Zone de Texte: A. Fried, LRA Karlsruhe Zone de Texte: www.beerendoktor.de Wurzelsymptome Zone de Texte: Upper unrotted parts of roots with red steles (red core disease) Above-ground parts of the plant often stunted; blue-green younger leaves; yellow or red color of older leaves Examine root systems for external symptoms (rotted roots, rat-tail) Cut open unrotted parts of roots, look for internal symptoms (red-stele) Sample size: 1/1000 plants with at least 50 plants up to 300 plants Diagnostic Protocol in preparation Zone de Texte: Lateral roots rotted; adventitious roots rot from the tip upwards; grey to brown appearance (‚rat-tail‘ symptom) Zone de Texte: Phytophthora fragariae var. fragariae Zone de Texte: Appendix I: Symptoms and sampling for identification of quarantine pests of Fragaria spp. (Examples) Zone de Texte: A. Fried, LRA Karlsruhe Zone de Texte: www.beerendoktor.de Wurzelsymptome Zone de Texte: Upper unrotted parts of roots with red steles (red core disease) Above-ground parts of the plant often stunted; blue-green younger leaves; yellow or red color of older leaves Examine root systems for external symptoms (rotted roots, rat-tail) Cut open unrotted parts of roots, look for internal symptoms (red-stele) Sample size: 1/1000 plants with at least 50 plants up to 300 plants Diagnostic Protocol in preparation Zone de Texte: Lateral roots rotted; adventitious roots rot from the tip upwards; grey to brown appearance (‚rat-tail‘ symptom) Zone de Texte: Phytophthora fragariae var. fragariae Zone de Texte: Appendix I: Symptoms and sampling for identification of quarantine pests of Fragaria spp. (Examples)

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