Wisteria Vines
Q.

Wisteria Disease

ridgewood added on April 19, 2011 | Answered

My wisteria has brown through to cream patches on its branches and has a lot of dead branches. Is this a virus? Or could it be dry and need watering?

A.
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Heather
Certified GKH Gardening Expert
Answered on April 27, 2011

The patches sound like lichen, which does not kill plants but often attaches to sick plants. I would suspect that a fungus is attacking the plant. Treat the wisteria with a fungicide. I like neem oil myself as it will also kill any pests on the plant. Here is more information on it:
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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