Gummosis

Gummosis is the formation of patches of a gummy substance on the surface of certain plants, particularly fruit trees. This occurs when sap oozes from wounds or cankers as a reaction to outside stimuli such as adverse weather conditions, infections, insect problems, or mechanical damage. It is understood as a plant physiological disease.[1]

Canker-induced gummosis on a Tibetan cherry
Plant sap rises from the bark of a cherry tree

References
  1. "Gardening in Georgia. Accessed : 2010-06-01". Archived from the original on 2007-08-31. Retrieved 2010-06-01.
  • Video and commentary on gummosis on a cherry tree.


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