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Question from Carolyn Jones


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Is this some sort of rust on my oak sapling??

Your advice would be appreciated. It was grown from an acorn and is now about 5ft and is in an exceptionally large pot presently - I know it would be better off in the ground.

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RUST? - OAK (21/03/2013)

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  • Views: 924
  • Replies: 2
  • Posted: Thu. 21st March 2013 16:57


Reply from Ashley Penn

Hi Carolyn,

If there are any raised bumps where the rust is then it might be Oak Leaf Blister. If no raised bumps then its just a spot rust. Either way its fungal. As the sapling is young I would advocate treating it with a proprietary fungicide to get rid of the infection once and for all. Rake up and burn any leaves - don't compost them.

kind regards,


  • Posted: Thu. 21st March 2013 23:25

Re: Re: RUST? - OAK

Reply from Carolyn Jones

Many thanks Ash.

  • Posted: Fri. 22nd March 2013 20:00