Definition of "gummosis" []

• 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. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Symptoms of sunscald closely mimic the gummosis disease, but are restricted to the side of the trunk facing the sun."
• "Reported diseases include a bark gummosis, one defoliation leafspot, and some fungal diseases of seedlings in nurseries."
• "The gum disease (_gummosis, gum-flux) _ is only too well known to all who grow peaches, apricots, plums, cherries, or other stone fruits."