Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The pathological formation of patches of gum on certain plants, such as sugar cane and some fruit trees, resulting from attack by insects, microorganisms, or adverse weather conditions.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The formation of patches of a gummy substance on the surface of certain plants, particularly fruit trees, caused by sap oozing from wounds or cankers.

from The Century Dictionary and Cyclopedia

  • n. In botany, the formation of gum in the older organs of plants by the transformation of large groups of tissue, as in the production of cherry-gum and gum tragacanth.
  • n. An abnormal production and flow of gum from cracks or wounds of trees.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. pathological production of gummy exudates in citrus and various stone-fruit trees
  • n. disease of citrus trees caused by the fungus Phytophthora citrophthora

Etymologies

Latin gummi, gum; see gum1 + -osis.
(American Heritage® Dictionary of the English Language, Fourth Edition)
gum +‎ -osis (Wiktionary)

Examples

  • Symptoms of sunscald closely mimic the gummosis disease, but are restricted to the side of the trunk facing the sun.

    Chapter 8

  • Reported diseases include a bark gummosis, one defoliation leafspot, and some fungal diseases of seedlings in nurseries.

    Chapter 8

  • The gum disease (_gummosis, gum-flux) _ is only too well known to all who grow peaches, apricots, plums, cherries, or other stone fruits.

    Scientific American Supplement, No. 441, June 14, 1884.

  • A. Sounds like gummosis caused by the bacteria Pseudomonas.

    JSOnline.com

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