That includes the fungus tar spot. Showing up as black speckled dots on plant leaves, tar spot has the potential of severely reducing yield, with some reported losses of 20 bu. to up to 100 bu ...

Tar spot decimated many central Illinois cornfields in 2021. But the disease was nearly a no-show in those same fields this past year. One farmer recently asked Ken Ferrie, “What kind of risk do ...

An agronomist with AgriGold says many farmers have tar spot on their mind. Brian Weihmeir, who covers central Illinois, says ...