On the sidelines of the Ag PhD Field Day, BASF Technical Service Representative Dan Waldstien said tar spot is becoming a bigger problem across the Midwest. “We’ve got to be proactive. If we wait until we see symptoms of a disease, whether it is tar spot or other diseases, it’s usually about two weeks past the time when we should have been spraying,” said Waldstien. “So look at those environmental conditions to make that application is happening at the right time, not waiting until we see the symptomology because we’re playing catchup at that point.”
