Valsa

are host of

• Global Biotic Interactions: Stylonectria purtonii (Grev.) Gräfenhan 2011
• Global Biotic Interactions: Stylonectria purtonii (Grev.) Gräfenhan 2011
• Global Biotic Interactions: Tremella globispora D. A. Reid 1970
• Global Biotic Interactions: Tremella globispora D. A. Reid 1970
• Global Biotic Interactions: Cryptocoryneum hysterioides (Corda) Peyronel 1918

have host

• Global Biotic Interactions: Shepherdia canadensis (L.) Nutt. (野牛果)
• Global Biotic Interactions: Prunus avium (L.) L. (甜櫻桃)
• Global Biotic Interactions: Pyrus communis L. (西洋梨)
• Global Biotic Interactions: Nothofagus fusca (Hook. fil.) Oerst.
• Global Biotic Interactions: Cornus sericea L. (柔枝红瑞木)