Hello,

It is not likely that burr oak will have chlorosis because it tolerates a wide pH range. More likely is a root zone issue that is either not allowing water and/or oxygen to move through the vascular system. Do you have a good idea how long a period of time  the soil is waterlogged? How many times per year does the soil become soaked or flooded?

You can get a professional diagnosis in a couple ways. Firstly you can email pictures of the whole tree, pictures of any damaged bark on the trunk or branches, a picture of where the trunk enters the soil,  and close ups of the branches and leaves( picture the fronts and the backs)  along with the history of the tree- when transplanted, how long it is flooded, what chemicals were applied— to MSU Plant Diagnostic lab. After reviewing your pictures they may ask you to mail samples. There is a small fee for their service.

Secondly you can hire a certified arborist, a professional who has taken training in care, diseases, pests and passed certification tests. He/she will come on site and give a complete diagnosis and a plant care plan. Find certified arborists by zip code here—-

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