A new disease is plaguing cornfields across the Midwest. Phyllachora maydis is the fungus that causes a corn disease called ...

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 ...

Rains and other factors caused conditions ripe for increasing disease pressure in Indiana the past few years, specifically tar spot. “In 2021, the problem was the disease started about July 3 or ...

Tar spot is an ugly but mostly harmless disease that strikes several maple species. As its name implies, tar spot disease ...