Black Knot Fungus, Dibotryon morbosum or Apiosporina morbosa, on flowering plum tree

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Photo credit: © Martin Shields / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: apiosporina, black, branch, dibotryon, disease, diseased, flowering, fruit, fungal, fungus, infected, infection, knot, morbosa, morbosum, ornamental, pathogen, plant, plum, tree