Thank you for your question and concerns about your Pin Oak tree. Yes there is a good

the possibility that this may be Chlorosis; however there may be underlying problems

causing this. It may be as simple as insufficient water or adjusting soil pH. A soil test and

analysis may be helpful in determining soil health and taking measures to correct it. 

A certified Arborist would be able to give you a more definitive answer to your concerns as

they would have on-site access to the tree and soil conditions.

I have listed several links below that may give you a better understanding of Oak

problems and also have listed your County Extension Service if you wish to contact them.

I hope this information will be of some help to you concerning your Pin Oak.

Thank you for allowing us to help you with your gardening questions. Here are some other helpful websites:

BYGL Newsletter: http://bygl.osu.edu/

OSUE FactSheets: http://ohioline.osu.edu

State Master Gardener Volunteer website - http://mastergardener.osu.edu

Franklin County
OSU Extension Office

2548 Carmack Road

Columbus, Ohio 43210

Phone:<personal data hidden>

Fax:<personal data hidden>

Link:

Visit the Franklin County Office website

https://hortnews.extension.iastate.edu/pin-oak-chlorosis

https://mast-producing-trees.org/the-many-causes-of-yellow-leaves-on-oak-trees/

https://mast-producing-trees.org/oak-tree-brown-leaves-causes-and-solutions/

https://www.bartlett.com/resources/plant-health-care-recommendations-for-pin-oak.pdf

https://extension.psu.edu/oak-diseases

https://ohioline.osu.edu/factsheet/hyg-1132

https://www.treesaregood.org/findanarborist/findanarborist