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Sorbus aria 'Lutescens' Tree - Leaf disease issue

YandoYando Posts: 13
in Problem solving
Hello,

Hope someone can provide on how to resolve the damaged leaves on my tree. I've done some research but want to clarify with any experts. When I've zoomed into the picture, there are black slugs! Apparently they could be pear / larvae slugs but this isn't a fruit tree bit confused.

If these slugs are causing the issue to the leaves to go like this, what do you recommend. I've come across Neem Oil but not sure. Want my smooth light colour leaves back! haha. This looks horrible now. 

Thanks

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Posts

  • FairygirlFairygirl Posts: 55,117
    I've never seen whitebeams looking like this, but I see you have it in a pot. 
    That won't be the best growing conditions for it. 
    Do you have a photo of the whole thing - taken a bit further away?
    Also - what medium are you growing it in and what care has it had?
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • DovefromaboveDovefromabove Posts: 88,147
    @Fairygirl 😊 there’s   a photo of the whole tree last autumn here 
    https://forum.gardenersworld.com/discussion/1046205/sorbus-aria-lutescens-tree-help-with-health#latest 

    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





  • YandoYando Posts: 13
    edited July 2021
    thanks for finding my old post haha! @Dovefromabove

    To be fair we have two trees identical, the other one is fine but this one has started showing the weird leaves. 

    @Fairygirl Here is a latest full photo of the tree in the pot. It was temporary but covid got in the way to landscape the front! Unfortunately has to stay in the pot a bit longer. 

    The tree is watered regularly and I top it up with horse manure which was done last month. Not able to say what medium it is, sorry.







  • FairygirlFairygirl Posts: 55,117
    Sorry - I didn't see this until now. I think that's just very stressed. 
    A pot isn't great for them long term, as we discussed on your previous thread. It may be that this one has had more exposure to wind than your other one, which dries foliage out very quickly, and I doubt it's getting enough moisture to adequately sustain the existing foliage. 
    I'm wondering why you're topping it up with manure rather than just good soil, or a soil based compost.  As long as it is really well rotted, I'd expect that's ok for now. There isn't really enough room in that pot though.
    As long as it's being well watered every couple of days and has decent drainage, it might be ok for a while, but if you can get it into a sheltered spot with some shade, that will at least keep it from being stressed by weather - especially heat.

    They're very attractive, easy, quite substantial trees in the ground. 
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • YandoYando Posts: 13
    Fairygirl said:
    Sorry - I didn't see this until now. I think that's just very stressed. 
    A pot isn't great for them long term, as we discussed on your previous thread. It may be that this one has had more exposure to wind than your other one, which dries foliage out very quickly, and I doubt it's getting enough moisture to adequately sustain the existing foliage. 
    I'm wondering why you're topping it up with manure rather than just good soil, or a soil based compost.  As long as it is really well rotted, I'd expect that's ok for now. There isn't really enough room in that pot though.
    As long as it's being well watered every couple of days and has decent drainage, it might be ok for a while, but if you can get it into a sheltered spot with some shade, that will at least keep it from being stressed by weather - especially heat.

    They're very attractive, easy, quite substantial trees in the ground. 
    Thanks for the reply, much appreciated. Totally understand what you mean, the pot isn't ideal. Thought manure was a good idea but thanks for clarifying. 
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