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 1924, and has increased ...

Telenko digs into multiple corn diseases, and while the first sign ... we can go with that standard timing that we go with gray leaf spot at that VT stage, that early tassel to silking.

Keep an eye on all disease issues in the field, Kleczewski says, including the more common diseases such as northern corn leaf blight or gray leaf spot. “Your scouting protocol should be ...

Northern corn leaf blight (NCLB) is a disease of corn caused by ... to 84°F [2], which is cooler than temperatures optimal for a common similar disease, Gray leaf spot. Persistant moisture on the ...