The Q&A Archives: Oal Tree Disease

Question: I have a 20' Oak tree that has brown spots on it's leaves and then the leaves turn completly brown and fall off. Is there something I can do and/or is this a major concern?
Thanks for your help.

Answer: Michael,

I am sorry for this delayed reply to your gardening question. The spring rush has brought a deluge of questions and we are working hard to catch up!

That is most likely due to oak leaf blister disease or a similar fungus. It generally doesn't re-attack the tree in the summer so I would not worry about it now. The damage was done when the leaves first were emerging although symptoms showed up much later. The following web page gives more information:

Thanks for the question. Best wishes for a wonderful gardening season. Please stop in again soon!

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