First report of Bean common mosaic virus infecting flowering ginger (Alpinia purpurata) in Hawaii.
In March 2019, flowering ginger plants (Alpinia purpurata) with virus-like symptoms were observed on Oahu, Hawaii, USA. The symptoms included green mosaic patterns along leaf veins, stunted growth, and chlorosis. Leaf samples from two symptomatic A. purpurata plants were collected, and total nucleic acids were extracted for testing by PCR. Direct Sanger sequencing and analysis of the resultant PCR products from the two samples using the potyviral primers indicated the presence of Bean common mosaic virus (BCMV). This is thought to be the first report of Bean common mosaic virus naturally infecting flowering ginger in Hawaii, USA.