 To spray or not to spray? Fungicide seems to be a key question this growing season, although Lee Koenig, still Northeast Iowa agronomist with our friends at Vex Hybrid, says their research shows it really shouldn't be. With the amount of moisture we've had, we're going to see increased risk for anthracnose, crown rot. I'm already seeing some great leaf spot. Some tar spot has already been spotted as well. You've been researching this for a long time, and in these conditions, it's about as safe a bet as it comes, it sounds like.