Agronomy Tip: Put Tar Spot Disease on Your Radar

Cody Pettit, field agronomist with Pioneer Seeds says tar spot is a disease to monitor because it’s here to stay. “Tar spot is the worst I’ve seen it this year,” he says. “It’s a newer disease that is somewhat overlooked by farmers. In northeast Illinois, early applications of fungicide have proven helpful, and it’s important to keep in mind it will overwinter in the soil residue.”