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.
This article provides an update on the status southern rust and common rust on corn in Kansas as of June 25, 2021. Also discussed is an unusual symptom showing up in select northeast Kansas field called lesion mimic.
Southern rust has been detected in southern Kansas. This is the first confirmed report in Kansas for this growing season. Corn producers are encouraged to be actively scouting their fields. This disease can spread quickly if temperature and humidity are high.
Southern rust has been reported in two additional counties in Kansas since the last update on July 8. While levels are low, recent weather in some areas has been favorable for disease development. Early detection is crucial for successful management of this corn disease.
Southern rust has been detected in northeast Kansas, making this the first report of 2022. The severity will be dependent on the weather. Southern rust likes 90-degree days, warm nights, and high humidity. Get answers to the most questions about southern rust in this article from K-State plant pathologist, Dr. Rodrigo Borba Onofre.