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

Here are three of his recent learnings: 1. Tillage is not always effective to manage tar spot since it travels via wind. “The spores will travel at least three-quarters of a mile and probably ...

“In 2021 we saw tar spot early on the corn-on-corn crops first,” he recalls. “But once it fired up, it was everywhere. Spore clouds infected a lot of fields in a hurry.” In these ...

Tar spot is an ugly but mostly harmless disease ... damp conditions give it the opportunity to spread. Breezes carry the ...