Emerging Disease: Tar Spot
‘This is a Good Year to Be Out Scouting & Know What’s Going on in Your Region.’
By Emily Croft
Tar spot is an emerging foliar leaf disease in corn which first appeared in the U.S. in 2015 and was later identified in Ontario in 2020.
As the disease continues to spread and impact Ontario’s corn crop, it’s important that producers are informed about how to identify tar spot and which resources are available to monitor it in their area and beyond.