The Texas A&M AgriLife Extension Entomology Group has produced a bulletin for corn leafhoppers.  I encourage you to read this to learn about the insect, disease, and management suggestions.  The bulletin can be found here:  https://agrilife.org/mid-coast-ipm/files/2024/10/ENTO-PU-229-Corn-Leafhopper-and-the-Red-Stunt-Disease-Complex.pdf  Previous posts about corn leafhoppers can be found here:  https://agrilife.org/mid-coast-ipm/tag/corn-leafhopper/