Youngia japonica subsp. japonica

are host of

• Global Biotic Interactions: Podosphaera fuliginea (Schltdl.) U. Braun & S. Takam. 2000
• Global Biotic Interactions: Bremia ovata
• Global Biotic Interactions: Bremia ovata
• Global Biotic Interactions: Puccinia crepidis J. Schröt. 1887
• Global Biotic Interactions: Golovinomyces cichoracearum (DC.) V. P. Heluta 1988
• Global Biotic Interactions: Bremia lactucae
• Global Biotic Interactions: Septoria crepidis Vestergr. 1896
• Global Biotic Interactions: Sclerotinia sclerotiorum (Lib.) de Bary 1884
• Global Biotic Interactions: Podosphaera tridactyla (Wallr.) de Bary 1870
• Global Biotic Interactions: Stemphylium botryosum Wallr. 1833
• Global Biotic Interactions: Puccinia crepidis-japonicae (Lindr.) Dietel 1908
• Global Biotic Interactions: Puccinia crepidis-japonicae (Lindr.) Dietel 1908
• Global Biotic Interactions: Puccinia crepidis-japonicae (Lindr.) Dietel 1908
• Global Biotic Interactions: Puccinia crepidis-japonicae (Lindr.) Dietel 1908
• Global Biotic Interactions: Puccinia crepidis-japonicae (Lindr.) Dietel 1908
• Global Biotic Interactions: Puccinia crepidis-japonicae (Lindr.) Dietel 1908
• Global Biotic Interactions: Puccinia crepidis-japonicae (Lindr.) Dietel 1908
• Global Biotic Interactions: Puccinia crepidis-japonicae (Lindr.) Dietel 1908
• Global Biotic Interactions: Puccinia crepidis-japonicae (Lindr.) Dietel 1908
• Global Biotic Interactions: Puccinia crepidis-japonicae (Lindr.) Dietel 1908
• Global Biotic Interactions: Puccinia crepidis-japonicae (Lindr.) Dietel 1908
• Global Biotic Interactions: Puccinia crepidis-japonicae (Lindr.) Dietel 1908
• Global Biotic Interactions: Puccinia crepidis-japonicae (Lindr.) Dietel 1908
• Global Biotic Interactions: Puccinia crepidis-japonicae (Lindr.) Dietel 1908
• Global Biotic Interactions: Puccinia crepidis-japonicae (Lindr.) Dietel 1908
• Global Biotic Interactions: Puccinia crepidis-japonicae (Lindr.) Dietel 1908