The rain chased us out of the field this morning, but we’re bringing the scouting data straight to the studio. In this episode of the Agronomy Moment, Wendell and Selena dive headfirst into mid-summer corn diseases, focusing heavily on Gray Leaf Spot (GLS).With prevailing wet conditions keeping humidity high, GLS is actively creeping up the lower canopy. Selena breaks down the exact "Rule of a Quarter" to help you look at your ear leaves and determine if you have enough pressure to justify pulling the trigger on a fungicide pass right now.We also check the trackers on high-threat diseases like Tar Spot and Southern Rust, and discuss why the R1 to R3 window is your absolute sweet spot for maximum ROI.