Distribution details in Japan (Honshu)
First recorded in: 2010
EPPO Reporting Service (2014/015) : detected in June 2010, on Impatiens sultanii plants in a glasshouse in Yamagata Prefecture, and in March 2012 in a plastic house nursery in Shimane Prefecture.
* Satou M, Sugawara K, Nagashima S, Tsukamoto T, Matsushita Y (2013) Downy mildew of busy lizzie caused by Plasmopara obducens in Japan. Journal of General Plant Pathology 79(3), 205-208.