Zone de Texte: Phytophthora ramorum (SOD) Zone de Texte: new pathogen (named 2000) USA: death of native American Quercus & Lithocarpus Europe: Rhododendron and Viburnum dieback and leaf blight Emergency EC legislation (November 2002) How much threat to UK trees? Zone de Texte: Sudden oak death Zone de Texte: Rhododendron

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