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/