White powder on spartan apple seedlings

Discussion in 'Fruit and Nut Trees' started by Marin, Jul 4, 2017.

  1. Marin

    Marin New Member

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    Can anyone identify this white powder?
    It's not dust...

    I had eight spartan apple seedlings growing outside in cups and it affected all of them at once.
    They are still making new leaves. It takes about a week for the white powder to spread to the new leaves.
    Is it a fungus?

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  2. Daniel Mosquin

    Daniel Mosquin Renowned Contributor UBC Botanical Garden Forums Administrator Forums Moderator 10 Years

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  3. Marin

    Marin New Member

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    That's it. Thanks!
     

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