First Report of Bipolaris gigantea Causing Bipolaris Leaf Spot on Hooked Hair Hops ( Humulus japonicus ) in Kentucky (2026)

Hooked hair hops, aka Japanese hops, (Humulus japonicus; Cannabaceae), is an introduced invasive vine in North America. The weedy vine was observed growing on the banks of the Kentucky River (37°31′52.1″N, 83°21′04.7″W) in Breathitt County, Kentucky, USA, in September 2024 adjacent to research plots