There are several leaf diseases that can infect corn in Kansas in any given year. They can all be controlled with some combination of hybrid selection, tillage management, crop rotation, planting dates, or foliar fungicides.
Southern rust in corn has been detected in both Kansas and Nebraska. Get answers to the most common questions associated with this corn disease in this article from K-State Plant Pathology.
What diseases are cropping up in corn and soybean fields this summer? For corn, most fungicide applications have been made, except for late-planted fields. Soybeans are generally looking good. Read more about what diseases have been found in soybean fields.
Southern rust is now active on corn in Texas, Louisiana, and Georgia. Although this disease has not yet been reported in Kansas, it is time to start actively monitoring corn fields. The 10-day forecast indicates that weather will remain favorable for disease development.