Diseased rhododendron

My daughter has sent me this photo of her young rhododendron as she is very concerned about the red markings on the leaves. I have no idea what it is, can you help?

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1 Comment To "Diseased rhododendron"

#1 Comment By Downtoearthdigs On 07/27/2016 @ 9:47 pm

We did not receive an image.
This sounds like a Leaf Spot fungus.
These articles have more information.

https://www.gardeningknowhow.com/ornamental/shrubs/rhododendron/issues-with-rhododendrons.htm ^[1]
http://www.clemson.edu/extension/hgic/pests/plant_pests/shrubs/hgic2050.html ^[2]

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URL to article: https://questions.gardeningknowhow.com/diseased-rhododendron/

URLs in this post:

[1] https://www.gardeningknowhow.com/ornamental/shrubs/rhododendron/issues-with-rhododendrons.htm: https://www.gardeningknowhow.com/ornamental/shrubs/rhododendron/issues-with-rhododendrons.htm

[2] http://www.clemson.edu/extension/hgic/pests/plant_pests/shrubs/hgic2050.html: http://www.clemson.edu/extension/hgic/pests/plant_pests/shrubs/hgic2050.html

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