Q. Are the reddish galls on my oak tree leaves going to harm this mature tree?


Doing some research on your question about reddish galls on your oak tree leaves led me to very good and comprehensive advice from the Penn State Agricultural Extension Service, which should be applicable in New York. 

Click here for link.

Fortunately, it seems that this will not harm the tree. 


  • Last Updated Jan 08, 2019
  • Views 31
  • Answered By Aska Gardener

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