Distribution details in United States of America (Delaware)
EPPO Reporting Service (2009/129) : first found in 2004 on ornamental Malus toringo.
* Yun HY, Minnis AM, Rossman AY (2009) First report of Japanese apple rust caused by Gymnosporangium yamadae on Malus sp. in North America. Plant Disease 93(4), p 430.