Wisteria Vines
Q.

Yellow spots on wisteria leaves

Zone Mediterranean. West Australia | Anonymous added on October 31, 2016 | Answered

My otherwise healthy young wisteria has yellow spots on lower, older leaves which is spreading. Is it root rot or something else? Looks like fungus. How should I treat it, please? Thanks so much.

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on October 31, 2016

There can be a few reasons for the yellowing leaves. Watering issues; to much or to little.
Insects or fungus and even nutrient issues.

I do see mottling in the coloring of the leaves which does appear to be Tobacco Leaf Mosaic Virus.
You can try applications of a fungicide.

Here are some links with more information.

https://www.gardeningknowhow.com/plant-problems/disease/tobacco-mosaic-disease.htm

https://www.gardeningknowhow.com/ornamental/vines/wisteria/wisteria-with-yellow-leaves.htm

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