Pear fungus

Discussion in 'Bugs and Crud' started by BuckmasterTreeService, Sep 21, 2017.

  1. BuckmasterTreeService

    BuckmasterTreeService Member

    Joined:
    Dec 24, 2014
    Messages:
    75
    Location:
    Shawnee
    What is this? It is on almost every leaf of a bradfordish pear tree. It hasn't entered the stems. What treatments would be recommended if any?
     

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    ClimbMIT likes this.
  2. JD3000

    JD3000 Well-Known Member

    Joined:
    Aug 28, 2016
    Messages:
    4,058
    Location:
    Columbus
    Gymnosporangium rust. Alternate hosts are junipers.

    Been popping up more and more over the last couple of years so it's probably a newer or less common species than the big 3 we normally see on Rosaceous host: cedar-apple, cedar-hawthorn, and cedar-quince.
     

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