Gray Leaf Spot on Corn. Gray leaf spot, caused by the fungus Cercospora zeae maydis is the most significant yield-limiting disease of corn worldwide [1]. The disease was first reported in Illinois in ...

Gray leaf spot is a widespread fungal disease in corn, responsible for a 23-million-bushel yield loss in the U.S. in 2024. 1 The challenge with controlling gray leaf spot isn’t just deciding ...

If we could get a year without seeing gray leaf spot in a field, it would make for a glorious year for corn yields. However, the wicked reality of this situation is that we can’t! As each year ...

Several fungicides are available to help manage southern rust, tar spot, gray leaf spot, and other leaf diseases with a recommended application occurring at late vegetative stages through R1 for most ...

Disease pressure in certain parts of Indiana is starting to ramp up. “About every field I’m in right now, I can find gray ...

Past V6 and approaching VT, be sure to scout for gray leaf spot, Northern Corn Leaf Blight (NCLB), and Curvularia leaf spot, especially in fields with a history of disease. For insect management, ...

It’s estimated that tar spot, a fungal disease affecting corn, caused farmers to lose around $3 billion in the United States from 2018 to 2021.

Gray leaf spot (GLS) is not uncommon in many cornfields in our area. This leaf disease thrives in high humidity and warm weather, both of which we've had in abundance ...

Gray Leaf Spot (GLS) of corn is being reported in several areas across the state. The fungus Cercospora Zeae-maydis causes this common leaf blight. Gray leaf spot has easily identifiable ...