Ident help - oak tree - brown edged leaves

[Baz5789]

Hi all,

 

I have an oak sapling whose leaves were lovely and green, but now the tips have all gone brown for the last few weeks. 
 

Might anyone know what it is? And how to get my oak back to top health?

 

Pics attached!

 

ty,

Barry

[Stubby]

2 hours ago, Baz5789 said:

Hi all,

 

I have an oak sapling whose leaves were lovely and green, but now the tips have all gone brown for the last few weeks. 
 

Might anyone know what it is? And how to get my oak back to top health?

 

Pics attached!

 

ty,

Barry

Could be drought stress or moth larvae feeding on the leaf possibly 

Edited June 3, 2022 by Stubby

[openspaceman]

18 hours ago, Stubby said:

Could be drought stress or moth larvae feeding on the leaf possibly 

I would expect moisture deficit to have a more overall effect, tip damage is often a mineral  deficiency but overall the rest of the leaves look a healthy green so I would go on insect damage. Squeeze the dead areas to see if you can squash any leaf miners else look for sawfly larvae.

[Baz5789]

Thanks to you both. 
 

I squished the brown part of a leaf and literally nothing came out except crusty brown leaf. 
 

I nipped the brown edge of one leaf off, and now the new edge is turning brown. 
 

Might this be something the tree just needs to work through or should I be helping it somehow?

 

thank you,

Barry

[openspaceman]

8 hours ago, Baz5789 said:

Thanks to you both. 
 

I squished the brown part of a leaf and literally nothing came out except crusty brown leaf. 
 

I nipped the brown edge of one leaf off, and now the new edge is turning brown. 
 

Might this be something the tree just needs to work through or should I be helping it somehow?

 

thank you,

Barry

You may have a case of Phytophthora ( looked it up for the spelling this time)

 

Ramorum disease (Phytophthora ramorum) - Forest Research

WWW.FORESTRESEARCH.GOV.UK

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Information, management advice and guidance on ramorum disease of forest trees and plants, and its causal agent...

 

[Dan Maynard]

It probably be happier in the ground to be honest, although it's late in the year to plant now.