Trees, Shrubs and Conifers: What's this on my Betula nigra 'summer cascade'?, 1 by dybbuk
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Image Copyright dybbuk
Subject: What's this on my Betula nigra 'summer cascade'?
Forum: Trees, Shrubs and Conifers
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dybbuk wrote: I have some thick, bumpy leaves with white powdery stuff on the underside. What is it? What should I do? |