horned oak gall

horned oak gall
a small, round tumor, formed around wasp eggs laid in the branches of a pin oak tree, that disrupts the flow of nutrients to the tree, with consequent defoliation and death. Also called oak gall.

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Universalium. 2010.

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  • horned oak gall — a small, round tumor, formed around wasp eggs laid in the branches of a pin oak tree, that disrupts the flow of nutrients to the tree, with consequent defoliation and death. Also called oak gall …   Useful english dictionary

  • oak gall — noun : a gall on oak caused by the presence of insect larvae especially of the family Cynipidae * * * any of various rounded galls produced on oaks, esp. the horned oak gall. Also called oak apple. [1760 70] * * * oak gall noun A gall on an oak… …   Useful english dictionary

  • oak gall — any of various rounded galls produced on oaks, esp. the horned oak gall. Also called oak apple. [1760 70] * * * …   Universalium

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