Feed the Future Biotechnology Potato Partnership Jan Fierro - December 14, 2020 A new study published in Plant Pathology identifies for the first time the genotypes of P. infestans, causing late blight in the main potato-growing regions in Java, Indonesia. Potato late blight disease is credited as the cause of the great Irish potato famine of 1845. It has been called the worst of all diseases known to potato. Farmers hope for effective and durable late blight solutions as researchers continue to study and understand Phytophthora infestans, the fungus-like microorganism that causes the disease. A new study, P. infestans, causing late blight in the main potato-growing regions on the island of Java in Indonesia and secondly, examines the diversity in the genetic makeup in the