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Root rot (Rhizoctonia) on Fern, Boston (Nephrolepis exaltata `Bostoniensis')


4 Images
5368533
Paul Bachi
University of Kentucky Research and Education Center

The plant has had too much water and the roots are rotting due to the fungus, Rhizoctonia.

5368534
Paul Bachi
University of Kentucky Research and Education Center

The plant has had too much water and the roots are rotting due to the fungus, Rhizoctonia.

5368535
Paul Bachi
University of Kentucky Research and Education Center

The plant has had too much water and the roots are rotting due to the fungus, Rhizoctonia.

5368536
Paul Bachi
University of Kentucky Research and Education Center

Leaflets show what appears to be Potassium deficiency symptoms (light brown areas near the margin of the leaf or just inside the margin). The problem is not a potassium deficiency in the medium but a lack of enough healthy roots to take up required nutrients.