alberta
apiosporina
attack
bark
black
black knot
blackknot
branch
brown
canada
cancer
canker
cherry
closeup
crack
destroy
disease
forest
fungi
fungus
gall
growth
illness
infection
infestation
knot
mass
morbosa
morbsum
natural
nature
nobody
outdoor
parasite
pest
plant
plum
problem
prunus
swelling
tar
tree
truffle
widespread
wood