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Trees/oak tree growth


treehugger wrote at 2012-12-16 23:02:22
The growth is a gall also known as a burl.  Galls can be caused by many different insects or in some cases bacteria.  Just by looking though, it would be difficult to determine if it is a crown gall which is caused by a bacteria.


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Jim Hyland


I am an expert in Forestry, Forest Entomology, Forest Pest Control, and Forest Health. Extensive knowledge in Identification of insects and diseases of trees. Expert on Bark beetles and other insects that attack forests. Also a Registrated Forester with extensive knowledge in the management and care of forests.


34 years as State Pest Management Chief in a Southern state. Extensive knowledge in Forestry.

BS with major in Forest Management and Entomology
Registered Forester
Certified Pesticide Appicator

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