Cotoneaster pannosus Franch.

are eaten by

• Global Biotic Interactions: Turdus fuscater gigas Fraser 1841
• Global Biotic Interactions: Harmonia axyridis (Pallas 1773) (harlekiinileppäpirkko)
• Global Biotic Interactions: Danaus (Anosia) plexippus Linnaeus 1758 (Monarkkiperhonen)
• Global Biotic Interactions: Callocephalon fimbriatum (Grant & J 1803) (kekälekakadu)
• Global Biotic Interactions: Callocephalon fimbriatum (Grant & J 1803) (kekälekakadu)

are host of

• Global Biotic Interactions: Eutypa lata (Pers.) Tul. & C. Tul. 1863
• Global Biotic Interactions: Pseudopestalotiopsis theae (Sawada) Maharachch., K. D. Hyde & Crous 2014

have flowers visited by

• Global Biotic Interactions: Volucella zonaria (Poda 1761)
• Global Biotic Interactions: Bombus pascuorum (Scopoli 1763) (peltokimalainen)
• Global Biotic Interactions: Bombus terrestris (Linnaeus 1758) (kontukimalainen)
• Global Biotic Interactions: Apis mellifera Linnaeus 1758 (tarhamehiläinen)
• Global Biotic Interactions: Syritta pipiens (Linnaeus 1758) (pikkupuuhari)