title: Obituary: John Michael Thresh – On lifelong war with plant viruses.
mesh_terms: D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D010935:Plant Diseases / Q000517:prevention & control* / Q000821:virology*; D010942:Plant Viruses; D006113:United Kingdom; D014773:Virology / Q000266:history*