Why are leaves turning yellow or orangish on Prairie rose tree?

Why are the leaves on my prairie rose tree turning yellow and orangish? It just started a few days ago…prior to that the leaves were green with a reddish tint to them. How to fix?

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2 Comments To "Why are leaves turning yellow or orangish on Prairie rose tree?"

#1 Comment By roseman On 08/09/2015 @ 3:52 am

If your rose tree was very full of foliage, and the temps have gotten hotter where you are, it could be just a normal response to the heat by the rose tree. When it gets very hot out, many rosebushes, rose trees included, will start dropping leaves in an effort to imporove air flower around and through the bush to keep cool and save on precious fluids. I will provide a link to an article for you to check out on this subject here: https://www.gardeningknowhow.com/ornamental/flowers/roses/yellow-rose-leaves.htm ^[1] and this one too: https://www.gardeningknowhow.com/ornamental/flowers/roses/leaves-falling-off-roses.htm ^[2]

#2 Comment By Downtoearthdigs On 08/10/2015 @ 11:37 pm

It could be an insect infestation or even a fungus issue.
If it has been dry this can cause stress on the plant, the same stresses and issues can be problematic if the weather has been damp.

You can treat with Neem Oil. This works as both an insecticide and fungicide.

I also may suggest adding some Epsom Salt. If it is a nutritional issue, this can help.

Here are a few links for you.

https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm ^[3]
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/epsom-salt-gardening.htm ^[4]

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URLs in this post:

[1] https://www.gardeningknowhow.com/ornamental/flowers/roses/yellow-rose-leaves.htm: https://www.gardeningknowhow.com/ornamental/flowers/roses/yellow-rose-leaves.htm

[2] https://www.gardeningknowhow.com/ornamental/flowers/roses/leaves-falling-off-roses.htm: https://www.gardeningknowhow.com/ornamental/flowers/roses/leaves-falling-off-roses.htm

[3] https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

[4] https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/epsom-salt-gardening.htm: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/epsom-salt-gardening.htm

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