That is very interesting ribavarin shows some promise in potato viroid. Thanks for sharing that. It sent me rabbit holing haha… https://www.researchgate.net/publication/292748584_Production_of_Potato_Spindle_Tuber_Viroid-Free_Potato_Plant_Materials_in_Vitro
This paper seems to say 50 mg/L Salicylic was 83.3 effective in viroid elimination