Problem with Oak leaves.

[Jpane]

Can anyone offer a possible diagnosis of my oak tree. Is this rust? How should I treat this? Every leaf on the tree looks like this. And the tree continues to put out new growth. This is also only happening with this particular tree. ( no other oaks in the nursery)

 

[DonovanC]

What fertilizer are you using? Perhaps a sort of deficiency? Mg perhaps?

 

[Jpane]

What fertilizer are you using? Perhaps a sort of deficiency? Mg perhaps?

I use various fertilizers including miracle grow organic, Dr Earth organic as well as Micro Total for minerals including Mg. I admit that I may be a little light with my frequency of fertilizing. Thanks for your input.

 

[fredman]

This might help...don't know
https://www.extension.iastate.edu/news/2006/jul/070301.htm
There's contact details at the bottom. Maybe hear what she thinks.

 

[0soyoung]

I think someone has been spraying herbicide and some wafted onto your tree.

Maybe it was atrazine. It is a commonly used broadleaf weed killer.

 

[Jpane]

I think someone has been spraying herbicide and some wafted onto your tree.

Maybe it was atrazine. It is a commonly used broadleaf weed killer.

I suppose that’s possible : thanks

 

[Jpane]

This might help...don't know
https://www.extension.iastate.edu/news/2006/jul/070301.htm
There's contact details at the bottom. Maybe hear what she thinks.

I sent Iowa State extension the picture and I’ll see what they say. Thanks

 

[Trenthany]

Add location, at least USDA zone at minimum. A location can go a long way. For instance Virginia and Florida both have live oaks but problems could be very different.

 

[Jpane]

Add location, at least USDA zone at minimum. A location can go a long way. For instance Virginia and Florida both have live oaks but problems could be very different.

Medina,NY between Buffalo and Rochester: I’m not sure how to add that to my profile.

 

[Trenthany]

Medina,NY between Buffalo and Rochester: I’m not sure how to add that to my profile.

Up at the top next to the icon that looks like an envelope. There is a greenish J click it then click account details. You can fill in all kinds of stuff. Honestly I don’t think most people care except for location for trees.