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Spots on Red Oak leaves...do we need an arborist?
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Author:  Dwimble [ Fri Sep 04, 2009 11:30 pm ]
Post subject:  Spots on Red Oak leaves...do we need an arborist?

I am in Fort Worth and we have a Red Oak that we planted almost exactly a year ago (I'd guess its about 15' tall). It has been absolutely great and we've had no problems with it at all. The other day, however, we noticed small spots on pretty much all of its leaves (see pics). Anyone know what could be causing this? Do we need to call an arborist? We are completely new to this and are afraid of losing our trees...we lost some last summer and don't want to go through that again, considering the cost and effort to replace them at that size.

FYI, we have been watering it three times a week all summer according to the tree farm's instructions.

Thanks in advance for any advice you can give.

Mike

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Author:  northwesterner [ Fri Nov 13, 2009 11:02 am ]
Post subject:  Re: Spots on Red Oak leaves...do we need an arborist?

Is the tree still having problems? Would you post a photo of the back side of an affected leaf also? Often what you see on the top is the effect of something underneath at work.

Also, that sounds like too much water. Better to water deeply less often. It the tree has wet feet it won't be happy, and that frequent watering only encourages shallow roots, which leave the tree vulnerable during a dry year and if you don't continue to water that way.

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