• R. Kenneth Horst
Reference work entry


Galls are local swellings, hyperplastic enlargements of plant tissue due to stimulation from insects, bacteria, fungi, viruses, and occasionally physiological factors. Crown gall, a common and serious problem, is discussed under Bacterial Diseases. Cedar galls are treated under Rusts. See Black Knot for hypertrophy of plum branches.


Plant Pathology Host Cell Plant Tissue Epidermal Cell Downy Mildew 
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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • R. Kenneth Horst
    • 1
  1. 1.Department of Plant Pathology and Plant-Microbe BiologyCornell UniversityIthacaUSA

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