First report of fire blight caused by Erwinia amylovora on Chinese quince in South Korea.
During a survey on fire blight of rosaceous plants in July 2015, symptoms of typical blight were observed on twigs of Chinese quince (Chaenomeles sinensis [Pseudocydonia sinensis]) in a commercial nursery in Cheonan, located 12 km from the orchard where fire blight of apple occurred in Anseong, South Korea. Leaf and shoot blight symptoms were observed on two of the 671 ten-year-old plants surveyed. Two bacterial isolates were recovered on trypticase soy agar from twig lesions. Based on the results of phenotypic assays, sequence analyses and pathogenicity tests, the isolates were identified as E. amylovora. This is thought to be the first report of fire blight of Chinese quince caused by E. amylovora in Korea.