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302 Views 1 Reply Last post: Jul 11, 2014 1:44 PM by MikeHardman RSS
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Jul 11, 2014 1:06 PM

Tree and disease ident ?

Hi There,

 

please can you let me know what this tree is and what is adffecting the leaves?

 

Malus of some sort ? - Apple scab ?  has been harshly pruned (leaders topped in last few years)

 

Thanks in advance

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  • Currently Being Moderated
    Jul 11, 2014 1:44 PM (in response to Stan)
    Re: Tree and disease ident ?

    Stan,

     

    Yes, definitely a Malus and possibly a crab apple; couldn't possibly suggest which cultivar.

     

    The disease might be apple scab, caused by the fungus Venturia inaequalis.

    Some info and guidance here, but it does not show the symptoms on the leaves

    - http://www.rhs.org.uk/advice/profile?pid=81

    That also does not mention that the afected leaves often show a puckering, too - as yours do.

    More cultural advice here

    - http://nysipm.cornell.edu/factsheets/treefruit/diseases/as/as.asp

    Leaf photo (but note there is a good deal of variation in its appearance):

    - http://careformytree.com/services/flowering-crab-hawthorne/

     

    Despite the variability of the symptoms on leaves, something's niggling me; perhaps its partly the fact that I can see no sign of it on the (few) fruits I can see. There's a chance it could be something else.

    ...But, having thought and researched a bit (rusts, leaf spots, ertc.), I can't find anyhting closer. So apple scab is the best I can come up with.

     

    Now I've given you that pointer, perhaps you can compare photos with more leaves (and fruit) on your tree. You might be able to decide it is or isn't.

     

    If you are near an RHS garden, you can probably take a sample there for an opinion.

     

    Mike

    PS. wind can cause somewhat similar damage to leaves, especially if they flap about against other twigs

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