Francisco M. Ochoa-Corona

First report of tobacco ringspot virus infecting Hibiscus sabdariffa (roselle) in Oklahoma, USA

In October 2025, Hibiscus sabdariffa plants exhibiting leaf distortion, mottling, and mosaic symptoms were observed in Oklahoma, USA (Figure 1). Disease incidence was approximately 45% in the affected field. Symptomatic leaf samples were submitted to the Plant Disease and Insect Diagnostic Laboratory at Oklahoma State...