Foodplant / saprobe
effuse colony of Acrogenospora anamorph of Acrogenospora sphaerocephala is saprobic on rotten wood of Cornus

Foodplant / saprobe
apothecium of Bisporella sulfurina is saprobic on fallen branch of Cornus
Remarks: season: 9-2

Foodplant / saprobe
immersed, single or paired, beneath clypeus perithecium of Clypeosphaeria mamillana is saprobic on dead twig of Cornus
Remarks: season: (1)2-3

Foodplant / gall
larva of Craneiobia corni causes gall of leaf of Cornus

Foodplant / saprobe
sporodochium of Cryptocoryneum dematiaceous anamorph of Cryptocoryneum condensatum is saprobic on dead bark of Cornus

Foodplant / pathogen
Discula destructiva infects and damages live stem of Cornus

Foodplant / saprobe
effuse colony of Helminthosporium dematiaceous anamorph of Helminthosporium velutinum is saprobic on fallen, dead branch of Cornus

Foodplant / saprobe
hysterothecium of Hysterium angustatum is saprobic on dead, decorticate branch of Cornus
Remarks: season: 3-5

Foodplant / saprobe
superficial perithecium of Lasiosphaeria ovina is saprobic on Armillaria mellea-decayed wood of Cornus
Remarks: season: 9-4

Foodplant / saprobe
densely encrusting Lepidosaphes ulmi is saprobic on live branch of Cornus

Foodplant / saprobe
immersed or erumpent perithecium of Melomastia mastoidea is saprobic on dead branch of Cornus

Foodplant / saprobe
perithecium of Nectria mammoidea var. mammoidea is saprobic on fallen, dead branch of Cornus
Remarks: season: 9-5

Foodplant / spot causer
few, epiphyllous pycnidium of Phyllosticta coelomycetous anamorph of Phyllosticta cornicola causes spots on live leaf of Cornus
Remarks: season: 8-10

Foodplant / sap sucker
Pulvinaria regalis sucks sap of live branch of Cornus

Foodplant / saprobe
colony of Geniculosporium dematiaceous anamorph of Rosellinia aquila is saprobic on dead branch of Cornus
Remarks: season: 2-5

Foodplant / saprobe
colony of Xylohypha anamorphXylohypha dematiaceous anamorph of Xylohypha nigrescens is saprobic on wood of Cornus