Farmers are aware of the multitude of insects and diseases that attack their crops, but consumers may be unaware of the amount of effort that goes into protecting crops from diseases.  Dr. Dean Malvick is a plant pathologist at the University of Minnesota and conducts research to support farmers in this battle. One corn disease that has attracted a lot of attention among farmers over the past several years is Tar Spot, which has traveled from Mexico and invaded the upper Midwest.  For this episode, Dr. Malvick joined Preston and Jason to discuss the latest research on the control of this and other diseases.