菱叶常春藤

Hedera rhombea (Miq.) Paul

are host of

• Global Biotic Interactions: Phomopsis
• Global Biotic Interactions: Auricularia nigricans (Sw.) Birkebak, Looney & Sánchez-García 2013 (毛木耳)
• Global Biotic Interactions: Meliola dichotoma Berk. & M. A. Curtis 1860
• Global Biotic Interactions: Colletotrichum trichellum (Fr.) Duke 1928
• Global Biotic Interactions: Thanatephorus cucumeris (A. B. Frank) Donk 1956 (稻紋枯病菌)

are parasitized by

• Global Biotic Interactions: Apleurotropis kumatai (Kamijo 1977)

have flowers visited by

• Global Biotic Interactions: Vespa velutina Lepeletier 1836 (黃腳虎頭蜂)