Species
Apiosporina morbosa (Black knot)
Apiosporina morbosa. Photo: (c) Joe Bartok, some rights reserved (CC BY-NC)
Dibotryon morbosum or Apiosporina morbosa is a plant pathogen, which is the causal agent of black knot. It affects cherry, plum, apricot and chokecherry trees in North America. The disease produces rough, black growths that encircle and kill the infested parts, and provide habitat for insects.
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