After a relatively slow start to the growing season, southern corn rust has officially arrived in Kansas. The first confirmed test of southern rust in southeast Kansas was in Bourbon and Crawford on July 22. Unlike several other common corn diseases, including tar spot and gray leaf spot, southern rust does not survive Kansas winters. To help producers stay informed, the Kansas Corn Commission and K-State Plant Pathology have developed an online Corn Disease Resource Center that allows growers to monitor diseases affecting corn across Kansas. Early detection, combined with timely management decisions, can help protect yield potential if southern rust continues to spread across Kansas.