Common name: Black knot of cherry
Causal fungus: Apiosporina morbosa
Subdivision: Ascomycotina

 Common name: Venturia leaf and shoot blight of aspen
Causal fungus: Venturia tremulae and Venturia populina
Subdivision: Ascomycotina

Common name: Chestnut blight
Causal fungus: New name:Cryphonectria parasitica
Subdivision: Ascomycotina

Common name: Hypoxylon canker
Causal fungus:Hypoxylon mammatum
Subdivision: Ascomycotina

Common name: Beech-Scale-Nectria Canker or Beech Bark Disease
Scale insect: Cryptococcus fagi
Causal fungus: Nectria coccinea var. faginata
Subdivision: Ascomycotina

Common name: Eutypella canker of maple
Causal fungus: Eutypella parasitica
Subdivision: Ascomycotina

Common name: Nectria canker
Causal fungus: Nectria galligena
Subdivision: Ascomycotina

HARDWOOD CANKER caused by wood boring beetle 
Common name: Sugar maple borer
Causal insect: Glycobius speciosus
Host: Sugar maple (Acer saccharum) 

Common name: Annual canker of maple
Causal fungus: Fusarium solani
Subdivision: Deuteromycotina or Fungi Imperfecti

Common name: Cryptosporiopsis canker of red maple
Causal fungus: Cryptosporiopsis sp. http://www.keystonetree.com/ccanker.htm
Subdivision: Deuteromycotina

Common name: Butternut canker
Causal fungus: Sirococcus clavigignenti-juglandacearum 
Subdivision: Deuteromycotina or Fungi Imperfecti

Common name: Yellow birch canker or Diaporthe canker
Causal fungus: Diaporthe alleghaniensis; Imperfect state = Phomopsis sp.
Subdivision:Ascomycotina

Common name:Hickory gall 
Causal fungus: Phomopsis sp.
Subdivision: Fungi Imperfecti

 Common name: Sphaeropsis blight or Diplodia tip blight
Causal fungus: New name: Sphaeropsis sapinea
Old name: Diplodia pinea
Subdivision: Deuteromycotina or Fungi Imperfecti

Common name: Leucostoma canker or Cytospora canker
Causal fungus: New name: Leucostoma kunzei var. piceae (Ascomycotina) 
Old name: Cytosporakunzei var. piceae (Deuteromycotina) 

Common name: Pitch canker of southern pines
Causal fungus: Fusarium subglutinans
Subdivision: Deuteromycotina or Fungi Imperfecti

Common name: Caliciopsis canker
Causal fungus: Caliciopsis pinea
Subdivision: Ascomycotina

Common name: Spruce gall
Cause: Unknown 
Hosts: Spruce, including red spruce in the Northeast 
Symptoms: Globose galls on branches and stems that may be tiny to nearly a meter in diameter, many times the diameter of the stem.