was first confirmed in northeast Missouri in 2019, reached northwest Missouri in 2022 ...